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クウェートのエネルギー転換を支える：複数排出源からのコスト・エネルギー最適化CO2輸送ネットワーク

Powering Kuwait's Energy Transition: A Cost and Energy Optimised CO2 Transport Network from Multiple Emitters (原題)

S. Sekharamantri, P. Sarker, M. Alsaleh, M. Guntuku

ADIPEC2026-11-02#CCUS経営インパクト: コスト削減対象セクター: power
DOI: 10.2118/236564-ms
原典: https://doi.org/10.2118/236564-ms

🤖 gxceed AI 要約

日本語

クウェート北部の6つの酸性ガス処理施設から約1.85MtpaのCO2をEOR・地中貯留向けに輸送する統合ネットワークを設計・最適化した研究。3つの輸送方式（各排出源圧縮の高密度相、注入地点昇圧の気相、集中昇圧のハイブリッド）をPIPESIMとGERG-2008状態方程式で水理・熱力学的に比較した。ハイブリッド気相・高密度相方式が最も優れ、高密度相方式比でCAPEX約19%削減・エネルギー約20%節約を達成した。

English

This study designs and optimizes an integrated CO2 transport network moving ~1.85 Mtpa from six sour gas facilities in North Kuwait to a common EOR/storage site. Three concepts—dense-phase, gas-phase, and a hybrid gas-dense phase with centralized boosting—were compared via PIPESIM hydraulics and GERG-2008 thermodynamics. The hybrid concept cut CAPEX ~19% and energy ~20% versus dense-phase, offering a scalable framework for multi-emitter CCUS clusters.

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

日本ではCCS/CCUSの商用化と拠点化（先進的CCS事業）がGX政策の柱であり、複数排出源を集約する最適輸送網設計の知見は国内クラスター形成やコスト低減の検討に直接応用できる。

In the global GX context

As ISSB/TCFD disclosure increasingly covers CCUS as a transition lever, this paper offers concrete techno-economic evidence on multi-emitter CO2 network design that informs transition-plan credibility and cluster-level decarbonization costing globally.

👥 読者別の含意

🔬研究者:多排出源CO2網の水理・熱力学モデリングと技術経済比較の実証的手法を学べる。

🏢実務担当者:CCUSクラスター参画企業は集中昇圧型ネットワーク設計がCAPEX・エネルギー両面で優位という判断材料を得られる。

🏛政策担当者:産業クラスター単位のCCUSインフラ整備と支援策設計の際、輸送方式選択がコストに与える影響を参照できる。

📄 Abstract（原文）

The development of large-scale Carbon Capture, Utilization and Storage (CCUS) projects requires safe, reliable, and cost-effective transportation of captured CO2 from multiple emission sources to utilization or storage locations. This paper presents the development and optimization of an integrated CO2 transportation network for North Kuwait, designed to transport approximately 1.85 Mtpa of captured CO2 from six geographically dispersed sour gas processing facilities to a common injection location for Enhanced Oil Recovery (EOR) and geological storage. The study evaluates alternative transport concepts and identifies the most cost- and energy-efficient network architecture. Three transportation concepts were developed and assessed: (1) dense-phase transport with compression at each emitter, (2) gas-phase transport with final boosting at the injection location, and (3) a hybrid gas-dense phase concept utilizing centralized booster compression. Hydraulic simulations were performed using PIPESIM to determine pipeline sizing, pressure profiles, flow velocities, and turndown performance. CO2 thermodynamic behavior was modeled using the GERG-2008 equation of state to accurately predict density, compressibility, and phase behavior across the operating envelope. Compression, pumping, dehydration, and pipeline pressure rating requirements were optimized for each concept. The alternatives were compared using techno-economic criteria including CAPEX, energy demand, operability, reliability, HSSE considerations, and implementation complexity. Dense-phase transport demonstrated excellent hydraulic performance but required extensive compression infrastructure at each emitter, resulting in the highest capital cost and energy demand. Gas-phase transport reduced source-side compression requirements but required significantly larger pipeline diameters, reducing its overall economic attractiveness. The hybrid gas-dense phase concept combined gas-phase gathering with centralized compression to dense-phase conditions and downstream dense-phase pumping for final injection pressure. This approach minimized compression complexity at individual facilities while retaining the hydraulic advantages of dense-phase transmission. The selected concept achieved approximately 19% CAPEX reduction and 20% energy savings relative to the dense-phase alternative. The study demonstrates that centralized boosting combined with downstream dense-phase pumping can provide a cost- and energy-optimized solution for medium-distance, multi-emitter CO2 transportation networks. By integrating hydraulic modelling, GERG-2008 thermodynamic analysis, and techno-economic evaluation, the work provides a practical and scalable framework for future onshore CCUS developments in Kuwait, the GCC region, and other industrial clusters pursuing large-scale decarbonization initiatives.

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