Process for converting C2—C5 hydrocarbons to gasoline and diesel fuel blendstocks

    公开(公告)号:US10941357B2

    公开(公告)日:2021-03-09

    申请号:US16386190

    申请日:2019-04-16

    Abstract: Disclosed is a process for converting C2-5 alkanes to higher-value C5-24+ hydrocarbon fuels and fuel blendstocks including reacting the C2-5 alkanes in a thermal olefination reactor operating at a temperature, pressure and space velocity to convent the alkanes to olefins and in the absence of both a dehydrogenation catalyst and steam. At least a portion of the product olefin stream is oligomerized using a zeolite catalyst to crack, oligomerize and cyclize the product olefins to form the fuel products, which are then recovered. The process is useful in removing sulfur and nitrogen-based compounds in a single step process, while reducing total costs of processing and eliminating the need for additives used in the field.

    PROCESSES FOR CONVERTING C2-C5 HYDROCARBONS TO GASOLINE AND DIESEL FUEL BLENDSTOCKS

    公开(公告)号:US20200331824A1

    公开(公告)日:2020-10-22

    申请号:US16918324

    申请日:2020-07-01

    Abstract: Disclosed herein are processes for the production of hydrocarbon fuel products from C2-5 alkanes. Methane is converted to ethylene in a methane thermal olefination reactor operating at a temperature of at least 900° C. and a pressure of at least 150 psig, and without a dehydrogenation catalyst or steam. C2-5 alkanes are converted to olefins in a C2-5 thermal olefination reactor operating at a temperature, pressure and space velocity to convert at least 80% of the alkanes to C2-5 olefins. The ethylene and C2-5 olefins are passed through an oligomerization reactor containing a zeolite catalyst and operating at a temperature, pressure and space velocity to crack, oligomerize and cyclize the olefins. In one aspect, methane in the effluent of the oligomerization reactor is recycled through the C2-5 thermal olefination reactor. Methods for the thermal olefination of methane are also disclosed.

    Systems and Methods for Blending Hydrocarbons into Gasoline

    公开(公告)号:US20200248088A1

    公开(公告)日:2020-08-06

    申请号:US16781709

    申请日:2020-02-04

    Abstract: A system for forming blended gasoline from gasoline and butane includes a gasoline inlet configured to receive the gasoline, a butane inlet configured to receive the butane, and a first mixing section in which the gasoline and the butane mix to thereby form a rough blended gasoline. A second mixing section downstream from the first mixing section further mixes the rough blended gasoline with additional amounts of the gasoline or the butane until a final blended gasoline forms in the second mixing section. The final blended gasoline dispenses from the second mixing section via an outlet.

    Process for producing transport fuel blendstock

    公开(公告)号:US10557090B2

    公开(公告)日:2020-02-11

    申请号:US15844210

    申请日:2017-12-15

    Abstract: A process for producing transport fuel blendstocks comprises providing a first feedstock comprising butane and propane and a second feedstock comprising benzene and dehydrogenating the first feedstock in a first reactor to produce a C4 product comprising butane and butene and a C3 product comprising propane and propylene. The process also comprises oligomerizing the C4 product in a second reactor to produce a first transport fuel blendstock and alkylating the C3 product with the second feedstock in a third reactor to produce a second transport fuel blendstock.

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