Chuangju Technology’s “Research and Application on Methanol Distillation for Quality Improvement and Efficiency Enhancement” passed the **evaluation of scientific and technological achievements

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Chuangju Technology’s project on \"Research and Application of Methanol Distillation for Improved Quality and Efficiency\" passed the **evaluation of scientific and technological achievements. Author/Source: Chuangju Technology; Date: April 15, 2021; Clicks: 40. On September 15, 2019, the renovation project of the 650,000 tons per year methanol distillation plant carried out by Tianjin Chuangju Technology Co., Ltd. (hereinafter referred to as \"Chuangju Technology\") for Yankuang Group Guohong Chemical Co., Ltd. (hereinafter referred to as \"Guohong Company\") was successfully commissioned after the first batch of material was fed into the plant. To date, the plant has been operating at full capacity for 18 months, producing over 2,050 tons of pure methanol per day. The ethanol content in this pure methanol is below 100 ppm, and the steam consumption per ton of methanol produced is only 0.85 tons, resulting in significant savings in energy and costs as well as improved efficiency. At the end of 2020, the China Coal Industry Association organized relevant experts to conduct an evaluation of the scientific and technological achievements related to the technology titled “Research and Application on Improving the Quality and Efficiency of Methanol Distillation”, which was jointly proposed by Guohong Company and Chuangju Technology. According to expert evaluation, this technological achievement has reached an “internationally advanced” level. “The research on \"Improving the Efficiency of Methanol Distillation\" focuses on analyzing the fluid distribution within the distillation tower. By utilizing actual operation data from a 3+1 tower distillation system, the factors that limit the processing capacity of this distillation unit are identified, and the feasibility of various solutions is evaluated to determine the most economical and viable approach. The principle of the three-dimensional jet tray technology is studied by comparing it with high-throughput tray technologies. Fluid dynamic simulations of the three-dimensional jet tray are conducted to promote the industrial application of this technology in methanol distillation units and to enhance the processing capacity of the distillation towers. This study investigates the five-column three-effect methanol distillation technology; through process simulation software, it analyzes the optimal configuration for thermal coupling among the three effects in order to reduce the steam energy consumption during the distillation process. Various heat coupling control techniques are studied, including flow restriction and nitrogen ramming, in order to achieve stepless regulation of three-effect heat coupling and optimize the heat coupling efficiency under different production loads.