Paper details

Title:

Combined Methanol and CHP Energy Production Derived from Biomass Wastes with Reduced Carbon

Author(s):

Kempegowda, R.S., Pannir Selvam, P.V., Skreiberg, Ø., Tran, K.-Q.

Document(s):

Abstract:

This paper presents process synthesis and economics of combined methanol and CHP (combined heat and power) energy production from crude biooil, waste glycerol produced in biodiesel factories and biomass wastes using integrated reactor design for hydrogen rich syngas. This new process consists of three process steps: a) Pyrolysis of organic waste material for producing biooil, char and pyrogas, (b) Steam assisted hydrogasification of the crude glycerol wastes, biooil mixed with pyrogas for hydrogen rich gas and (c) low temperature methanol synthesis process. The H2­rich gas remaining after methanol synthesis is recycled back to the pyrolysis reactor, the catalytic hydro­gasification process and the heat recovery boiler (HRSG). Recycling gas allows the methanol synthesis reactor to perform at a relatively lower pressure than conventionally while the plant still maintains a high methanol yield. The integrated hydrogasification reactor and energy recovery design process minimizes heat loss and increases the process thermal efficiency. The breakeven price of the Hbiomethanol process yields positive net financial NPV and IRR above 600 USD per tonne. The total capital cost for a small scale methanol plant of capacity 2 tonne per hour coupled to a 2 MWe power plant is estimated to be 170.5 million USD. The Hbiomethanol process can convert any condensed carbonaceous material and liquid wastes, to produce methanol and CHP.

Keywords:

charcoal, combined heat and power generation (CHP), hydrogasification, liquid wastes, biomethanol synthesis

Topic:

Biomass Conversion Technologies for Heating, Electricity and Chemicals                  

Subtopic:

Pyrolysis for power, CHP, polygeneration and chemicals

Event:

19th European Biomass Conference and Exhibition

Session:

VP2.5.24

Pages:

1701 - 1706

ISBN-13:

978-88-89407-55-4

ISBN-10:

88-89407-55-7

Paper DOI:

10.5071/19thEUBCE2011-VP2.5.24

Price:

FREE