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蒸留中心の製油所脱炭素化：原油蒸留装置および減圧蒸留装置のエネルギー最適化

Distillation-Centered Decarbonization of Petroleum Refineries: Energy Optimization of Crude and Vacuum Distillation Units (原題)

Aisha Jilani, Shahzeb Hassan, Nadia Khan, M. Sattar, Rahool Rai

Journal of Energy, Materials & Sustainability📚 査読済 / ジャーナル2026-09-10#省エネOrigin: Global経営インパクト: コスト削減対象セクター: power
DOI: 10.66173/jenmas.2026.217
原典: https://jenmas.org/index.php/jenmas/article/download/42/20
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🤖 gxceed AI 要約

日本語

本レビューは原油蒸留装置（CDU）と減圧蒸留装置（VDU）を中心に、製油所脱炭素化の介入策を階層的に整理する。ピンチ解析、熱交換網最適化、廃熱回収、ヒートポンプ、電化、デジタル最適化などを比較し、技術成熟度と導入制約を評価。Sinopec、ExxonMobil、Shell、TotalEnergiesの事例から、統合的蒸留最適化によりエネルギー消費を約15〜25%削減し、Scope1・2排出を大幅に低減できると結論づける。

English

This review examines distillation-centered decarbonization of refineries, focusing on crude and vacuum distillation units. It evaluates a hierarchy of interventions—operational optimization, pinch analysis, heat-exchanger network optimization, waste-heat recovery, heat pumps, electrification, and digital twins—comparing maturity and techno-economic characteristics. Synthesizing cases from Sinopec, ExxonMobil, Shell, and TotalEnergies, it shows integrated distillation optimization can cut energy use by ~15–25% and significantly reduce Scope 1 and 2 emissions.

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

日本の製油所は老朽化と脱炭素圧力に直面し、SSBJ・有報でのScope1/2開示やGX推進法下の投資判断に直結する。本レビューの省エネ・熱回収策は、国内事業所のロードマップ策定や統合報告書での削減実績説明に活用可能。

In the global GX context

Refinery decarbonization is central to ISSB/CSRD Scope 1 and 2 disclosure and transition finance. This review offers a practical technology hierarchy for hard-to-abate industrial assets, helping global operators and investors benchmark brownfield-ready measures against long-term electrification pathways.

👥 読者別の含意

🔬研究者:蒸留工程の脱炭素技術を成熟度・経済性で整理した参照枠を提供する。

🏢実務担当者:CDU/VDUの省エネ・熱回収策を優先順位付けし、Scope1/2削減計画に活用できる。

🏛政策担当者:産業脱炭素政策において、既存製油所の短期削減ポテンシャルと支援対象技術を把握できる。

📄 Abstract（原文）

The petroleum refining sector is a major industrial energy consumer, with crude and vacuum distillation representing important sources of thermal and utility demand. This review examines distillation-centered decarbonization of petroleum refineries, focusing on the Crude Distillation Unit (CDU) and Vacuum Distillation Unit (VDU) as interconnected components of the refinery energy system. The study evaluates a hierarchy of interventions, beginning with operational optimization and thermodynamic integration, followed by crude preheat-train fouling mitigation, direct waste-heat recovery, heat upgrading, process electrification, and digital optimization. Particular attention is given to Pinch Analysis, heat-exchanger-network optimization, waste-heat boilers, Organic Rankine Cycles, absorption heat pumps, Mechanical Vapor Recompression, fired heater optimization, steam and vacuum-system improvements, Advanced Process Control, and digital twins. The review further considers how CDU/VDU interventions interact with refinery fuel gas, steam networks, hydrogen recovery, downstream conversion units and refinery-wide energy management. The review compares technology maturity, implementation constraints, and indicative techno-economic characteristics to distinguish brownfield-ready measures from options requiring major retrofit or infrastructure changes. Reported performance values are treated as context-dependent ranges because achievable savings depend on crude quality, refinery configuration, baseline efficiency, throughput, utility prices and retrofit scope. The review concludes that near-term refinery decarbonization is best approached through an integrated sequence of demand reduction, heat recovery, operational control, and selective hardware modernization, with electrification and low-carbon hydrogen. Through a synthesis of industrial case studies from major operators including Sinopec, ExxonMobil, Shell, and TotalEnergies, this manuscript shows that a holistic distillation optimization strategy can yield energy savings of approximately 15–25% and significantly reduce Scope 1 and 2 emissions. The analysis concludes that while electrification and novel separations offer long term pathways, rigorous thermal integration and digital optimization constitute the essential, commercially viable bridge to the low-carbon refinery of the future.

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