Dissociation Products Research Articles

Electron Delocalized Ni Active Sites in Spinel Catalysts Enable Efficient Urea Oxidation.

The urea oxidation reaction (UOR) has attracted much attention as an efficient alternative reaction to oxygen evolution reaction (OER) due to its low required overpotential. Despite significant progress in efficient nickel-based catalysts, the fundamental issues regarding product selectivity control and dissociation mechanism during the UOR process have not been clarified. Here, we report that tuning the electron delocalization strength of Ni sites significantly affects the OH- binding sites, altering urea molecule dissociation patterns in alkaline systems. Using spinel NiCo2O4 as a model catalyst, the charge delocalization strength of nickel active centers is influenced by the degree of phosphorus-substituted anions. Specifically, complete phosphorus-substituted spinel enhances N2 selectivity up to 26.8 % with a peak current density of 300 mA ⋅ cm-2, while partial phosphorus-substituted spinel achieves a Faraday efficiency of 78.1 % for liquid products (NOx -). Experiments and theory reveal that strong charge delocalization at Ni sites favors remote-site attack on urea molecules by hydroxide ions, whereas weak delocalization prefers nearby-site attack, enhancing UOR efficiency and suppressing OER in both pathways.

Electron Delocalized Ni Active Sites in Spinel Catalysts Enable Efficient Urea Oxidation

The urea oxidation reaction (UOR) has attracted much attention as an efficient alternative reaction to oxygen evolution reaction (OER) due to its low required overpotential. Despite significant progress in efficient nickel‐based catalysts, the fundamental issues regarding product selectivity control and dissociation mechanism during the UOR process have not been clarified. Here, we report that tuning the electron delocalization strength of Ni sites significantly affects the OH‐ binding sites, altering urea molecule dissociation patterns in alkaline systems. Using spinel NiCo2O4 as a model catalyst, the charge delocalization strength of nickel active centers is influenced by the degree of phosphorus‐substituted anions. Specifically, complete phosphorus‐substituted spinel enhances N2 selectivity to over 26.8% with a peak current density of 300 mA·cm‐2, while partial phosphorus‐substituted spinel achieves a Faraday efficiency of 78.1% for liquid products (NOx‐). Experiments and theory reveal that strong charge delocalization at Ni sites favors remote‐site attack on urea molecules by hydroxide ions, whereas weak delocalization prefers nearby‐site attack, enhancing UOR efficiency and suppressing OER in both pathways.

Vibrational ladder climbing dissociation of LiH molecules excited by non-chirped pulses

Vibrational ladder climbing (VLC) is one of the advanced methods for achieving molecular dissociation, usually requires the use of chirped laser pulses to adapt to the change of energy difference between molecular vibrational levels. In this work, a scheme is proposed for using non-chirped pulses to couple the vibrational rotational levels of excited state to realize VLC dissociation of LiH molecules in the excited state. The first pulse induces population excitation to the excited state A1Σ+, while the second pulse is used to drive the excited state vibrational levels population up step by step until dissociation occurs. The non-chirped pulse VLC dissociation dynamics is investigated using the time-dependent quantum wave packet theory method. The “”climb steps” process for excited state molecules at low full width at half maximum (FWHM) of the second laser pulse is demonstrated. The frequency has an obvious influence on the distribution of excited state vibrational rotational levels and further affects the relaxation process of the undissociated part and the angular distribution of dissociation products. It is also explained that the anomalous decrease of dissociation probability is caused by vibrational levels oscillation.

Numerical simulation of homogeneous elemental mercury oxidation within an electrostatic precipitator

