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Announcement on the 250,000 tons/year project for producing 1-butene from carbon tetrafluorides in Inner Mongolia Baofeng – 2025-05-14 13:28:13. On May 9th, the second public consultation regarding the environmental impact assessment of Inner Mongolia Baofeng Coal-based New Materials Co., Ltd.’s 250,000 tons/year project for producing 1-butene from carbon tetrafluorides was held. Project Overview Project Name: Inner Mongolia Baofeng Coal-based New Materials Co., Ltd.’s 250,000 tons/year C4-based 1-butene production project Project Owner: Inner Mongolia Baofeng Coal-based New Materials Co., Ltd. Project Type: New construction Proposed Location: Tuk Industrial Zone, Sulihe Economic Development Zone, Ordos, Inner Mongolia Construction Scope: 250,000 tons per year (based on mixed C4 raw materials); the main production units include selective hydrogenation, super pre-distillation, 2-butene isomerization, etherification for isobutylene removal, and precision distillation. The utility and auxiliary systems will be utilized from the existing coal-to-olefins facility on site. Project investment: The total investment for this project is 350 million yuan, of which 310,700 yuan is allocated to environmental protection measures, accounting for 0.089% of the total investment. The scale includes: mainly 3 × 2.2 million tons/year methanol plants (including an air separation unit producing 7 × 110,000 Nm3/h of oxygen, units for gasification, shift reaction and heat recovery, as well as low-temperature methanol washing, producing 3 × 562,000 Nm3/h of effective gas (CO + H2), and 3 × 100,000 tons/year sulfur recovery units); 3 × 1 million tons/year methanol-to-olefins plants (including olefin separation units); 3 × 500,000 tons/year polypropylene plants; 3 × 550,000 tons/year polyethylene plants; a 200,000 tons/year plant for producing 1-butene from C4; and a 200,000 tons/year steam cracking plant. In addition to producing polypropylene and polyethylene, it also produces by-products such as sulfur, heavy naphtha, C5+, ethylene tar, and MTBE. The project uses coal as a raw material to produce MTO-grade methanol via a space furnace; the DMTO-III technology developed by Dalian Institute of Chemical Physics is used for the conversion of methanol into olefins; the Unipol gas-phase fluidized bed process is employed for the production of polyethylene; and Basell’s Spheripol combined liquid-phase and gas-phase process is used for the production of polypropylene. The methanol production capacity is 7.42 million tons, utilizing 11 4,000-ton-class water-cooled space furnaces arranged in 3 series. The olefin capacity is 3 million tons per year, of which 400,000 tons per year are produced through the integration of green hydrogen on an incremental basis. The first, second, and third units of Inner Mongolia Baofeng Coal-Based New Materials Co., Ltd.’s coal-to-olefins demonstration project began operational trials in November 2024, January 2025, and March 2025 respectively, and all have produced qualified products. This makes the company the largest producer of coal-to-olefins in the world in terms of capacity, with Inner Mongolia’s coal-to-olefins production capacity now ranking first in the country. Since the commissioning of its first-phase project, Inner Mongolia Baofeng Coal-based New Materials Co., Ltd. has produced approximately 250,000 tons of mixed C4 products per year as a by-product, which are sold as liquefied gas. Mixed C4 contains a large amount of 1-butene, and there is a significant profit margin between 1-butene and mixed C4. To enhance the comprehensive utilization of mixed C4 hydrocarbons, increase the production of high-value-added products, and improve the economic efficiency of the enterprise, a 250,000-ton/year 1-butene plant is planned to be built in order to boost the production of high-value-added polymeric-grade 1-butene products, thereby meeting the future demand for such products in the company’s polyolefin industry.