Pimenidou, P, Rickett, G, Dupont, V et al. (1 more author) (2010) High purity H2 by sorption-enhanced chemical looping reforming of waste cooking oil in a packed bed reactor. Bioresource Technology, 101 (23). 9279 - 9286. ISSN 0960-8524
Abstract
High purity hydrogen (>95%) was produced at 600 degrees C and 1 atm by steam reforming of waste cooking oil at a molar steam to carbon ratio of 4 using chemical looping, a process that features redox cycles of a Ni catalyst with the in-situ carbonation/calcination of a CO(2) sorbent (dolomite) in a packed bed reactor under alternated feedstreams of fuel-steam and air. The fuel and steam conversion were higher with the sorbent present than without it. Initially, the dolomite carbonation was very efficient (100%), and 98% purity hydrogen was produced, but the carbonation decreased to around 56% with a purity of 95% respectively in the following cycles. Reduction of the nickel catalyst occurred alongside steam reforming, water gas shift and carbonation, with H(2) produced continuously under fuel-steam feeds. Catalyst and CO(2)-sorbent regeneration was observed, and long periods of autothermal operation within each cycle were demonstrated.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | (c) 2010, Elsevier. This is an author produced version of a paper published in / accepted for publication in Bioresource Technology. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Adsorption; Biotechnology; Carbon Dioxide; Carbon Monoxide; Cooking; Hydrogen; Nickel; Nitrogen; Oils; Oxidation-Reduction; Steam; Thermodynamics; Waste Products |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) > Energy Research Institute (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 12 Jul 2013 10:00 |
Last Modified: | 29 Mar 2018 17:20 |
Published Version: | http://dx.doi.org/10.1016/j.biortech.2010.06.079 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.biortech.2010.06.079 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:75971 |