A kind of fcc gasoline desulfurization hydrogenation upgrading method

A technology for hydrogenation and upgrading of gasoline, applied in chemical instruments and methods, processing hydrocarbon oil, refining hydrocarbon oil, etc. The effect of high reactive site density

Active Publication Date: 2020-11-17
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But correspondingly, the synthesis of multi-level pores is more difficult, and there are few reports on the synthesis of multi-level porous molecular sieves in the prior art

Method used

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  • A kind of fcc gasoline desulfurization hydrogenation upgrading method
  • A kind of fcc gasoline desulfurization hydrogenation upgrading method
  • A kind of fcc gasoline desulfurization hydrogenation upgrading method

Examples

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Embodiment 1

[0028] A preparation method and a hydrogenation upgrading method of a catalyst for improving gasoline hydrogenation upgrading performance:

[0029] A. Add 0.35g sodium hydroxide, 1.04g sodium aluminate, 1.0g 18-crown-6, 0.034g sodium phosphate, 4.74g deionized water and 6.3g silica sol into the reaction kettle and stir at 25 degrees Celsius dissolved as solution I;

[0030] B. Add 0.12g 3-mercaptopropyltrimethoxysilane, 0.15g sodium hydroxide and 2g deionized water into the beaker and stir to dissolve, as solution II;

[0031] C. Add solution II dropwise to solution I and stir for 3 hours, then age at 25 degrees Celsius for 24 hours, then transfer to a reaction kettle and crystallize at 100 degrees Celsius for 96 hours to obtain a PtRu / EMT-FAYU zeolite microcrystalline emulsion;

[0032] D, the P123 organic matter of 2g is joined in the hydrochloric acid solution to dissolve and disperse, drop the tetraethyl orthosilicate of 4.28g and the EMT-FAU zeolite microcrystalline emul...

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Abstract

The invention relates to a method for improving the performance of gasoline hydrogenation modification. Catalyst HDS activity evaluation uses FCC gasoline as raw material. The vulcanizing agent used in HDS evaluation is cyclohexane solution containing 2m% CS2. The evaluation process of catalyst HDS activity is as follows: first, presulfurization is carried out, the loading amount of catalyst is 2g, the pressure is adjusted to 2.5MPa, and the gas flow rate is 25ml·min ‑1 , turn on the load switch of the reactor, adjust the temperature controller of the reactor to raise the temperature, and when the temperature measuring display of the reactor shows 150°C, open the pre-vulcanization valve on the panel of the device to start the pre-vulcanization. h 2 / Oil volume ratio is 300, WHSV is 1.82h ‑1 , pre-sulfurized for 4 hours, and then switched the raw oil for reaction. HDS evaluation conditions are: temperature 260°C, H 2 / Oil volume ratio 200, pressure 2.0MPa, WHSV 2.0h ‑1 , the use of multi-stage molecular sieve composite catalysts for FCC gasoline hydro-upgrading process shows a high hydrodesulfurization rate, and maintains the octane number of FCC gasoline to the greatest extent, showing excellent hydro-upgrading performance.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular to a method for hydrodesulfurization and hydrogenation upgrading of FCC gasoline. Background technique [0002] With the increasingly stringent automotive gasoline standards and environmental protection regulations, countries around the world have adopted different measures to improve the quality of gasoline products. The general trend is deep desulfurization, olefin reduction and aromatics content control to produce clean gasoline with low sulfur and olefins. my country's motor gasoline mainly comes from FCC gasoline, which is characterized by high sulfur and high olefins. The sulfur oxides generated by the high-temperature combustion of sulfur in gasoline not only pollute the environment, but also increase CO and NOx emissions. Olefin is an unstable factor in gasoline, which is easy to form colloid and is the main source of carbon deposit. Therefore, FCC gasoline desulfuriza...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/78C10G45/12C10G45/14
CPCB01J29/005B01J29/0341B01J29/78C10G45/12C10G45/14C10G2300/202
Inventor 高道伟吕一品李书娜
Owner UNIV OF JINAN
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