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AM-13-10 Custom Catalyst Systems for Higher Yields of Diesel

Brian Watkins Advanced Refining Technologies Chicago, IL Charles Olsen Advanced Refining Technologies Chicago, IL

Format:
Electronic (digital download/no shipping)

Associate Member, International Member, Petrochemical Member, Refining Member - $0.00
Government, NonMember - $35.00

Description:

In those areas of the world which are experiencing low costs of natural gas, the result has been a decrease in the cost of hydrogen, and this, combined with the growth in global demand for middle distillates, has prompted refiners to look to improve profitability by increasing middle distillate yields. Options under consideration have included operating an FCC (Fluid Catalytic Cracker) pretreater in a mild hydrocracking mode, switching to maximum LCO(1) (Light Cycle Oil) mode or extending the endpoint of feed to a ULSD (Ultra Low Sulfur Diesel) unit and converting the heavy fraction into diesel range material. The use of opportunity feedstocks and synthetic type feedstocks can also be considered(2). These approaches require specialized catalyst systems capable of providing some cracking conversion or changes to traditional unit operation, and careful attention must be given to minimizing production of excess gas and naphtha while maximizing diesel. Another seemingly simple option is to maximize the product volume swell from a current ULSD unit through a change in catalyst and understanding the demand on operating conditions. This approach to increasing diesel yields requires a detailed understanding of feed and operating conditions such that the hydrotreater can be operated at the maximum product volume swell for the majority of the unit cycle. In this case, the benefits of increased diesel yield need to be balanced against the potential costs of increased hydrogen consumption and decreased cycle length.

Product Details:

Product ID: AM-13-10
Publication Year: 2013