A Systematic Review of Multiphase Flow and Phase Change in Cryogenic CH4-CO2 Pipeline Systems
低温CH4-CO2パイプラインシステムにおける多相流と相変化の系統的レビュー (AI 翻訳)
Ting He, Dongmei Chen, Liqiong Chen, Kun Huang, Haoyu Jia
🤖 gxceed AI 要約
日本語
本レビューは、LNG処理やCCUSネットワークに不可欠な低温CH4-CO2パイプライン内の固相CO2生成・水和物結晶化を含む多相流と相変化メカニズムを総括。非平衡動力学や遅延核生成現象に着目し、CFD・分子動力学・機械学習による予測手法の現状と課題を評価する。
English
This review systematically covers gas-liquid-solid multiphase flow and phase change mechanisms in cryogenic CH4-CO2 pipelines, crucial for LNG processing and CCUS networks. It focuses on solid CO2 formation, hydrate crystallization, non-equilibrium kinetics, and delayed nucleation, evaluating current CFD, molecular dynamics, and machine learning approaches.
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
日本はCCUSとLNGをGX戦略の柱としており、本レビューは低温パイプラインの閉塞リスク評価や流動保証技術の基礎を提供する。SSBJ開示におけるCCUS関連リスク管理にも示唆を与える。
In the global GX context
As CCUS scales globally, understanding solid CO2 formation in cryogenic pipelines is critical for operational safety and flow assurance. This review consolidates modeling capabilities that inform engineering design and risk assessment in CO2 transport infrastructure.
👥 読者別の含意
🔬研究者:This review provides a comprehensive foundation for multiphase flow and phase change research in cryogenic CO2-CH4 systems, highlighting knowledge gaps and promising computational methods.
🏢実務担当者:Engineers in CCUS and LNG can use this review to identify key flow assurance challenges and evaluate modeling tools for pipeline design and operation.
📄 Abstract（原文）
: The global transition toward sustainable energy systems underscores the strategic importance of methane (CH 4 )–carbon dioxide (CO 2 ) mixtures in cryogenic applications. In Liquefied Natural Gas (LNG) processing and Carbon Capture, Utilization, and Storage (CCUS) networks, such mixtures are routinely exposed to low-temperature environments where phase stability becomes critical. Under these conditions, the unintended formation of solid CO 2 (dry ice) within pipelines poses significant engineering challenges, including flow blockage and potential equipment damage. Ensuring flow assurance therefore demands a rigorous understanding of the coupling between thermodynamic phase transitions and complex hydrodynamic behavior. This paper presents a comprehensive review of recent advances in gas–liquid–solid multiphase flow and phase change mechanisms in CH 4 -CO 2 systems. It analyzes the thermophysical properties governing CO 2 de-sublimation and hydrate crystallization, with particular emphasis on non-equilibrium kinetics and delayed nucleation phenomena. In addition, the study assesses the capabilities of advanced modeling approaches, including Computational Fluid Dynamics (CFD), Molecular Dynamics (MD), and Machine Learning (ML) techniques, in predicting flow regime transitions and slurry transport behavior.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.32604/fdmp.2026.080326first seen 2026-05-29 05:45:45 · last seen 2026-06-03 05:21:49
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