THERMAL SCIENCE

International Scientific Journal

Chunhua Xin

,

Jinyu Zhao

,

Roger Ruan

,

Min M. Addy

,

Shiyu Liu

,

Dongyan Mu

ECONOMICAL FEASIBILITY OF BIO-OIL PRODUCTION FROM SEWAGE SLUDGE THROUGH PYROLYSIS

ABSTRACT
Pyrolysis can lower the environmental impacts and improve resource utilization. A multi-stage comprehensive assessment model was developed to assess the economic feasibility of sludge pyrolysis. The indicator of gross process yield was used to evaluate the energy conversion efficiency of the different pathways. A comprehensive technoeconomic analysis was used to quantify the technical and economic performance of the pathway through uniform monetary measurement standards. Sensitivity analysis was used to determine the uncertainty and risk. The pathway with the highest gross process yield was selected to assess the feasibility using comprehensive techno-economic analysis considering different value. The estimated break even selling price of bio-oil was very close to the average crude oil of recent five years when considering economic, social, and environmental value. The main key factors affecting the economics of system were crude oil price, bio-oil lower heating value, bio-oil yield, and energy consumption of the pyrolysis process.
KEYWORDS
multi-stage comprehensive assessment, energy conversion efficiency, techno-economic analysis, sensitivity analysis, sludge, pyrolysis
PAPER SUBMITTED: 2017-09-21
PAPER REVISED: 2017-11-21
PAPER ACCEPTED: 2017-11-22
PUBLISHED ONLINE: 2017-12-23
DOI REFERENCE: https://doi.org/10.2298/TSCI170921258X
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2018, VOLUME 22, ISSUE Supplement 2, PAGES [S459 - S467]
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Economical feasibility of bio-oil production from sewage sludge through pyrolysis

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence