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The new isopropanol process has made great progress compared with the existing processes, which has solved the problem of high energy consumption for isopropyl alcohol production for a long time, and has an important effect on improving the profitability of isopropyl alcohol products and improving the competitiveness of national industrial fist products. significance. According to Dr. Zhang Yudong, head of the Jinzhou Petrochemical Research Institute, the newly-developed isopropyl alcohol process package uses a large number of integrated innovations. It is a proven technology that has been validated by industrial plants or laboratory pilot plants. The new process is comparable to the current process. The single-pass yield of isopropyl alcohol increased by 10%, the material consumption decreased by 5%, and the comprehensive energy consumption decreased by 49.2%.
In recent years, the consumption of isopropyl alcohol in China has been growing rapidly. Apparent consumption increased from 97,000 tons in 1998 to 196,000 tons in 2005, with an average annual growth rate of 9.2%. Jinzhou Petrochemical Company's isopropanol plant has not been able to meet market demand after several expansions, and it needs a lot of imports each year, and the import volume has been increasing year by year. Through contact with foreign IPO technology holders, they only talk about market cooperation and do not transfer technology. In order to meet the actual domestic production demand, Jinzhou Petrochemical Company adopts independent development technology and plans to build a new set of 100,000 tons of isopropyl alcohol production equipment during the “Eleventh Five-Year Plan†period to form a large-scale production, and will implement isopropyl alcohol joint production. Propyl ether, developed multiple brands of isopropyl alcohol downstream products. At that time, Jinzhou Petrochemical Company will become the largest isopropyl alcohol manufacturer in Asia. It is estimated that by 2008, the total production capacity of isopropyl alcohol in China will reach 230,000 tons.
Jinzhou Petrochemical Company's isopropyl alcohol products are of stable quality and high purity. The product specifications have reached the standards of Shell and Exxon International, and have won the recognition of users from Japan and Southeast Asian countries. However, due to the unreasonable utilization of energy in the reaction and separation process, the energy consumption per ton of products is high and the market competitiveness of products is reduced.
In order to improve the market competitiveness of isopropyl alcohol products, new processes must simultaneously meet the requirements of improving product quality and reducing energy consumption. 100,000 tons of isopropanol technology package development process uses a combination of computer simulation and industrial and laboratory test certificates. The principle process of isopropyl alcohol refining process is unchanged, only impurity removal process is added, and product refining methods are not simplified. product quality. This new technology optimizes process conditions, reduces excess process conditions, improves energy utilization, and reduces process energy consumption. In addition, the optimized heat exchange process for the reaction process was validated by a 50,000-ton/year isopropanol plant, and the optimization of the reaction and tower separation process was verified by a laboratory pilot plant. The heat exchange process in the separation process was verified by three types of software. .
The reporter was informed on November 8th by China National Petroleum Corporation Jinzhou Petrochemical Company that under the joint efforts of Jinzhou Petrochemical Design Institute, Jinzhou Petrochemical Research Institute and isopropyl alcohol plant, the successful completion of the 100,000 tons/year isopropyl alcohol process package in 3 years Development and test work and laboratory verification of key parts.