煤和焦炉气联供制烯烃过程的建模模拟与分析

doi:10.3969/j.issn.0438-1157.2014.12.028

化工学报 ›› 2014, Vol. 65 ›› Issue (12): 4850-4856.DOI: 10.3969/j.issn.0438-1157.2014.12.028

煤和焦炉气联供制烯烃过程的建模模拟与分析

满奕, 杨思宇, 项东, 钱宇

华南理工大学化学与化工学院, 广东广州 510640

收稿日期:2014-09-02 修回日期:2014-09-08 出版日期:2014-12-05 发布日期:2014-12-05
通讯作者: 钱宇
基金资助:
国家自然科学基金项目(21136003,21306056);国家重点基础研究发展计划项目(2014CB744306).

Modeling, simulation and analysis for co-feed process of coal and coke-oven gas to olefins

MAN Yi, YANG Siyu, XIANG Dong, QIAN Yu

School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China

Received:2014-09-02 Revised:2014-09-08 Online:2014-12-05 Published:2014-12-05
Supported by:
supported by the National Natural Science Foundation of China (21136003, 21306056) and the National Basic Research Program of China (2014CB744306).

摘要/Abstract

摘要： 由于煤富碳少氢,煤制烯烃过程生产1 t产品将排放约5.8 t CO₂.与此同时,中国焦炭工业每年产生约7×10¹⁰ m³的副产物焦炉气,这些富氢的焦炉气大多被燃烧或直接排放进入大气,对环境造成严重影响的同时还浪费了巨大的经济价值.本文对焦炉气辅助煤制烯烃的新过程进行了建模模拟与系统分析.焦炉气与煤元素互补,焦炉气中的H₂可用来调节合成气的氢碳比;CH₄可通过甲烷水蒸气重整和甲烷干重整两个过程,提高合成气的氢碳比的同时降低煤制烯烃过程排放的CO₂,提高碳元素利用率,实现节能减排.这个新的联供过程的能效比煤制烯烃过程提高了约10个百分点,而CO₂排放量则减少了约95%.

关键词: 计算机模拟, 合成气, 系统工程, 焦炉气, 甲烷干重整, 甲烷水蒸气重整, 烯烃

Abstract: Olefins are one of the most important platform chemicals. Developing coal-to-olefins (CTO) processes is regarded as one of promising alternatives to oil-to-olefins process. However, CTO suffers from high CO₂ emission due to the high carbon contents of coal. In China, there is 7×10¹⁰ m³ coke-oven gas (COG) produced in coke plants annually. However, most of the hydrogen-rich COG is utilized as fuel or discharged directly into the air. Such situation is a waste of precious hydrogen resource and serious economic loss, which causes serious environmental pollution either. This paper proposes a novel co-feed process of coal and COG to olefins in which CH₄ of COG reacts with CO₂ in a dry methane reforming unit to reduce emissions, while the steam methane reforming unit produces H₂-rich syngas. H₂ of COG can adjust the H/C ratio of syngas. The analysis shows that the energy efficiency of the co-feed process increases about 10 %, while at the same time, CO₂ emission is reduced by around 95 % in comparison to the conventional CTO process.

Key words: computer simulation, syngas, systems engineering, coke-oven gas, dry methane reforming, steam methane reforming, olefins

中图分类号:

TQ536.1

满奕, 杨思宇, 项东, 钱宇. 煤和焦炉气联供制烯烃过程的建模模拟与分析[J]. 化工学报, 2014, 65(12): 4850-4856.

MAN Yi, YANG Siyu, XIANG Dong, QIAN Yu. Modeling, simulation and analysis for co-feed process of coal and coke-oven gas to olefins[J]. CIESC Journal, 2014, 65(12): 4850-4856.

