An overview of aqueous-phase catalytic processes for production of hydrogen and alkanes in a biorefinery

TL;DR: In this article, a review of the available technologies and recent developments in biomass conversion to hydrogen is presented, where hydrogen production from biomass is discussed as a two-stage process, in the first stage raw biomass is converted to hydrogen substrate in either gas, liquid or solid phase.

TL;DR: In this paper, the authors acknowledge financial support from the Spanish Government-MINECO through "Severo Ochoa" (SEV 2012-0267) and the European Union for SynCatMatch project (ERC-AdG-2014-671093).

TL;DR: In this paper, a review of the thermochemical, biological, and electrochemical approaches used for biomass-to-hydrogen production is presented, and a techno-economic assessment is also established based on the production cost, technology readiness level, and industrial scalability.

TL;DR: In this paper , the authors reviewed 400+ articles and summarised hydrogen production processes, storage options, production costs and applications, and provided a synthesis of key information and deep analysis of limitations of existing studies followed by deep discussion on the challenges of hydrogen as energy carrier for future.

TL;DR: This paper reviews process parameters and their fundamental modes of action for promising pretreatment methods and concludes that pretreatment processing conditions must be tailored to the specific chemical and structural composition of the various, and variable, sources of lignocellulosic biomass.

TL;DR: Simultaneous saccharification and fermentation effectively removes glucose, which is an inhibitor to cellulase activity, thus increasing the yield and rate of cellulose hydrolysis, thereby increasing the cost of ethanol production from lignocellulosic materials.

TL;DR: In this article, the transesterification reaction is aected by molar ratio of glycerides to alcohol, catalysts, reaction temperature, reaction time and free fatty acids and water content of oils or fats.

TL;DR: It is demonstrated that hydrogen can be produced from sugars and alcohols at temperatures near 500 K in a single-reactor aqueous-phase reforming process using a platinum-based catalyst, and the findings suggest that catalytic aqueus phase reforming might prove useful for the generation of hydrogen-rich fuel gas from carbohydrates extracted from renewable biomass and biomass waste streams.