Techno-economic assessment of biodiesel derived from empty fruit bunch pyrolysis

Name: Rawinun Junsittiwate

LCSH: Kasetsart University -- Dissertations. Ph.D. (Chemical Engineering) 2022

Classification :.LCCS: TP359.B46

LCSH: Kasetsart University. -- Department of Chemical Engineering -- Dissertations

LCSH: Biodiesel fuels

LCSH: Oil palm -- Utilization

LCSH: Pyrolysis

LCSH: Heat exchangers

LCSH: Environmental impact analysis

Abstract: The palm empty fruit bunch (EFB) is a residue from oil pressing. This work simultaneously simulated a comprehensive pyrolysis process model, bio-oil upgrading plant, and electric power generation. This research is studied in several dimensions, including energy conservation, economic impact analysis, global warming impacts. Social impact; PM2.5, and employment, is analyzed to guide the best decision-making across various possible alternatives leading to the development of sustainable processes. This work applied the pyrolysis kinetic reaction model at 500 oC based on 1,000 tons/day of EFB. The results showed proper validation with the existing published work, in that 1 kg/s EFB could produce 0.21 kg/s gas, 0.67 kg/s bio-oil, and 0.11 kg/s char. Implementing a heat exchanger network (HEN) improves the minimum capital cost implication and maximum heat recovery. HEN implementation shows a cost reduction of 57.46%. The economic assumptions are estimated to be 10% of the annual discount rate for 20 years. According to economic analysis, the net present value, internal rate of return, and payback duration are 20,086,830.26 USD, 28.40%, and 5.62 years, respectively. Afterward, the central composite design (CCD) optimization was compared with the atom search optimization (ASO) algorithm. The optimum response biodiesel yield, CO2 emission, and NPV was obtained at 6,307.14 kg/hr, 34,290.20 kg/hr, and 25,288,074.25 USD, respectively. The performance of the ASO algorithms based on the optimization output compared well with that of the CCD.

Kasetsart University. Office of the University Library

Address: Bangkok

Email: tdckulib@ku.ac.th

Name: Rohitatisha Srinophakun

Role: Thesis Advisor

Created: 2022

Modified: 2025-07-15

Issued: 2025-07-15

วิทยานิพนธ์/Thesis

application/pdf

URL: https://www.lib.ku.ac.th/KUthesis/2565/rawinun-jun-all.pdf

CallNumber: TP359.B46 .R39

eng

DegreeName: Doctor of Philosophy

Level: Doctoral Degraee

Descipline: Chemical Engineering

Grantor: Kasetsart University

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