参考文献 20

[1]	Xiang D, Qian Y, Man Y, Yang S. Techno-economic analysis of the coal-to-olefins process in comparison with the oil-to-olefins process [J]. Applied Energy, 2014, 113: 639-647
[2]	National Bureau of Statistics of China. China Energy Statistics Yearbook (中国能源统计年鉴) [M]. Beijing: China Statistics Press, 2012
[3]	Xiang Dong (项东), Peng Lijuan (彭丽娟), Yang Siyu (杨思宇), Qian Yu (钱宇). A review of oil-based and coal-based processes for olefins production [J]. Chemical Industry and Engineering Process (化工进展), 2013, 32 (5): 959-970
[4]	Yang S, Yang Q, Li H, Jin X, Li X, Qian Y. An integrated framework for modeling, synthesis, analysis, and optimization of coal gasification-based energy and chemical processes [J]. Industrial & Engineering Chemistry Research, 2012, 51: 15763-15777
[5]	Minchener A J. Gasification based CCS challenges and opportunities for China [J]. Fuel, 2013, 116: 904-909
[6]	Martínez I, Murillo R, Grasa G, Fernández J R, Abanades J C. Integrated combined cycle from natural gas with CO2 capture using a Ca-Cu chemical loop [J]. AIChE Journal, 2013, 59: 2780-2794
[7]	Man Y, Yang S, Xiang D, Li X, Qian Y. Environmental impact and techno-economic analysis of the coal gasification process with/without CO2 capture [J]. Journal of Cleaner Production, 2014, 71: 59-66
[8]	Adams T A, Barton P I. Combining coal gasification and natural gas reforming for efficient polygeneration [J]. Fuel Processing Technology, 2011, 92: 639-655
[9]	Salkuyeh Y K, Adams T A. Combining coal gasification, natural gas reforming, and external carbonless heat for efficient production of gasoline and diesel with CO2 capture and sequestration [J]. Energy Conversion and Management, 2013, 74: 492-504
[10]	National Development and Reform Commission of China (国家发改委). Natural Gas Utilization Policy (天然气利用政策) [OL]. [2012]. http://www.gov.cn/flfg/2012-10/31/content_2254647.htm
[11]	Razzaq R, Li C, Zhang S. Coke oven gas: availability, properties, purification, and utilization in China [J]. Fuel, 2013, 113: 287-299
[12]	Man Y, Yang S, Zhang J, Qian Y. Conceptual design of coke-oven gas assisted coal to olefins process for high energy efficiency and low CO2 emission [J]. Applied Energy, 2014, 133: 197-205
[13]	Xie K, Li W, Zhao W. Coal chemical industry and its sustainable development in China [J]. Energy, 2010, 35 (11): 4349-4355
[14]	Lim Y, Lee C J, Jeong Y S, Song I H, Lee C J, Han C. Optimal design and decision for combined steam reforming process with dry methane reforming to reuse CO2 as a raw material [J]. Industrial & Engineering Chemistry Research, 2012, 51: 4982-4989
[15]	Yang S, Yang Q, Man Y, Xiang D, Qian Y. Conceptual design and analysis of a nature gas assisted coal-to-olefins process for CO2 reuse [J]. Industrial & Engineering Chemistry Research, 2013, 52: 14406-14414
[16]	Qian Y, Liu J, Huang Z, Kraslawski A, Cui J, Huang Y. Conceptual design and system analysis of a poly-generation system for power and olefin production from natural gas [J]. Applied Energy, 2009, 86: 2088-2095
[17]	Zheng Anqing (郑安庆), Feng Jie (冯杰), Ge Lingjuan (葛玲娟), Yi Qun (易群), Li Wenying (李文英). Modeling and optimization of polygeneration system with coke-oven gas and coal gasified gas by Aspen Plus (I) [J]. CIESC Journal (化工学报), 2010, 61 (4): 969-978
[18]	Yi Q, Feng J, Li W. Optimization and efficiency analysis of polygeneration system with coke-oven gas and coal gasified gas by Aspen Plus [J]. Fuel, 2012, 96: 131-140
[19]	Yi Qun (易群), Wu Yanli (吴彦丽), Fan Yang (范洋), Hu Changchun (胡长淳), Chu Qi (褚琦), Feng Jie (冯杰), Li Wenying (李文英). Economic evaluation of industrial chain extension solutions for coke oven gas to methanol and chemicals [J]. CIESC Journal (化工学报), 2014, 65 (3): 1003-1011
[20]	GB/T 2589—2008. General principles of the comprehensive energy consumption calculation (综合能耗计算通则) [S]. Beijing: China Standard Press, 2008

煤和焦炉气联供制烯烃过程的建模模拟与分析

Modeling, simulation and analysis for co-feed process of coal and coke-oven gas to olefins

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