THERMAL SCIENCE

International Scientific Journal

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
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]
REFERENCES
  1. Anjum M, et al., Wastewater sludge stabilization using pre-treatment methods, Process Saf Environ Prot, 102(2016), pp. 615-632
  2. Samolada, M.C., Zabaniotou, A.A., Comparative assessment of municipal sewage sludge incineration, gasification and pyrolysis for a sustainable sludge-to-energy management in Greece, Waste management, 34(2014), 2, pp.411-420.
  3. Cao Y, Pawłowski A, Sewage sludge-to-energy approaches based on anaerobic digestion and pyrolysis: Brief overview and energy efficiency assessment, Renew Sust Energ Rev, 16(2012), 3 pp.1657-1665
  4. Jin, J., et al., Influence of pyrolysis temperature on properties and environmental safety of heavy metals in biochars derived from municipal sewage sludge, Journal of hazardous materials, 320(2016), pp. 417-426.
  5. Ma, W., et al., Supercritical water pyrolysis of sewage sludge, Waste management, 59(2017), pp.371-378.
  6. Chang, F., et al., Pilot-scale pyrolysis experiment of municipal sludge and operational effectiveness evaluation, Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 38(2016), 4, pp.472-477.
  7. Capodaglio AG, Callegari A. Feedstock and process influence on biodiesel produced from waste sewage sludge, Journal of Environmental Management, 2017.
  8. Kim, Y., Parker, W., A technical and economic evaluation of the pyrolysis of sewage sludge for the production of bio-oil, Bioresource technology, 99(2008),5, pp.1409-1416.
  9. Anex, R. P., et al., Techno-economic comparison of biomass-to-transportation fuels via pyrolysis, gasification, and biochemical pathways, Fuel, 89(2010), pp. S29-S35.
  10. Karagiannidis, A., Perkoulidis, G., A multi-criteria ranking of different technologies for the anaerobic digestion for energy recovery of the organic fraction of municipal solid wastes, Bioresource technology, 100 (2009), pp. 2355-2360.
  11. An D, et al., Multi-criteria sustainability assessment of urban sludge treatment technologies: Method and case study, Resources Conservation & Recycling, 2016.
  12. Ren, J., et al., Urban sewage sludge, sustainability, and transition for Eco-City: Multi-criteria sustainability assessment of technologies based on best-worst method, Technological Forecasting and Social Change, 116(2017), pp. 29-39.
  13. Levac, M., et al., Three-Dimensional Analysis of Fluid Flow and Heat Transfer in Single-and-Two-Layered Micro-Channel Heat Sinks, Heat Mass Transfer, 47 (2011), pp. 1375-1383.
  14. Wang, L., et al., Hydrothermal treatment coupled with mechanical expression at increased temperature for excess sludge dewatering: Influence of operating conditions and the process energetics, Water research, 65(2014), 85-97.
  15. Orfield, N.D., et al., A GIS based national assessment of algal bio-oil production potential through flue gas and wastewater co-utilization, Biomass and Bioenergy, 63(2014), pp. 76-85.
  16. Xin, C., et al., Comprehensive techno-economic analysis of wastewater-based algal biofuel production: A case study. Bioresource technology, 211(2016), pp. 584-593.

© 2018 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, 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