Title:
Combined Optimization of Fast Pyrolysis and Catalytic Reforming of Pyrolysis Oil to Produce Renewable Syngas from Biomass Residues
Author(s):
Balegedde Ramachandran, R.P., Westerhof, R.J.M., van Rossum, G., van Swaaij, W.P.M., Brilman, D.W.F., Kersten, S.R.A.
Document(s):
Paper
Abstract:
We have proposed a concept that integrates two processes namely fast pyrolysis of biomass and catalytic steam reforming. The conversion route begins with the fast pyrolysis of biomass residue to produce intermediate liquid (pyrolysis oil) at the place where biomass is available in enormous amounts and transport the liquid to a central reforming unit where syngas can be produced while taking advantage of the existing infrastructure. To optimize both these processes some of the process parameters such as pyrolysis temperature, condenser temperature and steam reforming conditions such as S/C ratio, atomization and reforming temperature should be assessed and optimized. The present work focuses on testing pyrolysis oils obtained at different temperatures in an atomizer (evaporator) and steam reformer to assess the quality of the pyrolysis oil produced. Pyrolysis oil produced at different temperatures (360 and 480ºC) were gasified at ~830 ºC and steam reformed at ~ 800ºC separately. The carbon distribution from the gasification of oils to the products such as vapor, gas and char showed that low temperature pyrolysis oil (360 ºC) produced low amount of char (~2% against 4 and 5% on carbon basis) and high gas yield (~100% against 90 and 84%) when compared to high temperature pyrolysis oil respectively (480ºC). The steam reforming of the oils revealed that high temperature oils (480ºC) are more susceptible to carbon deposition on the catalyst. This work clearly demonstrates the added value of a combined optimization, where changes in the pyrolysis process yields more suitable oils for steam reforming.
Keywords:
pyrolysis oil, steam reforming, atomization
Topic:
Thermochemical conversion - Gasification for synthesis gas production
Subtopic:
Syngas production. Reaction and technologies
Event:
18th European Biomass Conference and Exhibition
Session:
OB4.3
Pages:
774 - 777
ISBN-13:
978-88-89407-56-1
ISBN-10:
88-89407-56-5
Paper DOI:
10.5071/18thEUBCE2010-OB4.3
Price:
FREE
