Two processes of Huisheng Engineering have passed technical evaluation

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This post was last edited by liaifeng on 2018-9-1 at 12:07. Two processes of Huisheng Engineering have passed technical certification. Recently, two process technologies developed by Huisheng Engineering – the falling film heat exchange differential absorber technology for MTO oil absorption towers, and a preliminary water treatment technology suitable for downward water-cooled gasification processes – have been recognized as proprietary technologies by the China Petroleum and Chemical Exploration and Design Association. The microabsorber technology for falling film heat exchange in MTO oil absorption towers is applied to the MTO olefin separation process of Whiting Engineering, and is also suitable for similar light hydrocarbon separation units. It can reduce equipment investment and floor space, increase the ethylene recovery rate, lower energy consumption, and significantly improve the technical parameters for light hydrocarbon recovery. Actual production data show that for an MTO plant with an annual output of 300,000 tons of olefins, the use of this technology can save 1.5 million yuan in investment costs; the ethylene recovery rate increases from 99.7% to over 99.9%, resulting in economic benefits of more than 2 million yuan. Another recognized proprietary technology is a preliminary water treatment technique developed to support the new downward water-cooled pulverized coal gasification technology. It can meet the requirements of this new gasification process for the preliminary treatment of waste slag water, the reuse of ash water, and the removal of fine ash. This technology has been successfully applied to the 1,000 tons per day water-jet cooled pulverized coal gasification unit at Huisheng (Nanjing) Clean Energy Co., Ltd., whose commercial operation was achieved through a partnership between Huisheng and Shell. It not only enhances the stability of the unit’s operation but also reduces the investment required for it as well as its footprint. By adopting heat recovery technology, the heat recovery efficiency of the entire water treatment process has also been increased to nearly 50%.