The corona discharge in electrostatic precipitator (ESP) can contribute to homogenous Hg0 oxidation, thus favoring the simultaneous removal of mercury by the existing air pollution control devices in coal-fired power plant. A multi-field model consisting of reaction kinetics and dynamics was established to simulate the Hg0 oxidation performance in ESPs. The HCl dissociation products (i.e., Cl and Cl2) were responsible for the oxidation of Hg0 to HgCl2 and HgCl, in which the Hg0 oxidation efficiency (EHg) was increased from 13.3 % to 52.6 % with the increase of HCl concentration from 1 to 4 ppm. The increase of O2 concentration from 2 % to 8 % resulted in 2.1 % reduction of EHg, which was primary attributed to the inhibition of HCl dissociation process to form Cl-containing species. As the H2O content increased from 3 % to 12 %, EHg rose from 25.9 % to 29.1 %, due to H2O dissociation products (i.e., H and OH) enhancing the formation of Cl-containing species from HCl dissociation. The voltage fluctuations demonstrated dual effects on EHg: increasing from 35 kV to 40 kV reduced efficiency from 27.3 % to 26.4 %, attributed to diminished Cl-containing species, whereas further increasing to 50 kV enhanced efficiency to 32.1 % due to increased production of O-containing substances. A higher flow rate facilitated the escape of reactive chemical species from ESPs. The EHg decreased from 36.3 % to 17.5 % when the flow velocity increased from 0.1 to 0.25 m/s. These results clarified the key factors for affecting Hg0 oxidation within an ESP, which provides the fundamental to simultaneously control Hg0 emission from coal-fired power plants.

Ice-grain impact on a rough amorphous silica surface

Using molecular dynamics simulation, we analyze the collision between a water-ice grain and a silica surface. Both a flat and porous surfaces are studied. We find that the presence of pores in the silica sample and the induced roughness of the silica surface significantly influence the collision outcome. The presence of pores on the surface increases the contact area of the colliding grain with the silica sample, and consequently also the number of reaction products, i.e., water dissociation products and silanol groups formed at the silica surface. The effect is maximum if the pore size is of the order of the grain radius. In addition, the presence of pores on the surface allows for the penetration of water molecules under the surface, molecule ejection from the colliding ice grain is enhanced, and dissipation of the collision energy into the sample is hindered.

Study on photodissociation spectra and decay pathways of gas-phase PdCl3– and PdCl2– anions by electrospray ionization mass spectrometry and MRCI calculation

We investigate photodissociation of the gas-phase palladium complex anions, Pd(II)Cl3- and Pd(I)Cl2-, both experimentally and theoretically. Visible photodissociation mass spectrometry reveals that the main dissociation channels differ for Pd(II)Cl3- and Pd(I)Cl2-; the former yields neutral chlorine atom (Pd(I)Cl2- + Cl) whereas the latter affords chloride anion (Pd(I)Cl + Cl-). Absorption spectrum and photodissociation channels are predicted using the MRCI method. The observed absorption spectrum and dissociation product for Pd(II)Cl3- agree with the MRCI calculation, whereas those for Pd(I)Cl2- do not, which suggests that some relaxation process such as internal conversion significantly contributes to the photodissociation of Pd(I)Cl2-.

Simulation Study on Reservoir Stimulation of Multihorizontal Wells for Gas Hydrate Production in Low-Permeability Reservoirs.

The feasibility of hydrate exploitation technology has been verified by two rounds of trial productions in the South China Sea, but it is also faced with the problem of low gas production efficiency. Therefore, this paper proposed four different hydrate production cases with multihorizontal wells and established simulation models. Then, the influence patterns of reservoir stimulation and offset distances on hydrate dissociation, saturation change, and pressure distribution were studied. To understand hydrate dissociation behaviors and production performances, the coupling effects of multihorizontal wells were discussed. Through simulation, the following conclusions could be drawn: (1) hydrate reservoir stimulation could effectively increase gas production. In these four production models, the cumulative gas production in Case C (multihorizontal wells + reservoir stimulation) was 5.27 times that of Case A (only multihorizontal wells) in 330 days. However, in Case D with screen completions, the gas output was 15.58% less compared with Case C. (2) Different offset distances of horizontal wells had a relatively minor impact on the cumulative gas yield and daily gas capacity. In addition, the variation range of hydrate saturation changed with offset distances of horizontal wells, indicating that hydrate dissociation occurred mainly around horizontal wells and fractures. (3) Considering interwells coupling, the daily gas rate and cumulative gas production of inner wells were higher than outer wells, and the cumulative gas volume increased by 6.4% in 330 days. Temporally and spatially, the hydrate saturation variation between wells was significantly faster than the outward expansion from the horizontal wells. Moreover, nearer to the axis of the horizontal wells, the variation in the hydrate saturation was more pronounced. These results could provide theoretical data to optimize marine hydrate development with multihorizontal wells.

