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Microwave-assisted co-gasification of mixed plastics and corn stover: A synergistic approach to produce clean hydrogen

Journal Article · · Energy Conversion and Management
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  1. National Energy Technology Lab. (NETL), Morgantown, WV (United States)
Co-gasification of waste plastic and corn stover into hydrogen is an effective way of reducing hydrogen cost and carbon footprint. However, current gasification technologies are energy intensive and cannot accommodate flexible feedstock. Microwave gasification offers several advantages including higher H2 yield and enhanced selectivity to syngas over tars. Herein this work presents parametric optimization study of microwave co-gasification of mixed plastics and corn stover for hydrogen-rich syngas. High hydrogen yields of 30.5 mmolH2/gfeed at 700 °C were obtained using a microwave reactor, as opposed to 0.9 mmolH2/gfeed at 700-950 °C with conventional heating. Hydrogen yields are >98% of the theoretical extractable hydrogen from feedstock. Microwaves enhanced plastic and corn stover synergy and reduced tar yields. H-poor carbon formation resulting from the dehydrogenation of tar and coke, and light olefins decomposition, triggered by the external microwave electric fields, allowed further cracking of intermediate hydrocarbons to produce additional H2.
Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Organization:
USDOE; USDOE Office of Fossil Energy (FE)
Grant/Contract Number:
89243318CFE000003
OSTI ID:
1984046
Alternate ID(s):
OSTI ID: 1957864
Journal Information:
Energy Conversion and Management, Journal Name: Energy Conversion and Management Vol. 280; ISSN 0196-8904
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (33)

Chemical Recycling of Mixed Plastic Wastes by Pyrolysis – Pilot Scale Investigations journal August 2021
Chemical Recycling of Plastics by Microwave‐Assisted High‐Temperature Pyrolysis journal April 2020
A TGA study of CO2 gasification reaction of various types of coal and biomass journal July 2016
Co-pyrogasification of Plastics and Biomass, a Review journal February 2018
Pyrolysis field ionization mass spectrometry of polyolefins journal February 1995
Co-gasification study of biomass mixed with plastic wastes journal February 2002
Thermal decomposition of polypropylene in the presence of wood-derived materials journal November 2000
Synergistic effects in steam gasification of combined biomass and plastic waste mixtures journal February 2018
Syngas production from biomass pyrolysis in a continuous microwave assisted pyrolysis system journal October 2020
Recovery of renewable aromatic and aliphatic hydrocarbon resources from microwave pyrolysis/co-pyrolysis of agro-residues and plastics wastes journal December 2020
Microwave-assisted conversion of methane over H-(Fe)-ZSM-5: Evidence for formation of hot metal sites journal September 2021
A combined experimental and modeling study of Microwave-assisted methane dehydroaromatization process journal April 2022
Pyrolysis of energy cane bagasse and invasive Chinese tallow tree ( Triadica sebifera L .) biomass in an inductively heated reactor journal February 2016
A review on pyrolysis of plastic wastes journal May 2016
A critical comparison of pyrolysis of cellulose, lignin, and pine sawdust using an induction heating reactor journal June 2016
Hydrogen production from biomass gasification; a theoretical comparison of using different gasification agents journal March 2018
Co-pyrolysis of biomass and waste plastics as a thermochemical conversion technology for high-grade biofuel production: Recent progress and future directions elsewhere worldwide journal May 2018
Rapid microwave-assisted biomass delignification and lignin depolymerization in deep eutectic solvents journal September 2019
Co-gasification of Colombian coal and biomass in fluidized bed: An experimental study journal March 2009
Microwave-assisted pyrolysis of Mississippi coal: A comparative study with conventional pyrolysis journal April 2018
Insights into the synergetic effect for co-pyrolysis of oil sands and biomass using microwave irradiation journal March 2019
Comparative evaluation of microwave and conventional gasification of different coal types: Experimental reaction studies journal August 2022
Microwave-assisted co-pyrolysis of microwave torrefied biomass with waste plastics using ZSM-5 as a catalyst for high quality bio-oil journal September 2018
Microwave Assisted Pyrolysis of Plastic Waste journal January 2016
Effect of Microwave and Thermal Co-pyrolysis of Low-Rank Coal and Pine Wood on Product Distributions and Char Structure journal July 2019
Evidence of Self-Gasification during the Microwave-Induced Pyrolysis of Coffee Hulls journal January 2007
Microwave-Specific Enhancement of the Carbon–Carbon Dioxide (Boudouard) Reaction journal November 2013
Microwave-initiated catalytic deconstruction of plastic waste into hydrogen and high-value carbons journal October 2020
Microwave-assisted heterogeneous catalysis book June 2021
The future of plastics recycling journal November 2017
Dielectric Properties of Biomass/Biochar Mixtures at Microwave Frequencies journal April 2017
Pyrolysis of Mixed Plastic Waste: I. Kinetic Study journal October 2020
Catalytic Fast Pyrolysis of Poly (Ethylene Terephthalate) (PET) with Zeolite and Nickel Chloride journal March 2020

Figures / Tables (9)