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Techno‐Economic Evaluation of Photocatalytic H 2 S Splitting
Author(s) -
Oladipo Habeebllah,
Yusuf Ahmed,
Al-Ali Khalid,
Palmisano Giovanni
Publication year - 2021
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.202100163
Subject(s) - operating expense , capital expenditure , cost of electricity by source , capital cost , operating cost , hydrogen production , process engineering , hydrogen , production (economics) , waste management , environmental science , engineering , environmental engineering , chemistry , economics , electrical engineering , finance , physics , power (physics) , organic chemistry , electricity generation , quantum mechanics , macroeconomics
The removal of the noxious H 2 S from natural gas remains a challenging task in the oil and gas industry. Different H 2 S splitting technologies are proposed and investigated based on the techno‐economic analysis. Herein, the photocatalysis route for H 2 S splitting represents a potential technology that is not yet fully analyzed. The present study reports a techno‐economic analysis of hydrogen production from H 2 S via photocatalysis. Guided by the previous experimental result on H 2 S splitting, Aspen Plus software is used to design and simulate the proposed plant. An economic analysis is performed with CapCost software to estimate the plant capital expenditure (CAPEX) and operational expenditure (OPEX) and the cost of hydrogen production. At 0.485 t H 2 per h, the process CAPEX is about 105 M$, and OPEX is 143 M$ per year. At a levelized cost of hydrogen (LCOH) production of 1860 $ per t H 2 , the proposed plant will be able to break even at the end of the plant life. Sensitivity analysis reveals that the process OPEX and price of hydrogen are strongly dependent on the cost of aqueous NaOH. These findings are potentially useful for oil and gas industries looking to incorporate an emerging technology like the presented one in refineries.