| 化学链空分联合化学链制氢的煤制甲醇过程参数优化与分析 |
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| 引用本文： | 周怀荣,马迎文,王可,李红伟,孟文亮,谢江鹏,李贵贤,张栋强,王东亮,赵永臣.化学链空分联合化学链制氢的煤制甲醇过程参数优化与分析[J].化工进展,2022,41(10):5332-5341. |
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| 作者姓名： | 周怀荣 马迎文 王可 李红伟 孟文亮 谢江鹏 李贵贤 张栋强 王东亮 赵永臣 |
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| 作者单位： | 1.兰州理工大学石油化工学院，甘肃 兰州 730050;2.陕西警官职业学院，陕西 西安 710021 |
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| 基金项目： | 甘肃省科技重大专项(19ZD2GD001);甘肃省高等学校产业支撑计划(2020C-06);甘肃省教育厅青年博士基金(2021QB-041) |
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| 摘 要： | 我国能源结构决定了以煤为主的甲醇生产路线。传统煤制甲醇过程主要存在过程能量效率低、CO2捕集能耗高等问题。本文提出了一种化学链空分联合化学链制氢的煤制甲醇新过程，以降低能耗、二氧化碳排放及提高能源效率。化学链空分技术的集成可以替代传统煤制甲醇过程的空气分离单元，并在一定程度上降低能耗。化学链制氢技术的集成，一方面可以替代水煤气变换装置，并且可以极大程度降低二氧化碳捕集能耗；另一方面，化学链制氢技术还可生产用于调整合成气氢与碳比的氢。本文对新过程的核心单元进行了参数优化以及全流程的模拟，基于模拟对新过程的性能进行了分析，结果表明新过程与传统的煤制甲醇过程相比，空分和二氧化碳捕集能耗分别降低了41%和89%。同时，新过程的能量效率提高了18%，二氧化碳排放量降低了45%。
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| 关 键 词： | 化学链空分 化学链制氢 煤制甲醇 参数优化 性能分析 |
| 收稿时间： | 2021-12-27 |
Optimization and analysis of coal-to-methanol process by integrating chemical looping air separation and hydrogen technology |
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| ZHOU Huairong,MA Yingwen,WANG Ke,LI Hongwei,MENG Wenliang,XIE Jiangpeng,LI Guixian,ZHANG Dongqiang,WANG Dongliang,ZHAO Yongchen.Optimization and analysis of coal-to-methanol process by integrating chemical looping air separation and hydrogen technology[J].Chemical Industry and Engineering Progress,2022,41(10):5332-5341. |
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| Authors: | ZHOU Huairong MA Yingwen WANG Ke LI Hongwei MENG Wenliang XIE Jiangpeng LI Guixian ZHANG Dongqiang WANG Dongliang ZHAO Yongchen |
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| Affiliation: | 1.College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
2.Shaanxi Police College, Xi’an 710021, Shaanxi, China |
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| Abstract: | China’s energy structure determines the coal based methanol production route. The traditional coal-to-methanol process has the problems of low energy efficiency and high energy consumption of CO2 capture. In order to reduce energy consumption and CO2 emission, and improve energy efficiency, a new coal-to-methanol process based on chemical looping air separation and hydrogen technology was proposed. The chemical looping air separation technology can replace the cryogenic air separation unit of traditional coal-to-methanol process, and reduce energy consumption to a certain extent. The integration of chemical looping hydrogen production technology can replace the water-gas shift device and greatly reduce the energy consumption of CO2 capture; moreover, chemical looping hydrogen production technology can also produce hydrogen for adjusting the hydrogen to carbon ratio of syngas. In this paper, the parameters of the core units of the new process were optimized and the whole process was simulated. Based on the simulation, the performance of the new process was analyzed. The results show that the energy consumption of air separation and CO2 capture is reduced by 41% and 89%, respectively, comparing with the traditional coal-to-methanol process. At the same time, the energy efficiency of the new process is increased by 18% and the CO2 emission is reduced by 45%. |
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| Keywords: | chemical looping air separation chemical looping hydrogen production coal-to-methanol parameters optimization performance analysis |
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