Process design, exergy, and economic assessment of a conceptual mobile autothermal methane pyrolysis unit for onsite hydrogen production
Por:
Tabat, Meshach E., Omoarukhe, Fredrick O., Gulec, Fatih, Adeniyi, Dare E., Mukherjee, Alivia, Okoye, Patrick U., Ogbaga, Chukwuma C., Epelle, Emmanuel I., Akande, Olugbenga, Okolie, Jude A.
Publicada:
15 feb 2023
Resumen:
The present study proposes a conceptual mobile autothermal methane
pyrolysis unit for onsite hydrogen production. Considering the shortage
of hydrogen pipeline infrastructure between production plants and
fuelling stations in most places where hydrogen is required, it is
imperative to create alternative hydrogen production means. The design
combines a catalytic plasma methane pyrolysis unit with a steam char
gasification setup, combustion, and biomethanation unit for hydrogen
production. The reactor design includes Ni - Br in a bubble column
acting as a catalyst. Energy and exergy calculations followed by a
comprehensive economic analysis were appraised to evaluate the
efficiency and performance of the integrated process. The levelized cost
of hydrogen (LCOH) from the conceptual design ranged from 1.3 to 1.47
U.S.$/kg, while the proposed design's net present value (NPV) was in
the range of 3.76 - 4.35 M.U.S.$. Factors such as equipment purchase
cost (EPC) and feedstock cost significantly influenced the NPV and LCOH.
In addition, a positive NPV and lower LCOH outline the proposed design's
profitability. Finally, an optimized methane conversion of 76.8 % was
obtained from the study.
Filiaciones:
Univ Appl Sci Bremerhaven, Proc Engn & Energy Technol, Bremerhaven, Germany
Univ Ilorin, Dept Chem Engn, PMB 1515, Ilorin, Nigeria
Univ Nottingham, Low Carbon Energy & Resources Technol Res Grp, Fac Engn, Nottingham NG7 2RD, England
Univ Ilorin, Dept Mech Engn, Ilorin, Nigeria
Univ Alberta, Dept Mech Engn, Edmonton, AB, Canada
UNAM, Inst Energias Renovables IER, Privada Xochicalco S-N Col Ctr, Temixco, Morelos 62580, Mexico
Nile Univ Nigeria, Dept Biol Sci, Airport Rd, Abuja, Nigeria
Nile Univ Nigeria, Dept Microbiol & Biotechnol, Airport Rd, Abuja, Nigeria
Univ West Scotland, Sch Comp Engn & Phys Sci, Paisley PA1 2BE, Scotland
Handong Global Univ, Dept Adv Convergence, 558 Handong Ro, Pohang 37554, Gyeongsangbuk D, South Korea
Univ Oklahoma, Gallogly Coll Engn, Norman, OK USA
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