The centrifugal compression unit of the waste heat recovery system at the top of the low-temperature methanol wash heat regeneration tower in Xinjiang Haoyuan has passed the factory acceptance tests

Thread Content

Recently, the centrifugal compressor unit of the waste heat recovery system for the top of the low-temperature methanol wash heat regenerator, independently developed by Shanghai Qiyao Screw Machinery Co., Ltd. (hereinafter referred to as “Qiyao Screw”), which is affiliated with CSIC 711 Institute, successfully passed the factory acceptance tests. This centrifugal heat pump compressor is a key device developed by Qi Yao Screw to address the challenge of waste heat recovery in the low-temperature methanol washing process. In traditional methanol washing processes, due to acid gas corrosion and non-condensable components, it is difficult to effectively recover the low-temperature waste heat at the top of the regeneration tower, resulting in low energy utilization efficiency and high operating costs. Leveraging years of experience in systematic process design and fluid machinery development, Qi Yao Screw has focused on key technologies such as pneumatic design for high-temperature and humid environments, efficient inter-stage liquid spraying cooling, and disturbance-free switching of heat pump systems, thereby optimizing the integration between heat pump systems and the methanol washing process. By efficiently recovering low-temperature waste heat through advanced recovery processes, replacing traditional steam heating with green electricity, a single unit can save over 7,000 tons of standard coal per year and reduce carbon dioxide emissions by more than 18,000 tons, thereby significantly improving the energy efficiency and carbon reduction capabilities of methanol washing units. The methanol wash centrifugal heat pump compressor represents a groundbreaking advancement in the hierarchical utilization of energy within the methanol wash process, serving as a key element in driving the upgrade of this technological approach. This not only drives the iterative improvement of the low-temperature methanol washing process, but also provides practical experience that can be used as a reference for the green transformation of similar coal chemical and natural gas chemical projects, holding significant practical importance in helping to achieve the \"dual carbon\" goals.