Techno‐Economic‐Environmental Assessment of Pyrolysis‐Based Power Production From Methane
メタンからの熱分解ベース発電の技術・経済・環境評価 (AI 翻訳)
Muhammad Jalili Zarabadi, S. Karuturi
🤖 gxceed AI 要約
日本語
メタン熱分解を用いた低炭素発電システムを評価。従来の天然ガス複合サイクルと比較し、CO2排出量を約54%削減可能だが、発電コストが上昇する。炭素税や固体炭素の価格設定によりコスト競争力が向上する可能性を示した。
English
This study assesses a pyrolysis-based combined cycle for low-carbon power generation from methane. Compared to conventional natural gas combined cycle, it achieves ~54% CO2 reduction but at higher electricity cost. Carbon pricing or valorization of solid carbon byproducts could achieve cost parity.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本のガス火力発電の脱炭素化オプションとして、メタン熱分解の可能性を示す。水素製造と固体炭素の活用が鍵となるが、現状の炭素価格ではコスト課題が大きく、政策支援が必要。
In the global GX context
This paper provides a systems-level assessment of methane pyrolysis for power generation, relevant for global gas-fired fleets seeking deep decarbonization. It highlights trade-offs between efficiency and emissions reduction, and the role of carbon pricing in enabling this technology.
👥 読者別の含意
🔬研究者:Provides a detailed techno-economic model of a pyrolysis-based combined cycle and benchmarks against conventional systems, useful for energy system modeling.
🏢実務担当者:Offers insights on cost and performance parameters for evaluating pyrolysis as a decarbonization option for gas power plants.
🏛政策担当者:Demonstrates the carbon price level needed to make pyrolysis-based power competitive, informing carbon pricing and clean energy policy design.
📄 Abstract（原文）
Methane pyrolysis enables low‐carbon power generation by converting natural gas into hydrogen and solid carbon without direct carbon dioxide formation. This study presents a comprehensive techno‐economic‐environmental assessment of an integrated pyrolysis‐based combined cycle (T‐cycle) and benchmarks its performance against a conventional natural gas combined cycle (C‐cycle). Thermodynamic modelling indicates that increasing pyrolysis temperature from 500°C to 1500°C enhances methane conversion (8% to 97%) and fuel LHV (51.73 to 115.3 MJ/kg) but reduces net power output (38.54 to 13.35 MW). At baseline conditions, the T‐cycle achieves an ≈54% reduction in specific CO2 emissions compared with the C‐cycle, while the electricity selling price increases from $0.13/kWh to $0.35/kWh. Parametric analyses reveal that reactor pressure improves net power but suppresses methane conversion, highlighting a trade‐off between efficiency and decarbonisation. Economic results indicate that electricity price parity between the two systems can be achieved under moderate carbon pricing or through valorisation of solid carbon byproducts, with a required solid carbon price of ≈1023 $/tonne in the absence of a carbon tax. Overall, the results demonstrate the system‐level potential of methane pyrolysis as a strategic decarbonisation pathway for gas‐fired power generation.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1002/aesr.202500405first seen 2026-05-15 17:32:33
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