Clean coal technologies in China based on methanol platform
Clean coal technologies in China based on methanol platform
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DOI：
10.1016/j.cattod.2017.05.070
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发表时间：
2017-12-01
期刊：
影响因子：
5.3
通讯作者：
Zhang, Yulong
中科院分区：
文献类型：
--
作者：
Xu, Xiaoying;Liu, Yuan;Zhang, Yulong
煤炭是世界上储量最丰富的化石能源，但传统的煤炭利用方式所带来的环境问题使煤炭工业受到威胁。近年来，中国开发了一系列清洁煤技术，将黑煤转化为清洁燃料和化学品。中国最大的煤炭公司神华集团正在引领现代清洁煤技术的商业化，用于增值化学品和清洁运输燃料，其中二氧化碳在此过程中被捕获，并为碳捕获，利用和储存（CCUS）做好准备。煤基甲醇生产和转化的工业装置在过去十年中蓬勃发展。随着可再生氢气的开发，CO2加氢制甲醇有望实现向“甲醇经济”这一可持续能源发展体系的转变。本文将重点介绍我国甲醇基煤转化技术的研究与开发概况，如甲醇合成、甲醇制烯烃（MTO）、化工产品（甲醛、醋酸、芳烃、乙醇、乙二醇等）、汽油（MTG）、二甲醚（DME）、聚甲醛二甲醚（DMMn）、甲基叔丁基醚（MTBE）、直接燃烧（DMFC）以及作为能量载体。详细介绍了我国甲醇合成及利用的工业化及示范成功的装置。
Coal is the most abundant fossil energy, however, coal industry is threatened by its environmental problems caused by the traditional way of utilization. In recent years, China has developed a series of clean coal technologies to transform black-dirty coal into clean fuels and chemicals. Shenhua Group, the largest coal company in China is leading the commercialization of modern clean-coal technologies for value-added chemicals and clean transportation fuels, in which CO2 is captured in the process and ready for carbon capture, utilization and storage (CCUS). Industrial plants for coal based methanol production and conversion are flourishing in last decade. With the development of renewable H-2, methanol production could be realized by CO2 hydrogenation to transform into "Methanol Economy", the sustainable energy development system. This paper will focus on the overview of research and development of methanol-based coal conversion technologies in China, such as methanol synthesis, methanol to olefins (MTO), chemicals (formaldehyde, acetic acid, aromatics, ethanol, ethylene glycol, etc.), gasoline (MTG), dimethyl ether (DME), polyoxymethylene dimethyl ethers (DMMn), methyl tertbutyl ether (MTBE), direct combustion (DMFC), and as energy carrier. Commercial and successfully demonstrated units in China on both the synthesis of methanol and its utilization are discussed in detail.