Petrotahlil :China’s Hengli Group has started up its new mixed-feed dehydrogenation plant in Dalian, China, using Clariant’s Catofin catalyst and McDermott’s Lummus process technologies.
The plant combines propane dehydrogenation (PDH) with iso-butane dehydrogenation (BDH) process technologies to produce over 1 million tonnes of olefins per year, becoming the world’s largest plant using Catofin catalyst technology, Clariant announced 15 Aug.
Catofin is a light paraffin dehydrogenation technology, with uses optimum thermodynamic operating conditions of vacuum and lower temperature for reactors to provide high yields. The process uses Clariant’s Catofin catalyst and patented metal-oxide heat generating material (HGM) to deliver high conversion rates.
Founded in 1994, Hengli Group is one of China’s foremost suppliers of petrochemicals.
Hengli Group’s new dehydrogenation plant in Dalian is designed to process 500 kilotonnes per annum (ktpa) of propane and 800ktpa of iso-butane feeds to produce propylene and iso-butylene.
“The fast, smooth and successful startup of this world’s largest paraffin dehydrogenation unit would not have been possible without reliable and experienced partners like Clariant,” said Guangqin Peng, chief engineer of Hengli Petrochemical (Dalian) Refinery Co Ltd.
The Hengli plant marks Clariant’s 21st Catofin unit in operation, totalling over 9 million tonnes of olefin production capacity globally.
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