Coupling hydrothermal liquefaction and aqueous phase reforming for integrated production of biocrude and renewable H ₂

Renewable alkanes by aqueous-phase reforming of biomass-derived oxygenates.

A clean stream of alkanes from renewable biomass resources is obtained through aqueous-phase reforming in a single reactor. Alkanes are produced from biomass-derived sorbitol through a bifunctional pathway (see scheme) that involves the dehydration of sorbitol on acid sites (SiO2/Al2O3) and hydrogenation of intermediates on a metal catalyst under a H2 atmosphere. Hydrogen is produced from sorbi...

Renewable Hydrogen Produced from Different Renewable Feedstock by Aqueous-Phase Reforming Process

Aqueous phase reforming (APR) of biomass derived feedstock producing hydrogen was reviewed. The APR process was discussed based on different feedstock categories such as sugars, polyols and ethanol. The mechanism of APR was analyzed referring to different structures of feedstock. The reaction pathways of APR were investigated. The usage of catalysts should be judged by feedstock on the requirem...

Production of hydrogen by aqueous-phase reforming of glycerol

Characterizing Semivolatile Organic Compounds of Biocrude from Hydrothermal Liquefaction of Biomass

Hydrothermal liquefaction of biomass produces a complex biocrude, which can be further upgraded to biofuel or chemicals, but there is a need for improved molecular understanding of product composition and reaction pathways. This study extensively characterizes semivolatile compounds in biocrudes from hydrothermal liquefaction (HTL) of microalgae (N. gaditana, C. vulgaris), macroalgae (L. hyperb...

Biomass-to-biocrude on a chip via hydrothermal liquefaction of algae.

Hydrothermal liquefaction uses high temperatures and pressures to break organic compounds into smaller fractions, and is considered the most promising method to convert wet microalgae feedstock to biofuel. Although, hydrothermal liquefaction of microalgae has received much attention, the specific roles of temperature, pressure, heating rate and reaction time remain unclear. We present a microfl...