Approval Granted for Qinghai’s 21.1-billion-yuan Coal-to-Olefins Project (Detailed Construction Details)

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Approval Granted for Qinghai’s 21.1-billion-yuan coal-based olefins project (detailed construction details) Author/Source: Date: 2017-08-11 Clicks: 37 On August 7, 2017, the Qinghai Provincial Commission of Economy and Information Technology issued an approval decision regarding Qinghai Mining Group Co., Ltd.’s 600,000-ton/year olefins project (Document No. Qing Jing Xin Tou [2017] 281). In June 2017, the **Ministry of Environmental Protection issued the \"Approval on the Environmental Impact Assessment Report for Qinghai Mining Group Co., Ltd.’s 600,000 tons per year olefin project\" (Huan Shen [2017] No. 64), officially approving the application for an environmental impact assessment for this project. In June 2017, a new investor was brought in for Qinghai Mining’s 600,000 tons per year olefins project. Under the investment cooperation agreement signed, China Energy Engineering Group will jointly invest with Qinghai State Investment Company to build Qinghai Mining’s 600,000-ton coal-to-olefins project. Qinghai Mining Group Co., Ltd.’s 600,000 tons per year olefin production project: Location – Golmud Industrial Park, Golmud City, Haixi Mongol and Tibetan Autonomous Prefecture, Qinghai Province. Constructor – Qinghai Mining Group Co., Ltd. Environmental impact assessment agency – China Tianchen Engineering Co., Ltd. Project overview: Using local coal as raw material, this project employs processes such as gasification, methanol synthesis, and methanol-to-olefins conversion to produce 260,000 tons per year of ethylene and 415,400 tons per year of polypropylene. The construction contents mainly include: (1) Main projects: 10 production units, including air separation, coal gasification, shift reaction, low-temperature methanol washing, sulfur recovery, methanol synthesis, MTO, MTBE/butene-1, olefin conversion, and polypropylene. (2) Utility systems: circulating water system, thermal power station, flare system, etc. (3) Storage and transportation engineering: coal storage and transportation, tank farms, warehouses, etc. (4) Environmental protection projects: wastewater treatment systems, reclaimed water treatment systems, waste gas treatment facilities, etc. The total investment for the project is 21.144 billion yuan, of which 1.593 billion yuan is allocated to environmental protection measures, accounting for 7.5% of the total investment. Qinghai Mining Group Co., Ltd. is a joint-stock company established by Qinghai Muli Coal Development Group Co., Ltd., in collaboration with other original developers of the Muli coal mines such as Yima Coal Industry Group Co., Ltd., Qinghai Qinghua Mining, Metallurgy and Coal Chemical Group Co., Ltd., and China Railway Group Co., Ltd. Process flow and product plan: The 600,000 tons per year olefins project of Qinghai Mining Group Co., Ltd. covers an area of 251.2 hectares. It uses coal from the Yuka, Dameigou, and Muli coal mines as raw material, and through dry powder coal pressure gasification and purification, purified gas is produced; this purified gas is then used in a methanol production facility to generate MTO-grade methanol intermediates ； MTO-grade methanol is first catalytically converted in an MTO unit to produce light olefins, which are then separated to yield products such as polymer-grade ethylene and polymer-grade propylene ； Polypropylene products are produced by polymerizing propylene and then extruding it into granules. Among them, ethylene is transported outside the comprehensive utilization product pipeline and sent via pipeline to the ethylene receiving area of the integrated salt lake magnesium project at the Chaharhan major industrial base, where it serves as a raw material for producing polyvinyl chloride (PVC) from the by-product chlorine gas generated in the second phase of Salt Lake Group’s integrated magnesium project. http://img.yf116.cn/image/img/20170811/85248319682.jpg http://img.yf116.cn/image/img/20170811/853313201180.jpg The metal magnesium integration project of Qinghai Salt Lake Group generates nearly 1.7 million tons of chlorine per year as a by-product. Qinghai Mining’s 600,000-ton olefin project is based on this salt lake metal magnesium integration project, with the main goal of promoting the sustainable development of salt lake resources. Adhering to the principle of \"determining production based on water availability,\" it addresses fundamentally the issue of what to do with the large amount of chlorine generated during the development of salt lake resources. http://img.yf116.cn/image/img/20170811/854583209834.jpg The future industrial base will be driven by coal-to-olefins production; downstream applications of ethylene will focus on polyethylene and EVOC products, while downstream applications of propylene will focus on polypropylene and polyacrylonitrile products. Priority will be given to developing four industrial chains: “ethylene-chloroethylene-HDPE/LLDPE/CPE”, “ethylene-vinyl acetate-EVOC”, “propylene-polypropylene-appliances housings/plastic fittings/translucent PP”, and “propylene-polyacrylonitrile-polyacrylonitrile”, in order to establish a framework for the development of a new type of coal chemical industry. Construction contents: The main components of the project include an 1.8 million tons per year coal gasification to methanol plant and a 600,000 tons per year methanol to olefins plant. It produces 260,000 tons per year of ethylene and 415,400 tons per year of polypropylene. The by-products include 17,100 tons per year of sulfur, 4,550 tons per year of MTBE, 16,800 tons per year of butene-1, 14,400 tons per year of isobutane + C4+, and 9,400 tons per year of C5+ and C6+. The intermediate products consist of 1.89472 million tons per year of MTO-grade methanol (95%) and 640 tons per year of hydrogen. Auxiliary facilities include 4 thermal power stations with a capacity of 260 t/h, a central control room, a central laboratory, and a comprehensive office building. http://img.yf116.cn/image/img/20170811/856393219964.jpg http://img.yf116.cn/image/img/20170811/857213224183.jpg http://img.yf116.cn/image/img/20170811/857543227411.jpg http://img.yf116.cn/image/img/20170811/858353231519.jpg http://img.yf116.cn/image/img/20170811/859163235658.jpg