Syntheses, Structures, Properties, and Calculation of a Family of Ionic Crystals Based on 1,3‐bis(5‐tetrazolyl)triazene

AbstractSodium salt of 1,3‐bis(5‐tetrazolyl)triazene (NaH2BTT ⋅ 4H2O) was obtained through diazo‐couple reaction with 5‐aminotetrazole as starting reactants, and a family of energetic ionic crystals of the 1,3‐bis(5‐tetrazolyl)triazene anions HnBTT(3−n)− with different cations were investigated, including protonated amines (ethanediamine, hydrazinium, aminoguanidine, methylhydrazinium) and Y(H2O)83+. The structures and physicochemical properties of these compounds were characterized by IR, Raman, X‐ray diffraction (XRPD) and TG‐DSC. Ethanediamine salt is the best thermal stable, while hydrazinium salt possesses a highest nitrogen rich value of 79.76 %. Both of them show a rapid collapse of the BTT main frame, and almost all of the dissociation products are released in the form of gas.

Hydrodeoxygenation of Glycerol to Propene Over Molybdenum and Niobium Phosphate Catalysts

AbstractIn single‐step conversion of glycerol to propene, the intricate catalytic pathways with molybdenum and niobium catalysts remain elusive. While these catalysts can effectively accelerate the hydrogenolytic cleavage of the glycerol CO bonds, resulting in a high selectivity to propene, the routes have not been thoroughly studied. This study explores the reaction routes and the role hydrogen plays in determining the product distribution. The hydrodeoxygenation (HDO) of glycerol was investigated using various glycerol purities in both batch and continuous reaction modes. Remarkably, Mo(PO4)x and Nb(PO4)x demonstrated catalytic performance with raw glycerol, indicating that impurities had no detrimental effect on the catalyst's activity. In batch mode, a propene selectivity of 53% was achieved over Mo(PO4)x as the catalyst, highlighting the catalyst's stability under these conditions. In continuous operation, the highest product selectivity to propene (12%) was observed at low temperatures (573 K), while more C2 to C6 alkanes were formed at increased temperatures (623 and 673 K). Whereas a hydrogen atmosphere promotes formation of 2‐propenol, as primary precursor to propene, an inert atmosphere leads to increased formation of propanal and dissociation products. Our work has elucidated new routes to upcycle biorenewable glycerol to propene over Mo(PO4)x and Nb(PO4)x catalysts.

Surface science studies on electron-induced reactions of NH3 and their perspectives for enhancing nanofabrication processes

Ammonia (NH3) dissociates efficiently when it interacts with an electron beam. This applies not only to single electron-NH3 collisions in the gas phase but also to electron irradiation of NH3 adsorbed on surfaces. The dissociation products include atomic hydrogen which can act as a reducing agent or NH2 radicals that can bind to suitable surfaces or to adsorbed molecules. This chemistry can be exploited in nanofabrication processes that use electron beams for deposition, etching, or modification of materials. This review describes the current state of insight regarding electron-induced reactions of NH3 adsorbed on surfaces and outlines approaches to the use of these reactions for enhancing electron beam induced nanofabrication processes. First, an overview of surface science studies on electron-induced reactions of NH3 adsorbed on single crystal surfaces is given. This is followed by a summary of studies on the use of NH3 for improving the purity of deposits prepared by electron beam induced deposition (EBID) and on the prospects of NH3 to suppress unwanted thermal surface chemistry during EBID. Finally, we discuss electron-induced reactions of NH3 that are fundamental to the modification of carbonaceous nanomaterials as well as potential application scenarios such as the functionalization of self-assembled monolayers and humidity sensing.

Experimental studies and pore-scale modeling of hydrate dissociation kinetics at different depressurization rates in a cubic hydrate simulator

Natural gas hydrate (NGH) is a promising energy resource that has triggered a race for scientific innovation in energy and environmental research. However, there still faces the challenges of low-efficiency hydrate dissociation and unstable gas production during the hydrate production. Clarifying the kinetic mechanism of hydrate dissociation is the key to improving the efficiency of “phase-transition to gas-supply” in hydrate-bearing sediment. This study successfully conducts hydrate dissociation experiments with different depressurization rates in the Cubic Hydrate Simulator (CHS). A novel dissociation kinetic model integrating the hydrate pore-scale morphology and its evolutions are established, and the sensitivities of the kinetic and thermal parameters are discussed in detail. The mathematical relationship between the hydrate saturation and reaction area is quantitatively analyzed for the hydrate formation and dissociation kinetics. The history matching simulation with the newly developed model achieves an excellent agreement with the experimental results. The full-lifecycle kinetic behaviors of the hydrate dissociation in the depressurization experiments are finely characterized. It is found that the evolutions of the hydrate saturation (SH) and temperature (T) spatial distributions exhibit strong heterogeneous characteristics in the vessel due to the phase transition and heat transfer effects. In addition, this reveals that the relatively high depressurization rate can lead to a more significant dissociation rate in the depressurization stage. This provides a new reliable and adaptable method for describing the hydrate dissociation kinetics in the porous media.

