Recovery Of Sulfur Dioxide Research Articles

The Leaching and Kinetics of Magnesium in Phosphate Ore Slurry during FGD Process

The phosphate ore reserves in China are very large, but the overall quality is poor, and the magnesium impurity in phosphate ore is not conducive to the production of phosphorus chemical products. Recovery of sulfur dioxide from exhaust gas by phosphate slurry is a new desulfurization technology developed in recent years. During SO2 removal from flue gas by phosphate ore slurry, in phosphate ore magnesium can be simultaneously reduced. The magnesium leaching process could be described by the reaction-controlled shrinking core model. The leaching process of magnesium from phosphate ore slurry in FGD process includes 5 steps and 10 steps, which describes a gas-liquid-solid three-phase complete reaction process of removing magnesium from industrial flue gas desulfurization of phosphate slurry. In this study, a three-phase mass transfer kinetics model was established to find the controlling factors of the desulfurization reaction rate of the magnesium removal system of phosphate ore slurry in the FGD Process, and the research showed that the gas film resistance was the key control step, the solid film resistance was negligible. The reaction relation of desulfurization and removal of magnesium from phosphate slurry was obtained as k=3.766and#215;e-10318.39/RT.

Environmental and economic evaluation of SO2 recovery in a ceramic hollow fibre membrane contactor

Recovery of sulfur dioxide from gas emissions using a membrane device instead of technology based on dispersive absorption (e.g. scrubbers) is considered as an alternative to reduce environmental impacts and costs associated to solvent losses. The technical viability has been demonstrated in the recent literature but an economic estimation has to be performed in order to evaluate the application of these processes in an industrial scale.This work considers a ceramic hollow fibre membrane contactor as membrane device to recover sulfur dioxide from gas streams. In addition to the technical considerations, environmental and economic issues are discussed in order to include these aspects in the decision making for industrial application. The economic estimation is carried out in terms of investment and operating costs and it is observed that the industrial application is strongly dependent on the environmental restrictions and the concentration of sulfur dioxide at the inlet of the membrane device.

Modelling of a hollow fibre ceramic contactor for SO 2 absorption

Process intensification allows significant improvements in chemical manufacturing and processing, leading to cheaper, safer and cleaner technologies. Recovery of sulfur dioxide from gas emissions using a membrane device instead of dispersive absorption (e.g. scrubbers) may intensify the process and it is in the spotlight of many investigations. This work develops the modelling of a ceramic hollow fibre membrane contactor used as membrane device in SO 2 absorption. The modelling of mass transfer through the membrane is performed in order to evaluate the technical possibilities of the process. The effect of partial wetting on the mass transfer and the influence that operation conditions have on the process efficiency are evaluated. Solvent selection is an important variable to be taken into account in the technical application of the process; this variable is studied through the Henry's law constant ( H).

Recovery of Sulfur Dioxide Using Non-Dispersive Absorption

Removal of SO2 from gas emissions by selective absorption into a liquid is a common method to reduce air pollution and environmental risks. The absorption efficiency is determined by the interaction between the gases and the liquid. A great number of gas desulphurization methods have been developed where aqueous or organic solvents are used as sorbents.N,N-dimethylaniline (DMA) is an organic solvent used in the industry because its affinity with SO2. This absorption is neither too strong nor too weak, thus absorption and desorption can occur leading to a regenerative process where SO2 can be recovered. However, a direct contact between SO2 and DMA leads to several environmental problems caused by solvent evaporation and drops dragging into the gas stream.In order to increase the process efficiency and reduce environmental risks, a non-dispersive absorption process using hollow fibre membrane modules is developed in this work for a solvent zero emission process. The mass transfer into a fibre may be described by three main assumptions: gas-phase laminar flow, gas-phase plug-flow and gas-phase mixing. A numerical calculation was carried out to establish the performance of a hollow fibre membrane contactor for the removal of SO2 when water and N,N-dimethylaniline are used as sorbents in order to compare both, wetted and non-wetted operating modes.

Gas separation and purification by polymeric adsorbents: flue gas desulfurization and sulfur dioxide recovery with styrenic polymers

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGas separation and purification by polymeric adsorbents: flue gas desulfurization and sulfur dioxide recovery with styrenic polymersE. S. Kikkinides and R. T. YangCite this: Ind. Eng. Chem. Res. 1993, 32, 10, 2365–2372Publication Date (Print):October 1, 1993Publication History Published online1 May 2002Published inissue 1 October 1993https://doi.org/10.1021/ie00022a020RIGHTS & PERMISSIONSArticle Views350Altmetric-Citations21LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (855 KB) Get e-Alerts Get e-Alerts

Simultaneous sulfur dioxide/nitrogen oxide (NOx) removal and sulfur dioxide recovery from flue gas by pressure swing adsorption

