Title:
Co-Feeding of Natural Gas in Pyrolysis Plants Producing Biofuels - GHG Savings and Economic Impact
Author(s):
Haro, P., Cutz, L., Thunman, H., Johnsson, F.
Document(s):
Paper
Abstract:
A major limitation in pyrolysis of biomass is the upgrading of the liquid product (bio-oil) for meeting the requirement of subsequent use as transportation fuel. This paper proposes a process (the IH2 process) based on combined hydropyrolysis and hydroconversion for in-situ upgrading of the liquid fraction into transportation fuels. In the hydropyrolysis reactor biomass and hydrogen react producing a liquid product with very low oxygen content. Although the process concept has been demonstrated, the source of hydrogen is a weakness of the process. The techno-economic assessment of the IH2 process assumed the use of the gas stream from the hydropyrolysis (off-gas) as the source for hydrogen. This assumption should be feasible for an nth of a kind plant, but it is not suitable for a first-of-a-kind plant, where the technical limitations of off-gas reforming would increase the risk of investment. In this study, we analyze a modified IH2 process using co-feeding of natural gas for the installation of a first-of-a-kind plant in Europe. The results are favorable for the co-feeding of natural gas in hydropyrolysis plants.
Keywords:
hydrogen, pyrolysis, sustainability criteria, economical aspects
Topic:
Biomass Conversion Technologies for Intermediates, Liquid and Gaseous Fuels, Chemicals and Materials
Subtopic:
Pyrolysis and other biomass liquefaction technologies
Event:
22nd European Biomass Conference and Exhibition
Session:
3CV.2.15
Pages:
1145 - 1150
ISBN:
978-88-89407-52-3
Paper DOI:
10.5071/22ndEUBCE2014-3CV.2.15
Price:
FREE
