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Comparison of steam reforming and partial oxidation of biomass pyrolysis tars over activated carbon derived from waste tire

Paper ID Volume ID Publish Year Pages File Format Full-Text
55341 47048 2012 8 PDF Available
Title
Comparison of steam reforming and partial oxidation of biomass pyrolysis tars over activated carbon derived from waste tire
Abstract

The main objective of this work was to analyze catalytic tar destruction in order to compare the performance of two thermochemical processes, partial oxidation and steam reforming. Activated carbon, derived from char obtained in fast pyrolysis of waste tires, was used as a catalyst. The efficiency of this catalyst was analyzed with respect to its ability to decompose tar-forming hydrocarbons at high temperatures, and the optimal conditions of the process were determined.Results of catalytic steam reforming and partial oxidation of real tars from biomass pyrolysis are presented in this article. Tar destruction was performed in a fixed bed reactor at temperatures from 700 °C to 900 °C, with the steam-to-carbon ratio (H2O/C) from 0 to 1, air equivalence ratio (ER) from 0 to 0.5 at a constant space velocity and the initial concentration of tars 21.1 ± 1.89 g/m3. The thermal destruction of tars was found to be most intensive in terms of both tar destruction and hydrogen gas production when using steam reforming at 900 °C and H2O/C = 1. Under these conditions, an almost complete conversion of tars was achieved, with benzene as the only remainder at a concentration of 0.019 g/m3.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (99 K)Download as PowerPoint slideHighlights► The catalytic tar destruction in order to compare the performance of two thermochemical processes, namely partial oxidation and steam reforming was examined. ► As a catalyst activated carbon derived from char obtained in fast pyrolysis of waste tires was used. ► Thermal destruction of tars is most intensive in both tar destruction and hydrogen gas production using steam reforming at 900 °C and H2O/C = 1. ► Almost complete conversion of tars was achieved with benzene at concentration of 0.019 g/m3 as the only remainder.

Keywords
Biomass; Activated carbon; Steam reforming; Partial oxidation; Tar removal
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Comparison of steam reforming and partial oxidation of biomass pyrolysis tars over activated carbon derived from waste tire
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 196, Issue 1, 30 November 2012, Pages 67–74
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us