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p-Index From 2021 - 2026
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All Journal Journal Majelis Paspama
Nnadikwe Johnson
Centre For Gas Refining And Petrochemical Engineering, University of Port-Harcourt, Rivers State Nigeria
Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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An Examination of Non-Traditional Approaches to Liquefying Natural Gas Onuoha Fidelis Wopara; Nnadikwe Johnson
Journal Majelis Paspama Vol. 4 No. 02 (2026): Journal Majelis Paspama, 2026, inpres
Publisher : Journal Majelis Paspama

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Abstract

Liquefied natural gas (LNG) plays a vital role in the energy industry due to its high energy density, low carbon footprint, and ease of transportation. The emergence of unconventional natural gas resources is reshaping the LNG landscape, requiring specialized liquefaction approaches. This review examines non-traditional approaches to liquefying natural gas, focusing on coalbed methane, synthetic natural gas, LNG-FPSO, and pressurized liquefied natural gas (PLNG). We analyze the unique characteristics and challenges of these processes, highlighting recent advancements in design and optimization. Coalbed methane liquefaction, for instance, requires efficient methane separation and oxygen removal techniques. Synthetic natural gas liquefaction involves optimizing methanation reactions and integrating with existing infrastructure. LNG-FPSO technology addresses space constraints and sloshing conditions on offshore platforms. PLNG offers a compact solution with pressurized storage, enhancing CO2 solubility and reducing equipment footprint. The shift towards unconventional gas sources demands innovative liquefaction solutions. Key areas of development include advanced separation technologies, compact and safe process designs, and enhanced heat transfer mechanisms.
Sustainable Profitability Analysis of Natural Gas-Based Methanol Production Onuoha Fidelis Wopara; Nnadikwe Johnson
Journal Majelis Paspama Vol. 4 No. 02 (2026): Journal Majelis Paspama, 2026, inpres
Publisher : Journal Majelis Paspama

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Methanol production from natural gas is gaining traction as a sustainable alternative to conventional fuels. This paper presents an economic analysis and design of large-scale methanol production, optimizing synthesis gas composition (CO/CO₂ ratio) for enhanced yield. A Maximum Energy Recovery (MER) heat exchanger network reduces operational costs, achieving a break-even point of 2.69 years. Key results include: production capacity meeting ~1% of global demand, total operating cost optimized at 4× raw materials cost, and a fixed-tube sheet heat exchanger (22.54 m²) selected for low-temperature heat exchange. Sensitivity analyses demonstrate robustness against natural gas price fluctuations and methanol market trends, underscoring the process's economic viability and environmental sustainability.
Co-Authors Onuoha Fidelis Wopara