DuPont Technology Enables Sinochem Quanzhou Petrochemical Company to Produce Euro V Diesel in Largest IsoTherming® Unit in the World

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Project Boasts Diesel Product Quality Improvement from Euro IV to Euro V

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This is the world’s largest capacity IsoTherming® unit, utilizing DuPont’s liquid full reactor and catalyst systems. This project showcases the value IsoTherming® technology can bring to producing Euro V diesel from difficult cracked feedstocks.

DuPont Clean Technologies (DuPont) is pleased to announce that the world’s largest DuPont™ IsoTherming® unit has successfully completed the performance test, certifying that the unit is meeting performance guarantees. The IsoTherming® hydrotreater at Sinochem’s Quanzhou refinery is designed to process 78,500 BPSD (3.95 ktpa) of a variety of cracked feedstocks to produce diesel with less than 10 ppm sulfur.

Capital cost advantages, as well as the need for reduced utility requirements, were key drivers for SinoChem’s selection of IsoTherming® technology for this project.

"We were thrilled to partner with Sinochem on this opportunity,” said Glenn Liolios, global business manager for IsoTherming® technology. “This is the world’s largest capacity IsoTherming® unit, utilizing DuPont’s liquid full reactor and catalyst systems, producing Euro V diesel. This project showcases the value IsoTherming® technology can bring to producing Euro V diesel from difficult cracked feedstocks.”

IsoTherming® hydroprocessing technology employs a novel reactor system that is superior to conventional hydroprocessing technologies because it uses the hydrogen and catalyst more efficiently. IsoTherming® technology offers lower capital and operating costs while significantly reducing sulfur content in the finished diesel product. Today, DuPont has 25 IsoTherming® licenses globally, with 11 of these in commercial operation. IsoTherming® technology is suitable for a wide range of applications, including kerosene hydrotreating, transmix hydrotreating, diesel hydrotreating, FCC feed hydrotreating, mild hydrocracking, dewaxing, gas-to-liquid (GTL) upgrading and heavy oil upgrading for both grassroots and revamp configurations. IsoTherming® capacities range from 1,500 bpd up to 80,000 bpd processing feedstocks such as 100 percent kerosene, 100 percent light-cycle oil (LCO) and various mixtures of distillates and heavy gas oils, including coker blends.

Growing global demand for transportation fuel continues to drive refiners toward operations that maximize hydroprocessing capacity and capability either through unit debottlenecks or new unit construction. More stringent environmental regulations and the processing of cost-advantaged sour and heavy feed stocks make meeting this demand even more challenging. Typical hydroprocessing techniques use hydrogen in contact with a solid catalyst to remove sulfur and other contaminants from petroleum liquids. IsoTherming® hydroprocessing technology is licensed and marketed by DuPont as part of its Clean Technologies portfolio in Overland Park, Kansas.

The DuPont Clean Technologies division applies real-world experience, history of innovation, problem-solving success, and strong brands to help organizations operate safely and with the highest level of performance, reliability, energy efficiency and environmental integrity. Our Clean Technologies portfolio includes STRATCO® alkylation technology for production of clean, high-octane gasoline; IsoTherming® hydroprocessing technology for desulfurization of motor fuels; MECS® sulfuric acid production and regeneration technologies; BELCO® air quality control systems for FCC flue gas scrubbing, other refinery scrubbing applications and marine exhaust gas scrubbing; MECS® DynaWave® technology for sulfur recovery and tail gas-treating solutions; and a comprehensive suite of aftermarket service and solutions offerings. Learn more about DuPont Clean Technologies at

DuPont (NYSE: DD) has been bringing world-class science and engineering to the global marketplace in the form of innovative products, materials and services since 1802. The company believes that by collaborating with customers, governments, NGOs, and thought leaders we can help find solutions to such global challenges as providing enough healthy food for people everywhere, decreasing dependence on fossil fuels, and protecting life and the environment. For additional information about DuPont and its commitment to inclusive innovation, please visit

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Jeannie Branzaru
DuPont Clean Technologies
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Glenn Liolios
DuPont™ IsoTherming® Technology
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