Journal ArticleDOI
Investigation of the Effects of Molecular Structure on Oxygenated Hydrocarbon Steam Re-forming
Xun Hu,Gongxuan Lu +1 more
TLDR
In this article, the effects of molecular structure on the catalytic behavior of bio-oil components in the steam-reforming reactions were presented, showing that an increased number of hydroxyl groups suppressed the generation of CH4 while promoting the production of CO and coke deposits.Abstract:
This paper presents the effects of molecular structure on the catalytic behavior of bio-oil components in the steam-re-forming reactions. Methanol, ethanol, 1-propanol, butanol, 2-propanol, 1,2-propanediol, glycerol, propionaldehyde, acetone, and propionic acid were used as model compounds. Steam re-forming of the alcohols with a long carbon chain was relatively difficult and yielded large amounts of CH4 and coke deposits. An increased number of hydroxyl groups in the alcohols suppressed the generation of CH4 while promoting the production of CO and coke deposits. Furthermore, the location of the hydroxyl group also impacted both the product distribution and carbon deposition in the re-forming process. The type of functional group significantly affected steam re-forming as well. Alcohol steam re-forming tended to produce a significant amount of CH4, while aldehyde (propionaldehyde) steam re-forming produced only small amounts of CH4 and other organic byproducts. Severe coke deposition was encountered in t...read more
Citations
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Journal ArticleDOI
Biomass pyrolysis: A review of the process development and challenges from initial researches up to the commercialisation stage
Xun Hu,Mortaza Gholizadeh +1 more
TL;DR: In this article, a review of various pyrolysis process, especially focusing on the effects of essential parameters, the process design, the reactors and the catalysts on the process, is presented.
Journal ArticleDOI
Comparative study of alumina-supported transition metal catalysts for hydrogen generation by steam reforming of acetic acid
Xun Hu,Gongxuan Lu +1 more
TL;DR: In this paper, the reaction of acetic acid steam reforming for H 2 production has been investigated over transition metal catalysts (Ni, Co, Fe or Cu)/Al 2 O 3.
Journal ArticleDOI
Progress of the applications of bio-oil
Xun Hu,Mortaza Gholizadeh +1 more
TL;DR: In this paper, the progress of bio-oil as the feedstock for the use as boiler, heavy-duty engine fuel, or for the production biofuel, hydrogen, chemicals, carbonaceous materials, binder for electrode and asphalt, pesticide and fertilizer, polyurethane foam and plastics.
Journal ArticleDOI
Butanol production from lignocellulosics
German Jurgens,Shrikant A. Survase,Oxana Berezina,Evangelos Sklavounos,Juha Linnekoski,Antti Kurkijärvi,Minna Väkevä,Adriaan van Heiningen,Adriaan van Heiningen,Tom Granström +9 more
TL;DR: The use of lignocellulosic feedstocks, bioprocess and metabolic engineering, downstream processing and catalytic refining of n-butanol are described.
Journal ArticleDOI
Glycerol Steam Reforming over Bimetallic Co−Ni/Al2O3
TL;DR: Glycerol steam reforming has been performed in a fixed-bed microreactor containing bimetallic Co−Ni/Al2O3 catalyst using a wide range of steam-to-glycerol ratios (3 ≤ STGR ≤ 12) for reaction temperatures between 773 and 823 K at atmospheric pressure as discussed by the authors.
References
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Journal ArticleDOI
A review on reforming bio-ethanol for hydrogen production
TL;DR: In this paper, the authors proposed the development of bimetallic catalysts, alloy catalysts and double-bed reactors to enhance hydrogen production and long-term catalysts stability.
Journal ArticleDOI
A review of catalytic issues and process conditions for renewable hydrogen and alkanes by aqueous-phase reforming of oxygenated hydrocarbons over supported metal catalysts
TL;DR: In this article, a single-step, low-temperature process for the catalytic production of fuels, such as hydrogen and/or alkanes, from renewable biomass-derived oxygenated hydrocarbons is presented.
Journal ArticleDOI
New catalytic routes for syngas and hydrogen production
TL;DR: In this paper, a review summarizes different catalytic options for the production of syngas and hydrogen starting from simple hydrogen-containing molecules, focusing on new direct catalytic alternatives in natural gas conversion.
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Catalysts for the control of coking during steam reforming
TL;DR: The mechanism of coke formation is reviewed and different approaches to control coking are discussed in this paper, where an ensemble size control produced by adsorbing controlled amounts of sulphur on the nickel surface has been found to be very effective at controlling coking.
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Catalytic steam reforming of bio-oils for the production of hydrogen: effects of catalyst composition
TL;DR: In this paper, a fraction of bio-oil, generated from fast pyrolysis, was catalytically steam reformed at 825 and 875°C, high space velocity (up to 126,000h−1) and low residence time (26 ms) using a fixed-bed micro-reactor interfaced with a molecular beam mass spectrometer.