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSimultaneous sulfur dioxide/nitrogen oxide (NOx) removal and sulfur dioxide recovery from flue gas by pressure swing adsorptionEustathios S. Kikkinides and Ralph T. YangCite this: Ind. Eng. Chem. Res. 1991, 30, 8, 1981–1989Publication Date (Print):August 1, 1991Publication History Published online1 May 2002Published inissue 1 August 1991https://doi.org/10.1021/ie00056a048RIGHTS & PERMISSIONSArticle Views379Altmetric-Citations19LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (923 KB) Get e-Alerts Get e-Alerts

Sulfur dioxide recovery by means of adipic acid buffers

Sulfur dioxide recovery by means of adipic acid buffers

Economic Factors in Recovery of Sulfur Dioxide from Power Plant Stack Gas

Economic Factors in Recovery of Sulfur Dioxide from Power Plant Stack Gas

RATE OF AMMONIUM SULFITE OXIDATION IN AQUEOUS SOLUTIONS

The rate of the homogeneous reaction of dissolved oxygen and ammonium sulfite in aqueous solutions without catalysts, which has industrial importance in recovery of sulfur dioxide, was studied at 2O, 25 and 3O °C. A polarographic method using a platinum microelectrode was employed for the determination of the oxygen concentration during the course of reaction. Two reactors of different size, which contained O.5 and 4.7 l of solution, respectively, were found to give essentially the same results. The rate of ammonium sulfite oxidation was found to be about one tenth of that of sodium sulfite. The influence of impurities on the rate was found very remarkable. The existence of inhibitors suggested that the reaction might be a radical one. An empirical rate equation, r=k[SO32-]3/2[O2]0[H+]2 in M•min-1 with k= 1.6× 1039exp(-35× 103/RT), was obtained in the experimental range of this work.

Collaborative Study on Assay of Sulfur Dioxide in Dried Fruit

Abstract Sulfur dioxide analysis by official (Monier-Williams) methods was compared with a new colorimetric procedure for dried fruits. Dried peaches, pears, apples and golden raisins were the test materials. The colorimetric method was found to be neither more nor less variable than two official methods except in analysis of dried pears, took less time and was easier to perform than the official methods, and yielded satisfactory recovery of sulfur dioxide.

Recovery Of Sulfur Dioxide from Flue Gases

Recovery Of Sulfur Dioxide from Flue Gases

Recovery of Sulfur Dioxide from Waste Gases

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRecovery of Sulfur Dioxide from Waste GasesH. F. Johnstone and A. D. SinghCite this: Ind. Eng. Chem. 1940, 32, 8, 1037–1049Publication Date (Print):August 1, 1940Publication History Published online1 May 2002Published inissue 1 August 1940https://doi.org/10.1021/ie50368a007RIGHTS & PERMISSIONSArticle Views183Altmetric-Citations7LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (2 MB) Get e-Alerts

Recovery of Sulfur Dioxide from Water Gases

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRecovery of Sulfur Dioxide from Water GasesH. F. Johnstone, H. J. Read, and H. C. BlankmeyerCite this: Ind. Eng. Chem. 1938, 30, 1, 101–109Publication Date (Print):January 1, 1938Publication History Published online1 May 2002Published inissue 1 January 1938https://doi.org/10.1021/ie50337a020RIGHTS & PERMISSIONSArticle Views141Altmetric-Citations16LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (1 MB) Get e-Alerts

Recovery of Sulfur Dioxide from Waste Gases

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRecovery of Sulfur Dioxide from Waste GasesH. F. JohnstoneCite this: Ind. Eng. Chem. 1937, 29, 12, 1396–1398Publication Date (Print):December 1, 1937Publication History Published online1 May 2002Published inissue 1 December 1937https://doi.org/10.1021/ie50336a019RIGHTS & PERMISSIONSArticle Views73Altmetric-Citations6LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (354 KB) Get e-Alerts

Recovery of Sulfur Dioxide

A PROCESS FOR RECOVERING SO2 FROM A GAS IN WHICH THE GAS IS PASSED THROUGH A BED OF REACTIVE UO2 TO ABSORB THE SO2. THE SATURATED BED IS RECONSITUTED BY PASSING SULFUR VAPOR DILUTED BY AN INERT GAS THROUGH THE BED TO REDUCE THE LATTER BACK TO UO2.

Recovery of Sulfur Dioxide from Waste Gases - Design of Scrubbers for Large Quantites of Gases

Recovery of Sulfur Dioxide from Waste Gases - Design of Scrubbers for Large Quantites of Gases

Recovery of Sulfur Dioxide from Waste Gases Distillation of a Three-Component System Ammonia-Sulfur Dioxide-Water

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRecovery of Sulfur Dioxide from Waste Gases Distillation of a Three-Component System Ammonia-Sulfur Dioxide-WaterH. F. Johnstone and D. B. KeyesCite this: Ind. Eng. Chem. 1935, 27, 6, 659–665Publication Date (Print):June 1, 1935Publication History Published online1 May 2002Published inissue 1 June 1935https://doi.org/10.1021/ie50306a014RIGHTS & PERMISSIONSArticle Views76Altmetric-Citations3LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (834 KB) Get e-Alerts

Recovery of Sulfur Dioxide as Dilute Sulfuric Acid

Recovery of Sulfur Dioxide as Dilute Sulfuric Acid