Glucose Oxidase-Based Glucose Biosensing with a Simple Dual Ag/AgCl Probe Conductivity Readout.

We describe a conductometric assay of the enzymatic conversion of glucose to gluconic acid by dissolved glucose oxidase (GOx), using the generation of proton and gluconate from the reaction product dissociation for glucose detection. Simple basics of ionic conductivity, a silver/silver chloride wire pair, and a small applied potential translate glucose-dependent GOx activity into a scalable cell current. Enzyme immobilization and complex sensor design, involving extra nanomaterials or microfabrication of electrode structures, are entirely avoided, in contrast to all modern electrochemical glucose biosensors. Assay calibration showed a response linearity up to 500 μM, with a sensitivity of about 1.3 nA/μM. Selectivity tests excluded signals from sugars other than glucose, and glucose quantifications with recovery rates close to 100% were reached with a model sample and a beverage. Easy use of elementary physicochemical phenomena and a satisfactory performance are assets of the proposed non-amperometric glucose biosensing strategy. Assay integration into a planar dual electrode platform, with or without microfluidic application option, is feasible because of the simplicity of the sensor readout and suggests a route to affordable glucose analysis in beverage, food, and body fluid samples.

Gold(I) Catalysis in Alkyne-Alkene Reactions: A Systematic Exploration through Molecular Electrostatic Potential Analysis.

Gold catalysis enables selective chemical transformations with catalytic activity tunable through ligand selection. This study uses the density functional theory (DFT) to explore the impact of phosphine ligands (PR3) on gold(I)-catalyzed alkyne-alkene cyclobutene formation. We analyze the following key steps: (i) PR3-Au+ complexation, (ii) alkyne binding, (iii) alkene binding, (iv) C-C coupling transition state, (v) cyclobutene formation transition state, and (vi) cyclobutene dissociation. Molecular electrostatic potential (MESP) analysis provided a deeper understanding of electronic effects and revealed a strong correlation between the change in MESP at the gold nucleus (ΔNVAu+) upon complex formation with various ligands and the corresponding complexation energy, as well as between the change in MESP at the alkyne carbon (ΔVC) and the C-C coupling step activation barrier. This establishes MESP as a powerful tool for understanding ligand influence on catalysis. Our findings suggest that electron-donating phosphine ligands, combined with electron-withdrawing alkyne substituents, enhance catalyst turnover, promote cyclobutene product dissociation from the gold(I) complex, and facilitate catalyst regeneration. Solvent effects also play a crucial role. Bulky XPhos, JohnPhos, and CyJohnPhos ligands enhance gold(I) catalysis via steric protection, electron donation, and catalyst regeneration efficiency. In conclusion, this study provides insights into ligand effects in gold(I)-catalyzed cyclobutene formation, guiding future catalyst design.

Impact of Temperature on the Solubility of Ionic Compounds in Water in Cameroon

Purpose: The aim of the study was to assess impact of temperature on the solubility of ionic compounds in water in Cameroon. Methodology: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low cost advantage as compared to field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries. Findings: The study found that the solubility of most ionic compounds increases with an increase in temperature. This is because higher temperatures provide more kinetic energy to the ions, helping them to break free from the crystal lattice and dissolve in water. For example, the solubility of salts like potassium nitrate (KNO3) significantly increases as the temperature rises, allowing more of the compound to dissolve. However, this trend is not universal for all ionic compounds. Some, such as calcium sulfate (CaSO4), exhibit a decrease in solubility with rising temperature. This anomaly can be attributed to the exothermic nature of the dissolution process for these compounds, where heat is released when they dissolve. As temperature increases, the equilibrium shifts to favor the solid form, reducing solubility. Therefore, while temperature generally enhances the solubility of ionic compounds in water, specific behaviors can vary depending on the individual compound's dissolution characteristics and thermodynamic properties. Implications to Theory, Practice and Policy: Le Chatelier’s principle, Arrhenius theory of dissociation and solubility product constant (KSP) theory may be used to anchor future studies on assessing impact of temperature on the solubility of ionic compounds in water in Cameroon. Practical applications of temperature-dependent solubility data should be integrated into industrial processes, particularly in fields such as pharmaceuticals, fertilizers, and desalination. Policymakers should consider incorporating temperature-dependent solubility data into environmental regulations, particularly concerning water pollution and waste management.

