| 气煤联供实现资源高效利用和碳减排技术进展 |
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| 引用本文： | 刘硕士,杨思宇,顾竞芳,钱宇.气煤联供实现资源高效利用和碳减排技术进展[J].化工进展,2019,38(1):664-671. |
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| 作者姓名： | 刘硕士 杨思宇 顾竞芳 钱宇 |
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| 作者单位： | 华南理工大学化学与化工学院,广东省绿色化学产品技术重点实验室,广东广州510640;华南理工大学化学与化工学院,广东省绿色化学产品技术重点实验室,广东广州510640;华南理工大学化学与化工学院,广东省绿色化学产品技术重点实验室,广东广州510640;华南理工大学化学与化工学院,广东省绿色化学产品技术重点实验室,广东广州510640 |
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| 基金项目： | 国家自然科学基金重点项目(21736004);省部共建煤炭高效利用与绿色化工国家重点实验室开放课题(2017-K03);国家自然科学基金重点项目（21736004）；省部共建煤炭高效利用与绿色化工国家重点实验室开放课题（2017-K03）。 |
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| 摘 要： | 为解决煤化工过程资源利用率低和碳排放高的问题，有研究者提出以天然气、焦炉气、页岩气等富氢资源和煤炭资源联供方案，旨在实现源头碳减排。文章指出依据联供过程技术的差异，较有代表性的方案可分为集成甲烷部分氧化和集成甲烷干/水蒸气重整的气煤联供过程。文章以生产甲醇为例，从资源利用和经济效益等方面对集成甲烷部分氧化和集成甲烷干/水蒸气重整的气煤联供过程进行分析和比较。集成甲烷部分氧化的工艺碳元素利用率达到57.9%，每吨甲醇排放CO2为1.50t，较传统煤制甲醇工艺排放减少37.5%。甲醇产品成本稍低于传统工艺。集成甲烷干/水蒸气重整工艺的碳元素利用率最高，达到83.7%。减排效果最明显，每吨甲醇排放CO2为0.90t，较传统工艺排放减少62.5%，但是由于CO2转化增加能耗，甲醇产品成本有所提升。由于气煤联供过程有利于CO2减排，当碳税高于65CNY/tCO2时，两个气煤联供工艺的生产成本低于传统的煤制甲醇工艺。
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| 关 键 词： | 气煤联供 甲烷部分氧化 甲烷干/水蒸气重整 技术-经济分析 碳氢元素利用 |
| 收稿时间： | 2018-06-12 |
Review on coal and gas co-feed processes for better resource use and lower carbon emission |
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| Shuoshi LIU,Siyu YANG,Jingfang GU,Yu QIAN.Review on coal and gas co-feed processes for better resource use and lower carbon emission[J].Chemical Industry and Engineering Progress,2019,38(1):664-671. |
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| Authors: | Shuoshi LIU Siyu YANG Jingfang GU Yu QIAN |
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| Affiliation: | The Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China |
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| Abstract: | The low resource efficiency and high carbon emission are severe in coal chemical industries. A great number of co-feed processes of coal and hydrogen-rich gas were proposed to achieve carbon reduction at source. The integrated hydrogen-rich gas includes natural gas, coke-oven gas and shale gas. The representative co-feed processes can be divided into the co-feed process integrated with methane partial oxidation (MPO) and the co-feed process integrated with dry/steam methane reforming (DMR/SMR) according to the differences in process. Tech-economic analysis was conducted for these two processes by means of resource utilization and economic performance, compared with the conventional coal to methanol (CTM) process. The co-feed process with MPO has higher carbon elemental utilization ratios up to 57.9%. It emits 1.50t CO2 per ton methanol, giving 37.5% reduction. It has a slightly lower production cost. The process integrated with DMR/SMR has the highest carbon utilization ratios of 83.7%. The carbon emission reduction effect is the most obvious. This process emits 0.90t CO2 per ton methanol, which is 62.5% lower than the traditional process. It has a slightly higher production cost brought by the energy consumption of CO2 conversion. With the carbon tax higher than 65CNY/t, the advantage of these co-feed processes is emerging on economy due to its carbon reduction. |
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| Keywords: | coal and gas co-feed methane partial oxidation dry/steam methane reforming techno-economic analysis element utilization |
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