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A kind of desulfurization treatment method of catalytic cracking gasoline

A technology for catalytically cracked gasoline and a treatment method, applied in the field of desulfurization treatment of catalytically cracked gasoline, can solve the problems of low hydrodesulfurization activity selectivity, large loss of octane number, etc., and achieve high hydrodesulfurization activity and selectivity, octane number and the like Low alkane loss and mild operating conditions

Active Publication Date: 2021-01-29
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The technical problem to be solved by the present invention is to carry out hydrodesulfurization treatment on FCC gasoline under mild operating conditions, which has flexible adaptability to raw materials, and mainly solves the hydrodesulfurization existing in the existing FCC gasoline hydrodesulfurization technology The problem of low activity and selectivity and large loss of octane number

Method used

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  • A kind of desulfurization treatment method of catalytic cracking gasoline
  • A kind of desulfurization treatment method of catalytic cracking gasoline
  • A kind of desulfurization treatment method of catalytic cracking gasoline

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Add 25 parts (mass ratio) of styrene, 75 parts of butadiene, 200 parts of deionized water, 3.0 parts of emulsifier sorbitan ester, 1.5 parts of electrolyte KCl, 0.09 parts of chelating agent ethylenediaminetetra Sodium iron acetate (EDTA), pre-emulsified for 20 minutes, after the temperature is cooled to 5°C, add 0.04 parts of dicumyl hydroperoxide and 0.04 parts of ferrous sulfate, and 0.20 parts of regulator tertiary dodecyl mercaptan. React at 5°C for 7 hours, control the conversion rate of the two monomers at about 60%, add a mercaptan terminator, and obtain a styrene-butadiene rubber emulsion with a particle size of about 200 nm.

[0039] Weigh 250 mL of deionized water with a beaker, add 12.0 g of 68% nitric acid into the deionized water, mix well, and place in a water bath at 80°C. Weigh 9.0 g of styrene-butadiene rubber emulsion and add it into the prepared deionized water nitric acid solution, and stir evenly to obtain an acid solution containing a pore-enlargi...

Embodiment 2

[0042] Add 30 parts (mass ratio) of styrene, 70 parts of butadiene, 200 parts of deionized water, 4.0 parts of emulsifier sorbitan ester, 1.0 parts of electrolyte KCl, and 0.12 parts of chelating agent ethylenediaminetetra Sodium iron acetate (EDTA), pre-emulsified for 30 minutes, after the temperature is cooled to 5°C, add 0.04 parts of dicumyl hydroperoxide and 0.04 parts of ferrous sulfate as initiator, and 0.40 parts of regulator tert-dodecyl mercaptan. React at 5°C for 7 hours, control the conversion rate of the two monomers at about 60%, add a hydroquinone terminator, and obtain a styrene-butadiene rubber emulsion with a particle size of about 100 nm.

[0043] Weigh 260mL of deionized water with a beaker, add 15.0g of acetic acid into the deionized water, mix well, and place in a water bath at 80°C. Weigh 15.0 g of styrene-butadiene rubber emulsion and add it into the prepared deionized water acid solution, and stir evenly to obtain the acid solution containing the pore-...

Embodiment 3

[0047] Add 35 parts (mass ratio) of styrene, 65 parts of butadiene, 200 parts of deionized water, 5.0 parts of dodecanoyldiethanolamide, 0.8 parts of electrolyte KCl, 0.10 parts of pH regulator KOH in a 10L polymerization kettle. Emulsify for 20 minutes, add 0.05 parts of initiator azobisisobutyronitrile and 0.60 parts of regulator tertiary dodecyl mercaptan after the temperature is cooled to 7°C, react at 7°C for 7 hours, and control the conversion rate of the two monomers at 60% Add mercaptan terminator left and right to obtain styrene-butadiene rubber emulsion with a particle size of about 50nm.

[0048] Weigh 260mL of deionized water with a beaker, add 18.0g of acetic acid into the deionized water, mix well, and place in a water bath at 80°C. Weigh 120.0 g of styrene-butadiene rubber emulsion and add it into the prepared deionized water acid solution, and stir evenly to obtain an acid solution containing a pore-enlarging agent. Weigh 300g of pseudo-boehmite powder and 15g...

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Abstract

The invention relates to a desulfurization treatment method for catalytic cracking gasoline, which adopts a fixed-bed reactor; the loaded cobalt-molybdenum catalyst containing a macroporous alumina carrier is a hydrodesulfurization catalyst, and the alumina carrier containing macropores is: 65-95wt%, the content of cobalt oxide is 1-5wt%, and the content of molybdenum oxide is 2-14wt%. Hydrodesulfurization process conditions are: reaction temperature 170-350°C, reaction pressure 1.0-3.0MPa, volumetric space velocity 1.5-4.5h ‑1 , the volume ratio of hydrogen to oil is 150‑450:1. The activity and selectivity of hydrodesulfurization are high, and the loss of octane number is small.

Description

technical field [0001] The invention relates to a desulfurization treatment method of catalytic cracking gasoline, which is used for hydrodesulfurization of catalytic cracking gasoline to produce gasoline products. Background technique [0002] In recent years, with the rapid development of the automobile industry, the number of automobiles in the world has increased sharply, and the environmental pollution caused by the harmful emissions of automobile exhaust is gradually being paid attention to by people. In order to reduce the emission of harmful substances in vehicle exhaust, countries all over the world have put forward higher and higher requirements for the quality of vehicle fuel. At the same time, my country has also accelerated the pace of upgrading the quality of gasoline, hoping to be in line with the international advanced automotive gasoline standards in a relatively short period of time. [0003] Different from foreign countries, in my country's gasoline pool,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G45/08B01J23/882B01J23/887B01J21/04B01J23/02B01J32/00
CPCB01J21/04B01J23/002B01J23/02B01J23/882B01J23/8872B01J2523/00C10G45/08C10G2300/1037C10G2300/202C10G2400/02B01J2523/31B01J2523/68B01J2523/845B01J2523/13B01J2523/305B01J2523/24
Inventor 王廷海龚光碧黄校亮李景锋常晓昕杨红强向永生张永泽杨博姚文君李自夏王书峰李燕
Owner PETROCHINA CO LTD
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