Title:
Energy and Exergy Analysis of Syngas Production via Biomass Gasification
Author(s):
Samavati, M., Nemanova, V., Santarelli, M., Martin, A.
Document(s):
Paper
Poster
Abstract:
An entrained gasification system for syngas production is modeled and analyzed. The system is capable of producing enough syngas for further production of 15 m3/h Fischer-Tropsch diesel which is suitable for independent medium scale renewable energy systems. The system is modeled using ASPEN Plus and analyzed considering energy and exergy aspects. The model includes all the required units to achieve desired properties of syngas such as air separation unit to provide pure oxygen as oxidant feed, water-gas shift reactor to achieve desired hydrogen to carbon monoxide ratio, and selexol unit for selective and bulk removal of H2S and CO2. Results showed that including all of these units in the analysis will result in system energy and exergy efficiencies as low as 53.4% and 48.9%, respectively. Also, it is shown that although methane content increases at elevated operating pressures, due to high gasification temperature it is still negligible compare to other elements of syngas. It is also shown that system will have its higher valuse of efficiency when operated at 6 bar. On the other hand temperature has not any major effect on total system performance due to several contradictory effects that eventually counterbalance each other.
Keywords:
efficiency, energy balance, syngas, entrained gasification, exergy balance
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Gasification for synthesis gas production
Event:
24th European Biomass Conference and Exhibition
Session:
2CV.3.51
Pages:
922 - 928
ISBN:
978-88-89407-165
Paper DOI:
10.5071/24thEUBCE2016-2CV.3.51
Price:
FREE
