DUN XIAN Controllable Heat-Transfer Shift Reactor

Proven in nearly 118 operating units, DUN XIAN’s patented Controllable Heat-Transfer Shift Reactor delivers reliable performance for CO shift conditions in coal chemical and ammonia production.

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's Controllable Heat-Transfer Shift Reactor is based on the patented Controllable Heat-Transfer Shift process and its supporting water heat transfer isothermal reactors. These technologies are suitable for CO shift conditions and have been successfully implemented in nearly 118 sets 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). The company has developed various models, including DX-I, DX-III, DX-IV, and DX-V. The DX-V Controllable Heat-Transfer Shift reactor was successfully applied in the HuaLu Hengsheng 1 million-ton methanol-ammonia co-production project, the Anhui Haoyuan 900,000-ton methanol project, and was first adopted by Air Products and Zhejiang Petrochemical's 40 million-ton/year large-scale oil refining project in 2019. In 2025, China's largest shift unit, supported by this technology, was successfully started up at the Inner Mongolia Baofeng 4 million-ton coal-to-olefins project. 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.

Shift Reactor | Controllable Heat Transfer Reactor | Dunxian