Simulation and Optimization of the Composite Alcohol Amine Method Used for the Low-Concentration CO2 Capture Process: Analysis for Capture Efficiency and Energy Saving
低濃度CO2回収プロセスにおける複合アルコールアミン法のシミュレーションと最適化: 回収効率と省エネルギーの解析 (AI 翻訳)
Tianjiao Zhang, Yongduo Liu, Xin Liu, Hanyong Li
🤖 gxceed AI 要約
日本語
本研究は、低濃度CO2回収におけるMDEA-PZ系の数値シミュレーションを行い、最適条件を検討した。結果として、MDEA40%+PZ3%の組成で、吸収温度46℃、再生温度118℃、循環流量45m3/hのとき、初期比で総エネルギー消費を8.9%削減できることを示した。メタンロス低減にも寄与する。
English
This study uses Aspen HYSYS to simulate the MDEA-PZ system for low-concentration CO2 capture from shale gas. Single-factor sensitivity analysis identifies optimal conditions (40% MDEA, 3% PZ, absorption at 46°C, regeneration at 118°C, circulation 45 m3/h), reducing total energy consumption by 8.9% compared to baseline while minimizing methane loss.
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、CCUS技術の効率化が求められており、本論文のようなアミン系溶剤の最適化は、国内の天然ガス処理や産業排ガスへの応用が期待される。中国のシェールガスを対象としているが、プロセス条件は汎用的である。
In the global GX context
Globally, CCUS is critical for net-zero targets. This paper adds practical optimization data for a common solvent system (MDEA-PZ) applied to low-concentration CO2 streams, offering insights for reducing energy penalties in industrial capture applications.
👥 読者別の含意
🔬研究者:Provides validated simulation results for MDEA-PZ solvent optimization, useful for further modeling or experimental comparison.
🏢実務担当者:Offers recommended operating conditions to reduce energy consumption in CO2 capture plants using similar solvent systems.
📄 Abstract（原文）
Research on low-concentration CO2 capture technology is of great significance for China to achieve “carbon peak and carbon neutrality”. However, there are currently two challenges in low-concentration CO2 capture technology: high energy consumption and significant methane loss. Therefore, in this study, a numerical simulation method is used to establish the reaction model of the piperazine-activated N-methyl diethanolamine (abbreviated as MDEA-PZ) system with CO2 using Aspen HYSYS industrial software, taking shale gas from a production area as the raw material gas. Single-factor sensitivity analysis is conducted to study the impact of N-methyl diethanolamine (abbreviated as MDEA) mass fraction, piperazine (abbreviated as PZ) mass fraction, CO2 absorption temperature, and amine liquid regeneration temperature on the process. The results show that when the N-methyl diethanolamine mass fraction is between 37% and 42% and the piperazine mass fraction is between 2.5% and 5%, the regeneration energy consumption is lower and methane loss is smaller. For the raw material gas in this study, the recommended optimal amine liquid mass ratio is 40% of N-methyl diethanolamine + 3% of piperazine. Under this condition, the preferred absorption temperature is 46 °C, the amine liquid circulation rate is 45 m3/h, and the regeneration temperature is 118 °C, resulting in a significant reduction in the total energy consumption by 8.9% compared with the initial value.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/pr14091356first seen 2026-05-05 23:38:14
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