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ExxonMobil licenses new technology to produce renewable diesel

ExxonMobil licenses new technology to produce renewable diesel
Photo courtesy of ExxonMobil

ExxonMobil Catalysts and Licensing LLC has introduced a new process technology available for licensing that converts feedstocks including, but not limited to, vegetable oils, unconverted cooking oil and animal fats, into renewable diesel. 

Regionally diverse fuels regulations are helping to drive demand for renewable diesel made from bio-feedstocks. One challenge when converting vegetable oils and fats into renewable diesel is the high cloud point of n-paraffins, making the selection of the right process technology and dewaxing catalyst critical for meeting diesel cold flow specifications.

The ExxonMobil Renewable Diesel (EMRD) process technology is a two-stage process in which hydrotreating and dewaxing are controlled separately. Compared to a single-stage process, this approach provides higher diesel yields and superior control, ExxonMobil claims. The EMRD process also provides the potential to produce jet fuel as a secondary product with added fractionation. 

The EMRD process is an integrated solution that leverages ExxonMobil’s Bio Isomerization Dewaxing (BIDW™) catalyst. This provides refiners and biofuel producers with powerful dewaxing in both winter and summer modes. ExxonMobil sys Improved yields were demonstrated during its testing of BIDW catalyst compared to other internally formulated zeolite-based alternatives. 

“Choosing the right process technology is critical to producing both renewable diesel and jet fuel from bio-feedstocks. The EMRD process provides an advanced solution that enables high yields while meeting stringent seasonal product specifications,” said James Ritchie, president of ExxonMobil Catalysts and Licensing LLC. 

ExxonMobil is also developing advanced catalyst and process technology solutions that will offer EMRD process licensees flexibility to tailor the amount of jet fuel versus diesel produced, because of significant interest in producing renewable jet fuel as a primary product.