Technical and economic assessment of the pyrolysis and gasification integrated process for biomass conversion

Karittha Im-orb, Wisitsree Wiyaratn and Amornchai Arpornwichanop

Energy, 2018, vol. 153, issue C, 592-603

Abstract: The technical and economic prospects for synthesis gas production via an integrated biomass pyrolysis and gasification (IBPG) process are evaluated for the case where rice straw is a considered feedstock. Modeling of the integrated process is performed by using the Aspen Custom Modeler program. The simulation results show that the production rates of synthesis gas and bio-oil derived from an IBPG process increase as pyrolysis temperature increases, due to the increased volatiles. Compared to a conventional biomass gasification, IBPG provides additional bio-oil as a valued by-product, releases less waste heat and offers higher energy efficiency at the same synthesis gas production rate. The IBPG process with a pyrolysis temperature of 700 °C shows the best technical performance. However, pinch analysis indicates that the IBPG process with a pyrolysis temperature of 400 °C or 500 °C and conventional biomass gasification is technically feasible; the optimum heat integration structures are achieved. The economic analysis, which considers only the reaction-related equipment, indicates that the IBPG process with a pyrolysis temperature of 500 °C offers synthesis gas and bio-oil production rates of 1.185 and 0.2044 kmol h−1, respectively, and an energy efficiency of 68.86% is most economically feasible.

Keywords: Gasification; Pyrolysis; Integration; Synthesis gas; Bio-oil; Process analysis (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (9)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544218306558
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:153:y:2018:i:c:p:592-603

DOI: 10.1016/j.energy.2018.04.049

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().