In 2019, the first 500,000-ton/year methanol synthesis unit was successfully started up in Anhui Haoyuan, China. This unit adopted DUN XIAN's isothermal methanol reactor, representing a major advancement in methanol synthesis technology.

Nanjing Dunxian Chemical Technology Co., Ltd. is a high-tech private enterprise founded by Mr. Wang Qingxin in 2009. The company is primarily engaged in the research, development, and promotion of reactors and process packages for applications such as CO shift reactor, synthetic of ammonia, methanation reactor, methanol reactor, and DME reactor. DUN XIAN holds nearly 30 patented technologies, some of which have surpassed similar domestic technologies. Among them is the Controllable Heat-Transfer Shift process and its supporting water heat transfer isothermal reactors, which are patented and suitable for CO shift conditions. These technologies have been successfully implemented in nearly 118 sets of operating units and have achieved excellent results in practice. The company now holds a leading international position in this field, with a domestic market share of over 80% for isothermal shift technologies. DUN XIAN is also the only domestic supplier to provide shift technology and patented equipment to overseas companies such as Air Products (USA).

Anhui Juyuan Machinery Equipment Co., Ltd., a wholly owned subsidiary of Nanjing Dunxian Chemical Technology Co., Ltd., holds pressure vessel design and manufacturing qualifications and is primarily responsible for the fabrication of patented equipment developed by Dunxian Chemical and Dunxian Environmental. It ensures both manufacturing quality and project delivery timelines.

For more information about DUN XIAN's proven reactor solutions, please visit our Controllable Heat-Transfer Shift Reactor page.