Advances in Supercritical Water Gasification

Dear Colleagues,

The production of hydrogen from wet biomass or organic wastewaters by means of supercritical water gasification (SCWG) has attracted a great deal of interest from the scientific community over the past decade. The eventual commercialization of SCWG processes would represent a great success with regards to the promotion of new and sustainable sources of energy worldwide. As a result, apart from numerous research papers, dozens of patents related to SCWG were published in the period from 2007 to 2019. The considerable potential advantages of this process, as well as the constrains associated with its demanding operating conditions, clearly justify and support further research studies if we are to move forward in all aspects that are less well-known to us at present. New proposals and definite data are needed regarding kinetics, mechanisms, simulations, effective use of catalysts, and new reactor building materials. Also, further studies are required to consolidate its combined use with other technologies or its integration in biorefineries, either for product separation or for economic analysis.

I would like to invite all researchers that have played a role in the development of SCWG technology through previous publications to submit their contributions to this Special Issue of ChemEngineering. We will certainly be grateful for your help to update the knowledge on any of the aspects dealt with in this Issue. Everyone related to this area of expertise will gratefully welcome your valuable contributions.

Prof. Dr. Juan Ramón Portela Miguelez
Guest Editor

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• supercritical water gasification
• hydrogen production
• wet biomass
• organic wastewaters
• waste valorization
• kinetics
• simulation
• biorefinery