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Construction of Chengzhi’s 600,000 tons/year MTO project in Nanjing Chemical Industrial Park has begun. Author/Source: Huahua Network – Coal Chemicals. Date: April 3, 2018. Clicks: 27. On March 30, the prefabrication of the steel structures for the main pipelines in the methanol-to-olefins unit, as well as those in the oxidation and olefin concentration sections of this project, which is being built by Sinopec Refining & Chemical Engineering Corporation’s Tenth Construction Company, commenced, marking the official start of construction on this project. The total investment in Nanjing Chengzhi’s MTO project is 4.157 billion yuan. The MTO unit utilizes a combination of Honeywell UOP reaction technology and Huisheng Engineering’s olefin separation technology, with completion expected by February 28, 2019. The main products are 239,100 tons per year of ethylene and 360,900 tons per year of propylene, with by-products including ethane, propane, LPG, and crude benzene. Once this project is put into operation in the future, the total production capacity of the methanol-to-olefins plant operated by Nanjing Chengzhi Yongqing Energy Technology Co., Ltd. will reach 900,000 tons per year. Nanjing Chengzhi Yongqing Energy Technology Co., Ltd. was formerly known as Huisheng (Nanjing) Clean Energy Co., Ltd. It was the first company in China to receive authorization from Honeywell UOP for the methanol-to-olefins technology, and its 300,000 tons per year methanol-to-olefins plant came online in 2013. Huisheng (Nanjing) Clean Energy Co., Ltd. was acquired in 2016 by Chengzhi Co., Ltd., an investment firm affiliated with Tsinghua University. It is reported that the methanol source for this MTO project comes from both imports and domestic purchases. For imported methanol, supply agreements amounting to 30,000–50,000 tons per month have been signed with Shanghai Xiangyu and Mitsubishi Corporation; as for domestic methanol, supply agreements have been concluded with Chongqing Cabelle Chemical Co., Ltd., Shaanxi Changqing Chemical Co., Ltd., and Yichang Xingfa Group, with each party supplying around 30,000 tons per month. Imported methanol is transported via the Yangtze River to the dock, where it is unloaded into the Oude storage tanks; from there, it is delivered via pipelines to the raw material storage tanks in the factory. The methanol supplied by Xingfa and Cabrelle is also transported directly to the dock via the Yangtze River and then unloaded into the Oude storage tanks, before being sent to the factory’s raw material storage tanks through pipelines. As for the methanol supplied by Shaanxi Changqing, it is first transported by road to Wuhan, and then via the Yangtze River to the dock, from where it is transferred to the factory’s raw material storage tanks through the Oude storage tanks. On October 31, 2017, Huisheng Engineering signed a contract with Nanjing Chengzhi for the design management, procurement, and construction general contracting of a 600,000 tons per year methanol to olefins (MTO) plant and a 100,000 tons per year butadiene plant. Previously, Huisheng Engineering had already secured the design contract for this project, as well as the technical licenses and process package contracts for the olefin separation unit and the butadiene unit of the MTO plant. On November 23, 2017, the signing ceremony for the EM+PC general contract for the utility and auxiliary facilities of Nanjing Chengzhi Yongqing Energy Technology Co., Ltd.’s 600,000 tons per year MTO project, as well as the project kick-off meeting, were held at China Chengda Engineering Co., Ltd. Immediately following the signing ceremony, the two parties held a project kickoff meeting to make arrangements and plans.