Reactivity of graphene-supported Co clusters

Graphene-supported Co clusters were investigated by high-resolution XPS, TPD and IRRAS using CO as a probe molecule. CO adsorption was observed at edge, on-top and bridge/hollow sites on the as-prepared clusters. Temperature-programmed XPS showed CO dissociation at T > 300 K. The CO desorption temperatures were determined by TPD measurements to be 260, 320 and 400 K for CObridge/hollow, COedge and COtop, respectively. The CO dissociation products were used to investigate the adsorption of CO on carbon and oxygen precovered Co clusters. Site blocking by these adatoms was found resulting in the absence of COedge (XPS and TPD) and a decrease of the CO adsorption capacity (XPS, TPD and IRRAS). Additionally, no CO dissociation was found on the precovered clusters concluding a blocking of the catalytically active sites which are the edge sites of the clusters.

How Solvation Alters the Thermodynamics of Asymmetric Bond-Breaking: Quantum Simulation of NaK+ in Liquid Tetrahydrofuran.

Gas-phase potential energy surfaces (PESs) are often used to provide an intuitive understanding of molecular chemical reactivity. Most chemical reactions, however, take place in solution, and it is unclear whether gas-phase PESs accurately represent chemical processes in solvent environments. In this work we use quantum simulations to investigate the dissociation energetics of NaK+ in liquid tetrahydrofuran (THF) to understand the degree to which solvent interactions alter the gas-phase picture. Using umbrella sampling and thermodynamic integration techniques, we construct condensed-phase free energy surfaces of NaK+ on THF in both the ground and electronic excited states. We find that solvation by THF completely alters the nature of the NaK+ bond by reordering the thermodynamic dissociation products. Reaching the thermodynamic dissociation limit in THF also requires a long-range charge transfer process that has no counterpart in the gas phase. Gas-phase PESs, even with perturbations, cannot adequately describe the reactivity of simple asymmetric molecules in solution.

Gold in sulfide fluids revisited

Gold solubility was measured at temperatures of 350, 400, 450, and 490 °C and pressures of 500 and 1000 bar in an ’oxidized sulfide’ system, as a function of pHT (2 – 10) and sulfur concentration (m(Stotal) = 0.03 – 1.2 [mol·(kg H2O)-1]). In this system, sulfur primarily exists as H2S, H2SO3, H2SO4, their dissociation products, and radical species such as S2- and S3-. The complexes Au(HS)2-, Au2S22-, AuHS(aq), AuHS(H2S)3(aq), and AuOH(aq) were identified as the primary gold species in the experimental fluids, varying with pH and m(Stotal). The solubility constants for Au(HS)2-, a critical (hydro)sulfide complex, align excellently with literature for ’reduced sulfide’ fluids, where sulfur predominantly exists in the 2- oxidation state. New experimental data from the ’oxidized sulfide’ system were regressed along with reliable literature data from ’reduced sulfide’ systems to calculate standard thermodynamic properties and parameters of the Helgeson-Kirkham-Flowers (HKF) model. The solubility constants for charged complexes, Au(HS)2- and Au2S22-, increase sharply with temperature, whereas those for neutral species, AuHS(aq) and AuHS(H2S)3(aq), show a pronounced peak near 300 °C. These (hydro)sulfide complexes account for gold solubility ranging from a few tens of ppb to a few tens of ppm in natural sulfide fluids, depending on the fluid pH. Thermodynamic calculations also indicate that, in addition to (hydro)sulfide species and the hydroxide complex, AuCl2- significantly contributes to Au mobility in high-temperature acidic chloride fluids. Based on new experimental data and prior studies using solubility and X-ray absorption spectroscopy methods, other gold complexes including mixed Au-HS-Cl, Au-HS-S3- species, and complexes with alkali metal cations, are deemed redundant. Above 250 °C, the influence of chloride salts on gold solubility can be accurately modeled using a simple extended Debye-Hückel equation with the term bγ·I = 0. The Setchenov coefficient bn = 0 suffices for calculating the activity coefficients of neutral species. This streamlined thermodynamic model aligns closely with earlier experimental work by Terry Seward and his team, effectively describing the state of Au in all types of natural fluids where Au exists in the 1+ oxidation state, under any set of P-T-f(O2)-f(S2)-compositional parameters.

