Abstract
This paper demonstrates an RF thermal plasma pyrolysis reaction apparatus that achieves 89 wt.% reaction conversion yield with no tar content. The demonstrated experimental apparatus consists of a 1100 W RFVII Inc. (104 Church St, Newfield, NJ 08344, United States) @ 13.56 MHz RF thermal plasma generator, a Navio matching network, intelligent feedback controller, and an 8-turn copper RF-ICP torch embedded in a 12 L thermochemical reactor. The intelligent feedback controller optimizes the thermal performance based on feedback signals from three online gas analyzers: CO, CO2 and NOx. The feedback controller output signal controls the RF thermal plasma torch current that provides real-time temperature control. The proposed reaction system achieves precise temperature profiles for both pyrolysis and gasification as well as increases end-product yield and eliminates undesired products such as tar and char. The identified hydrocarbon liquid mixture is 90 wt.% gasoline and 10 wt.%. diesel. The 8-turn RF-ICP thermal plasma torch has an average heating rate of +35 °C/min and a maximum operating temperature of 2000 °C and is able to sustain stable flame for more than 30 min. The reaction operating parameters are (550–990 °C τ = 30 min for pyrolysis and (1300 °C τ = 1 sec) for the gasification process. The identified hydrocarbon liquid products are 90 wt.% of a n-butyl-benzene (C6H5C4H9) and oluene (C7H8) mixture with less than 10 wt.% decane diesel fuel (C10 H22). Comsol simulation is used to assess the RF-ICP thermal plasma torch’s thermal performance.
Highlights
Global municipal solid waste (MSW) generation exceeds 2.01 billion tons per annum while untreated global solid waste depositions are expected to reach 27 billion tons by 2050 [1,2]
Non-hazardous annual solid waste generation is estimated at 25 million metric tons per annum and is considered a main source of greenhouse gas emissions in the waste management sector [3,4]
Thermal plasma is under a local partial thermodynamic equilibrium (LTE); Plasma is considered a conductive fluid mixture and is modelled using magnetohydrodynamics (MHD) equations; The thermal plasma jet is axisymmetric, optically thin, and at a local thermodynamic equilibrium; The gaseous velocity is constant at laminar flow with no tangential components; The displacement current and electrostatic fields are neglected
Summary
Global municipal solid waste (MSW) generation exceeds 2.01 billion tons per annum while untreated global solid waste depositions are expected to reach 27 billion tons by 2050 [1,2]. In. Canada, non-hazardous annual solid waste generation is estimated at 25 million metric tons per annum and is considered a main source of greenhouse gas emissions in the waste management sector [3,4]. Processes 2020, 8, 281 for solid waste deposits with negligible greenhouse gas emissions. Processes 2019, 7, x FOR PEER REVIEW are only seven municipal incineration sites in Canada processing 763,000 tons/annum of MSW using. There are only seven municipal and incineration sitesheaters in Canada processing. The unsorted of MSW using conventional thermal methods such as furnaces and fired gas heaters [8,9]. 40 MJ/kghas [8,10]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
