* * In which projects is Cunard BDO (1,4-butanediol) process package applied?

Inner Mongolia Dongjing Bio-Environmental Protection Technology Co., Ltd.’s annual production of 200,000 tons of 1,4-butanediol project changes project nature: Change construction location: The vacant land is reserved by Inner Mongolia Dongyuan Technology Co., Ltd. in Wuda Industrial Park, Wuhai Economic Development Zone. Change content: The scale of the formaldehyde plant is changed from 2×240000t/a to 2×300000t/a. ； The calcium carbide tail gas hydrogen production unit of 18,000Nm3/h was changed to a natural gas hydrogen production of 20,000Nm3/h. On May 20, 2021, the opening ceremony of the 200,000-ton BDO project of Inner Mongolia Dongjing Biological Environmental Protection Technology Co., Ltd. was held in the factory area of ​​Inner Mongolia Dongyuan Technology Co., Ltd., marking the official start of the construction of the project. The project is located on the north side of the first phase of Dongyuan Science and Technology in Inner Mongolia, covering an area of ​​about 150,000 square meters (225 acres). The total investment of the project is 29.4 billion yuan. It is planned to be completed and put into operation in 2022. The project technology adopts * * Cunda Technology utilizes local advantageous resources such as lime, electricity, coal, etc. to build an integrated circular economy industry development model with 1,4-butanediol (BDO) as the carrier. After the completion of the project, Dongyuan Technology's maximum BDO production capacity will reach 400,000 tons. Beijing Petrochemical Engineering Co., Ltd., a wholly-owned subsidiary of Shaanxi Construction Engineering Group Co., Ltd., and Inner Mongolia Dongjing Bio-Environmental Protection Technology Co., Ltd. signed a general contract (EPC) for the 200,000 tons/year 1,4-butanediol integrated project of Inner Mongolia Dongjing Bio-Environmental Protection Technology Co., Ltd. Contract amount: 2.506 billion yuan, contract period: 20 months. The scope of the project ranges from the production of acetylene from raw material calcium carbide, hydrogen production, formaldehyde, to obtaining qualified 1,4-butanediol products. It mainly includes acetylene stations, formaldehyde units, natural gas hydrogen production, butanediol units and necessary auxiliary production facilities to supplement the consumption of the first phase of the 100,000 tons annual 1,4-butanediol project.

BDO (1,4-butanediol) is an important organic chemical and fine chemical raw material. It is used in the production of polybutylene terephthalate (PBT),* * Basic raw materials of furan (THF) and 1,4-butyrolactone. As global environmental protection efforts intensify, “plastic restrictions” have become widespread in most countries around the world. * * Implementation, the introduction of "plastic restriction orders" and "plastic ban orders" by my country's central and local provinces and cities and the expansion of the green consumer market, fully biodegradable plastics have shown good market prospects. PBAT, as a fully biodegradable plastic, can be widely used in supermarket shopping bags, take-out lunch boxes, agricultural mulch films, biomedical and other fields. PBT can further generate PBAT. THF is an important organic solvent. Polytetramethylene ether glycol (PTMEG) obtained after polymerization is the basic raw material for the production of highly elastic spandex (Lycra fiber). Spandex is mainly used to produce high-elastic knitted products such as high-end sportswear and swimwear. 1,4-Butyrolactone is the raw material for the production of 2-pyrrolidine and N-methylpyrrolidine, from which a series of high value-added products such as vinylpyrrolidine and polyvinylpyrrolidine are derived, which are widely used in pesticides, medicines, cosmetics and other fields.

Cunard is the FT process, the first half of ISP + the second half of INVISTA, Xinjiang Tianye has the most production lines!

The ethylene glycol (EG) produced by Tianzhi Chenye is in a high boom cycle. The Tianzhi Chenye Phase I project's calcium carbide furnace tail gas production plant of 50,000 tons/year ethylene glycol and 30,000 tons/year 1,4-butanediol was completed and put into operation in 2012. ； The second phase of the project with an annual output of 200,000 tons/year ethylene glycol and 170,000 tons/year 1,4-butanediol was completed and put into operation in 2016. Ethylene glycol is mainly used in the production of polyester chemical fibers, mainly polyester, and butylene glycol is used in the production of spandex, both of which are mainly used in the textile industry.