低温热耦合甲醇精馏装置通过考核

Core Viewpoint - The low-temperature heat-coupled methanol distillation technology developed by Longyu Coal Chemical Company has demonstrated significant savings in low-pressure steam and circulating water, achieving a steam consumption of less than 0.2 tons of steam per ton of refined methanol during a 72-hour continuous operation assessment [2][3]. Group 1: Technology and Innovation - The low-temperature heat-coupled methanol distillation technology is innovative and has been recognized for its effectiveness in reducing resource consumption [2][3]. - The technology was developed in collaboration with Guangdong University of Technology and Tianjin Huasail Heat Transfer Equipment Co., Ltd., and is applicable in various fields such as coal chemical and petrochemical industries [2][3]. - The research team modified the connection mode of the pressurized and atmospheric towers from series to parallel, incorporating a decompression tower and adjusting process parameters to reduce steam consumption [2][3]. Group 2: Operational Efficiency - The methanol distillation unit achieved a load of 105.5%, with steam consumption reduced from 1.08 tons to below 0.2 tons per ton of refined methanol, saving approximately 60 tons of low-pressure steam per hour [3]. - Circulating water consumption was reduced by about 5,000 tons per hour, with specific reductions of 3,000 tons per hour in the acetic acid unit and 2,000 tons per hour in steam condensate cooling [3]. - The refined methanol product's ethanol content was reduced to below 50 ppm, with an annualized production of over 100,000 tons of ultra-refined methanol [3]. Group 3: Future Directions - Longyu Coal Chemical Company aims to focus on high-end, green, and low-carbon development, emphasizing the research and application of new technologies, processes, and equipment to enhance the company's growth potential [4].