Overview
PTA is an important raw material in the chemical industry and ethylene glycol (MEG) through state polymerization to produce polyethylene terephthalate, referred to as polyester (PET), more than 90% of the world is used to produce polyester. Hydrofining catalyst is very important to the production of PTA, before the hydrofiningsharp catalyst is not realized in China, this technology has been monopolized by foreign countries for a long time, the price is high, and a lot of foreign exchange needs to be consumed to buy. Shanghai Institute has been committed to the development of terephthalic acid hydrogenation refining catalysts for a long time, through continuous exploration and innovation, the creation of variant pore structures, and surface active material modification. Many technological breakthroughs have been made in the catalyst loading process and the stability of catalyst active components, and the CTP-lVCTA hydrofining catalyst has been successfully developed to break the long-term monopoly of foreign companies' palladium catalyst, the PTA core technology, in technology, market, and price, and has achieved significant economic and social benefits, and promoted the technical progress of PTAindustry.
The catalyst won 1 first prize in Science and technology progress of the Group company and 1 first prize in ShanghaiScience and Technology Progress; Won the second prize in national Science and Technology Progress; Won 1 ChinaPatent Excellence Award, and applied for 14 foreign invention patents and more than 50 domestic technology invention patents.
ClP series palladium-carbon catalysts
At present, the main brand of palladium carbon catalyst is CP-IVV catalyst, which has the characteristics of high palladium dispersion, reasonable palladium distribution, small microcrystalline grains, high content, and good stability.
The industrial test results show that CTp.lV catalyst has thee characteristics of high activity, good selectivity, strong 4-CBA treatment ability, good sulfur resistance,anti-interference performance, long catalyst life, etc. The comprehensive performance has reached the international advanced level, especially the catalyst life and stable operation ability at the international leading level.
Popularization and Application
TA hydrofining catalyst has been successfully applied in more than 20 sets of PTA plants in China, and the share of the Sinopec system is 100%.
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