Paper details

Title:

Techno-economic Assessment of SNG-Ethanol Co-production (Bio SNG-Ethanol) via Thermochemical Conversion of Biomass by Indirectly Heated CFB gasifier

Author(s):

Reyes Valle, C., Haro, P., Villanueva Perales, A.L., Ollero, P., Caraballo, J., García Redondo, J.A., Arjona, R.

Document(s):

Abstract:

In last years the production of biofuels has generated a high interest because of governments’ actions to reduce fossil fuels consumption in transport and other uses. The aim of this work is the economic analysis of the co­production of synthetic natural gas (SNG) and bioethanol in a biorefinery context. Conceptual process design and techno­economic assessment of a plant size of 2140 dry tonne/day of wood chip (500 MWth) is presented. The proposed Bio SNG­Ethanol process involves biomass gasification (atmospheric indirectly heated CFB gasifier), gas cleaning and conditioning, ethanol synthesis (Rh­based catalyst), ethanol separation and dehydration, methanation (Haldor Topsoe TREMP®) and SNG conditioning. The Bio SNG­Ethanol process is rigorously modeled in a commercial chemical process simulator and the results from the simulations are used to estimate cost of production of synthetic natural gas and bioethanol. The results reveal that a minimum SNG selling price of 37.9 €2010/MWhSNG for a 10% rate of return when an ethanol market price of 0.48 €2010/L and a biomass price of 51 €2010/dry tonne are considered.

Keywords:

bioethanol, economical aspects, innovative concepts, synthetic natural gas (SNG), thermochemical conversion

Topic:

Processes for Fuels from Biomass

Subtopic:

Production and supply of second generation biofuels

Event:

19th European Biomass Conference and Exhibition

Session:

VP3.5.15

Pages:

2177 - 2180

ISBN-13:

978-88-89407-55-4

ISBN-10:

88-89407-55-7

Paper DOI:

10.5071/19thEUBCE2011-VP3.5.15

Price:

FREE