【Ten Years of Rapid Development in Chemical Processing Equipment】2013–2019: Overseas companies began using controlled heat transfer conversion technology for the first time
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On July 24, 2019, Micah Kiffer, the technical manager at Air Products Corporation (AP), along with his team, visited Nanjing Dunxian Chemical Technology Co., Ltd. to carry out technical calibration of the controllable heat-transfer shift reactor used in Jutai’s 1 million-ton ethylene glycol production project, as specified in the contract between the two parties. This project represents the first collaboration between a foreign company in the field of heat transfer conversion and a domestic technology supplier, laying the foundation for the expansion of controllable heat transfer conversion technology overseas. It is understood that AP Company conducted a series of risk assessments on the shift reactor for this 1 million-ton ethylene glycol project, and in the end, the Nanjing Dunxian controllable heat-transfer shift reactor passed the evaluations successfully, making it AP Company’s long-term partner. The implementation period for this project is 12 months, and after implementation it can significantly reduce system costs and energy consumption compared to traditional technologies, while enhancing the safety and stability of system operation.
【Ten Years of Rapid Development in Chemical Processing Equipment】Asia’s largest propane underground storage facility project, 1308-2023, is now in operation at the Daxie Port area. https://bbs.hcbbs.com/thread-5498697-1-1.html (Source: Haichuan Chemical Industry Forum Website)
Recently, the kick-off meeting for the process package of the transformation project aimed at the green transformation and product structure adjustment and upgrading at Xindu Chemical Salt Industry was held at Xindu Chemical Co., Ltd. in Yingcheng City. Representatives from Yingshi Xindu Chemical Co., Ltd., China Wuhuan Engineering Co., Ltd., and Nanjing Dunxian Chemical Technology Co., Ltd. attended the meeting, during which unified requirements were set regarding relevant process technologies, design fundamentals, patented equipment, layout plans, boundary conditions, as well as the schedule for delivering related documents. The shift unit of this project, with an annual production capacity of 800,000 tons of synthetic ammonia, utilizes the advanced two-stage controllable heat-transfer shift technology developed by Nanjing Dunxian Chemical Technology Co., Ltd.; through two stages of isothermal shifting, the dry-base CO level at the outlet of the shift system is kept at ≤0.7%. This process flow, along with the accompanying DX-V type isothermal conversion furnace, has been successfully applied in the 600,000-ton synthetic ammonia projects of Henan Jindadi Phase III, Phase IV, and Phase V, delivering excellent performance across all indicators. As of December 6, 2023, over 110 DX-V type controlled heat-transfer (isothermal) shift reactors have been ordered for Nanjing Dunxian. More than 60 of these reactors are in operation, and all of them have performed very well. In particular, the multiple sets of DX-V type controlled heat-transfer (isothermal) shift reactors used in conjunction with pressurized coal gasification have been operating stably for over 5 years. This has solved the problem that has been a concern for many people: whether isothermal shift reactors can operate stably over long periods and with high quality when used in the primary shift reaction process. It has also increased the confidence of future manufacturers in adopting isothermal shift technology.