6-Phosphogluconate dehydrogenase 2 bridges the OPP and shikimate pathways to enhance aromatic amino acid production in plants.

The oxidative pentose phosphate (OPP) pathway provides metabolic intermediates for the shikimate pathway and directs carbon flow to the biosynthesis of aromatic amino acids (AAAs), which serve as basic protein building blocks and precursors of numerous metabolites essential for plant growth. However, genetic evidence linking the two pathways is largely unclear. In this study, we identified 6-phosphogluconate dehydrogenase 2 (PGD2), the rate-limiting enzyme of the cytosolic OPP pathway, through suppressor screening of arogenate dehydrogenase 2 (adh2) in Arabidopsis. Our data indicated that a single amino acid substitution at position 63 (glutamic acid to lysine) of PGD2 enhanced its enzyme activity by facilitating the dissociation of products from the active site of PGD2, thus increasing the accumulation of AAAs and partially restoring the defective phenotype of adh2. Phylogenetic analysis indicated that the point mutation occurred in a well-conserved amino acid residue. Plants with different amino acids at this conserved site of PGDs confer diverse catalytic activities, thus exhibiting distinct AAAs producing capability. These findings uncover the genetic link between the OPP pathway and AAAs biosynthesis through PGD2. The gain-of-function point mutation of PGD2 identified here could be considered as a potential engineering target to alter the metabolic flux for the production of AAAs and downstream compounds.

Mass transfer and formation of micro-inclusions in Ti-sapphire grown by the HDC method

The formation mechanism of micro-inclusions in titanium-sapphire crystals grown with the method of horizontal directional crystallization in a gas atmosphere was studied. It has been shown that the micro-inclusions of metallic tungsten and/or molybdenum are mainly formed at the surface of the unmelted charge. The thermodynamic analysis of the possible reactions of Mo and W among the charge components, the products of charge dissociation, and the components of the technological atmosphere was carried out. It is shown that CO2, CO, H2O, as well as suboxides of Al and Ti, can serve both as oxidizers of Mo and W and as reducing agents of their condensed oxides. The mechanism of mass transfer within which gaseous Mo and W oxides are reduced on the charge surface to form metal micro-particles was proposed. These particles further fall into the melt and then are transported with convective flows to the crystallization front and embedded into the crystal as micro-inclusions.

Experimental study on the effect of PVP, NaCl and EG on the methane hydrates formation and dissociation kinetics

The problem of hydrate plug, low efficiency of hydrate dissociation and short production time in hydrate exploitation processes have significantly hindered the commercial viability of gas hydrate extraction. This study investigated the inhibitory effects of ethylene glycol (EG), EG + polyvinyl pyrrolidone (PVP), and EG + PVP + sodium chloride (NaCl) on methane hydrate formation through experiment. The hydrate inhibitory performance is evaluated by using differential of pressure curve, the amount of hydrate, and pressure drop values, and the effects of different temperatures, pressures, inhibitors, and injection time on hydrate dissociation are further studied. The experiment results indicate that the rank of inhibitors combination in terms of effectiveness is 5%EG + 0.5 wt%PVP + 3 wt%Nacl > 10%EG + 1 wt%PVP > 30% EG. At low-temperature conditions, 30% EG exhibits good inhibition of hydrate synthesis but poor dissociation efficiency. As temperature increases, the hydrates dissociation rate with 30% EG also increases. For the combination inhibitor system of EG, PVP, and NaCl, PVP will reduce the dissociation efficiency of hydrates, while EG and Nacl will improve the hydrate dissociation performance. For low production pressure, it is found that 10% EG + 10% NaCl have a good promotion effect on hydrate dissociation, whereas under high production pressure, 20% EG + 10% NaCl is more effective. Furthermore, injecting the inhibitors earlier enhances the dissociation of hydrates more effectively.