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Hydrogen‐Rich Syngas Production by DC Thermal Plasma Steam Gasification from Biomass and Plastic Mixtures

Hydrogen‐Rich Syngas Production by DC Thermal Plasma Steam Gasification from Biomass and Plastic... Recently, thermal plasma gasification has attracted much attention due to hydrogen‐rich syngas production. In this research, wood sawdust and high density polyethylene (HDPE) mixtures have been investigated under plasma steam gasification with various HDPE contents (0–100%), at different input plasma powers (16–24 kW) and varying steam flow/carbon flow (S/C) ratios (0.2–1.8). The single‐factor analysis indicates that the real H2 yield at 80 wt% HDPE is 23.99% higher than the theoretically calculated results. This significant improvement in hydrogen yield confirms the synergetic gasification effects between HDPE and biomass. The yield and proportion of H2 show a climbing trend with the increase of input power, while showing a trend from rising to descending with the increase of S/C ratio. Under the optimal conditions (the HDPE ratio of 80%, the input power of 22 kW, the S/C ratio of 1.0), the H2 yield is as high as 78.55 mol kg−1 and the proportion of H2 in syngas reaches 66.91%. Redundancy analysis shows that the HDPE content, input power and S/C ratio can explain 39.8%, 12.4%, and 10.6% of the variations of syngas properties respectively. The input power has the largest correlation with the increase of H2 yield among these three factors. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advanced Sustainable Systems Wiley

Hydrogen‐Rich Syngas Production by DC Thermal Plasma Steam Gasification from Biomass and Plastic Mixtures

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References (22)

Publisher
Wiley
Copyright
© 2020 Wiley‐VCH GmbH
eISSN
2366-7486
DOI
10.1002/adsu.202000026
Publisher site
See Article on Publisher Site

Abstract

Recently, thermal plasma gasification has attracted much attention due to hydrogen‐rich syngas production. In this research, wood sawdust and high density polyethylene (HDPE) mixtures have been investigated under plasma steam gasification with various HDPE contents (0–100%), at different input plasma powers (16–24 kW) and varying steam flow/carbon flow (S/C) ratios (0.2–1.8). The single‐factor analysis indicates that the real H2 yield at 80 wt% HDPE is 23.99% higher than the theoretically calculated results. This significant improvement in hydrogen yield confirms the synergetic gasification effects between HDPE and biomass. The yield and proportion of H2 show a climbing trend with the increase of input power, while showing a trend from rising to descending with the increase of S/C ratio. Under the optimal conditions (the HDPE ratio of 80%, the input power of 22 kW, the S/C ratio of 1.0), the H2 yield is as high as 78.55 mol kg−1 and the proportion of H2 in syngas reaches 66.91%. Redundancy analysis shows that the HDPE content, input power and S/C ratio can explain 39.8%, 12.4%, and 10.6% of the variations of syngas properties respectively. The input power has the largest correlation with the increase of H2 yield among these three factors.

Journal

Advanced Sustainable SystemsWiley

Published: Oct 1, 2020

Keywords: ; ; ; ;

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