You are currently viewing: News


CNOOC Huizhou Petrochemicals achieve China VI diesel target with IsoTherming®

DuPont Clean Technologies is pleased to announce the successful performance test of a 3.4 million tons/year IsoTherming® diesel hydrogenation (DHT) unit by CNOOC Huizhou Petrochemicals Co., Ltd. at its Huizhou refinery in Guangdong, China. CNOOC completed calibration of the IsoTherming® DHT unit at 100% load in the third quarter of 2018, with the system meeting all design requirements and product quality targets. Earlier in 2018, the refinery also successfully started up a 2.6 million tons/year IsoTherming® vacuum gas oil (VGO) hydrogenation unit.

 “The DuPont IsoTherming® liquid phase hydrogenation technology is outstanding in terms of energy savings,” said Mr Chen Chun, Chief Engineer of the CNOOC Refining and Marketing Division. “Huizhou's 3.4 million tons/year diesel liquid phase hydrogenation unit consumes only 4.33 kg of oil equivalent (EO) / t of raw materials, far lower than the traditional trickle bed unit energy consumption.”

The IsoTherming® technology uses the reactor effluent as a liquid recycle stream rather than a recycle gas system to deliver the hydrogen required for chemical reactions.  This advanced technology eliminates the need for a costly recycle gas compressor, high pressure amine absorber and downstream high pressure separation equipment, thus significantly reducing the capital cost for the unit.  With the application of the recycle pump and the efficient use of the available heat from the reactor effluent, the unit operates with a significant reduction in operating costs as compared to conventional hydroprocessing technology. 

With a total installed capacity of 440,000 bpd (Phase I and Phase II), the CNOOC refinery, whose Phase II project went into operation in September 2017, has already previously invested in technology from DuPont Clean Technologies. This latest development follows the installation of emissions lowering technology provided by the BELCO® wet scrubbing catalytic cracking flue gas desulfurization technology, licensed by DuPont Clean Technologies, for two sets of fluid catalytic cracking flue gas dedusting units (FCCUs). The first is a 1.2 million tons/year FCCU while the second has a capacity of 4.8 million tons/year FCCU. The CNOOC Huizhou refinery also contains a 160 kmta alkylation unit utilizing the STRATCO® alkylation technology, also under license from DuPont Clean Technologies, to convert low value isobutane and olefins into high value alkylate, a key ingredient for the production of clean gasoline.

Mr. Eli Ben-Shoshan, Global Business Leader, DuPont Clean Technologies, commented, “We are delighted to support CNOOC with highly efficient and cost-effective technologies that allow the refinery to satisfy demand for cleaner transportation fuels in an economical way by reducing energy consumption and operating costs while meeting stringent quality and environmental standards.”

 The IsoTherming® technology is commercially proven to process a wide range of feedstocks, from kerosene to gas oils, including 100 percent light cycle oil. The units are designed to provide refiners with a constant saving on utilities in the magnitude of 30-60 percent compared to trickle bed technologies and the potential of 30 percent capital cost savings or more. To date, DuPont has 26 IsoTherming® hydroprocessing technology licenses globally. The IsoTherming® hydroprocessing technology is commercially proven in 16 operational units with capacities ranging from 1,500 bpd to 80,000 bpd processing a diverse set of feedstocks.

Other News Items

DuPont Clean Technologies launches Sennuba™ technology

DuPont Clean Technologies (DuPont), the supplier of world-leading scrubbing and other environmental technologies, has introduced a new, advanced steam plume suppression ...


DuPont Safety and Sustainability awards 2020 opens for entries

DuPont Sustainable Solutions (DSS) has announced the call for entries for the 2020 DuPont Safety and Sustainability Awards competition. As of 7 November 2019, industrial ...


Shenghong Petrochemical selects STRATCO® Alkylation Technology

DuPont Clean Technologies (DuPont) has been awarded contracts to supply Shenghong Petrochemical Group Co., Limited (Shenghong) with a STRATCO® alkylation technology ...


CNOOC Huizhou Petrochemicals achieve China VI diesel target with IsoTherming®

DuPont Clean Technologies is pleased to announce the successful performance test of a 3.4 million tons/year IsoTherming® diesel hydrogenation (DHT) unit by CNOOC ...


Alon Refining selects STRATCO® Alkylation Technology from DuPont Clean Technologies

DuPont Clean Technologies (DuPont) has been awarded the contract to supply Alon Refining Krotz Springs (Alon), a part of Delek US, with a license and engineering services ...


Kuwait refinery selects DuPont Clean Technologies

DuPont Clean Technologies signed contracts with Honeywell UOP to provide STRATCO® alkylation and MECS® Advanced sulfuric acid regeneration (SAR) technologies ...


CNOOC Orient Petrochemicals reduces emissions with DuPont™ BELCO® Wet Scrubbing

In an important move to improve air quality in Hainan Province, China, the CNOOC Orient Petrochemicals Co. Ltd. recently commissioned a DuPont™ BELCO® EDV® ...


Sinopec awards DuPont five STRATCO® alkylation technology licenses

DuPont Clean Technologies signs contracts with China Petroleum & Chemical Corporation for five grassroots STRATCO® alkylation units at five Sinopec refineries ...


Chinese Petroleum Corporation selects MECS® DynaWave® scrubbing system

The Chinese Petroleum Corporation awarded DuPont Clean Technologies the contract to supply the technology license, engineering and proprietary equipment for a MECS® ...


Dangote awards DuPont Clean Technology contracts for new oil refinery

DuPont Clean Technologies announced today that Dangote Oil Refinery Company Ltd has commissioned a range of advanced proprietary equipment from DuPont for the construction ...