Recently, the 30,000-ton/year acetic acid hydrogenation to ethanol industrial demonstration plant designed and constructed by China Wuhuan Engineering Co., Ltd. was used at the Jiangsu Soap (Group) Co., Ltd. with the catalytic technology and molecular sieve membrane dehydration technology of the Dalian Institute of Chemical Physics, Chinese Academy of Sciences. The company successfully drove successfully and achieved smooth operation. As of the early morning of May 6, the device has been operating continuously for 8 days. The purity of anhydrous ethanol produced by the device has reached 99.6%, which is higher than the national standard for industrial ethanol in China. Since 2008, acetic acid has become an important coal chemical product in China as domestic companies gradually master the relevant technologies for acetic acid production. With the rapid development of the industry, the production of acetic acid is rapidly overcapacity and the price is sluggish. The production capacity of acetic acid in China has exceeded 10 million tons per year, while the traditional downstream industrial chain of acetic acid is weak, and the downstream demand for acetate, vinyl acetate, terephthalic acid and acetic anhydride has grown slowly, and it is urgent to develop new downstream products. With the advancement of technology and the development of market conditions, hydrogenation of acetic acid to ethanol has become one of the options. Ethanol is not only a basic organic chemical raw material and an important solvent, but also an ideal high-octane automotive fuel and additive. With the improvement of the environmental quality requirements, the development of alcohol fuels and the addition of ethanol to gasoline has become one of the major ways to improve automotive fuels. Ethanol products have a vast market and huge demand. China has a large population, lacks of arable land, insufficient food, and relatively insufficient oil resources, while coal resources are relatively abundant. The replacement of traditional grain fermentation routes with coal-to-ethanol hydrogenation of ethanol to replace traditional grain fermentation routes will have important strategic implications for reducing the industrial consumption of China's grain and alleviating the contradiction in the shortage of oil resources and safeguarding China's energy security. Hydrogenation of acetic acid to synthesize ethanol is the core unit of coal to methanol and acetic acid to ethanol technology. Due to the phenomenon of azeotropy between ethanol and water, since the 1980s with the development of membrane separation technology, pervaporation and steam infiltration technologies have been applied to the production of industrial anhydrous ethanol. The key to pervaporation and vapor permeation technology is the development of high performance separation membranes. Zeolite membranes have a regular pore structure, unique selective adsorption properties, and high temperature and organic solvent resistance, which is an advanced technology for the dehydration of low-energy ethanol aqueous solutions. technology. This demonstration of hydrogenation of acetic acid is an industrial technology that integrates efficient hydrogenation of acetic acid with low-energy molecular sieve membrane dehydration technology. The industrial demonstration project for the hydrogenation of acetic acid to ethanol is a subtopic of the project of the “Strategic Technologies and Demonstration of Low-rank Coal Cleaner and High-efficiency Cascade Utilization†project of the Chinese Academy of Sciences’ strategic pilot technology project. After the success of this trial run, it will not only create considerable economic benefits for the company, but also provide key technology and experience support for large-scale industrial plant construction, production and operation. Portable Emergency Light,Portable Flood Light Rechargeable,Portable Emergency Lamp,Portable Led Emergency Light NINGBO JIMING ELECTRIC APPLIANCE CO., LTD. , https://www.jimingemergencylight.com
The 30,000-ton/year acetic acid hydrogenation to ethanol industrial demonstration plant drove successfully