MUMBAI, India, July 25 -- Intellectual Property India has published a patent application (202547067801 A) filed by Shell Internationale Research Maatschappij B. V., Hague, Netherlands, on July 16, for 'system and method for hydroprocessing high chloride feedstocks.'

Inventor(s) include Perry, Stephen Randolph; Witte, Gerard Pieter; Agarwal, Deepak; Bandyopadhyay, Subhransu; Beijnum, Johannes; Bueno De Mesquita, Janbart; Street, Mike; and Anderson, Russell Lee.

The application for the patent was published on July 25, under issue no. 30/2025.

According to the abstract released by the Intellectual Property India: "A system for hydroprocessing a hydrocarbon feedstock having a first stage including one or more first reactors that may receive the hydrocarbon feedstock and convert the hydrocarbon feedstock into an intermediate product. The feedstock has a total chlorine (Cl) content greater than 3 parts per million weight (ppmw), and the intermediate product includes hydrogen chloride (HCl), ammonia (NH3), and an ammonium salt. The system also includes a heating system having a plurality of heat exchangers arranged in a loop and having a heat transfer fluid that may recover and dispense heat to one or more fluids in the first stage. At least one heat exchanger of the plurality of heat exchangers is disposed between the first stage and a separation section, and the at least one heat exchanger may maintain a temperature of the intermediate product above a desublimation temperature of ammonia with hydrogen halide."

The patent application was internationally filed on Dec. 28, 2023, under International application No.PCT/US2023/086123.

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