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Hydrocarbon desulfurizer

A desulfurizer and hydrocarbon oil technology, which is applied in refined hydrocarbon oil, petroleum industry, molecular sieve catalysts, etc., can solve the problems of long time and achieve the effects of cracking inhibition, high acid density, and high hydrothermal stability

Inactive Publication Date: 2006-06-28
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method takes a long time and needs to be regenerated with hydrogen

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0018] The preparation method of the desulfurizing agent provided by the present invention is as follows: mix the precursor of the inorganic oxide with the clay according to a predetermined amount and prepare it into a slurry with a solid content of 10-50% by weight with decationized water, and adjust its pH with an inorganic acid And maintain it to 2-4, after standing and aging at 20-80°C for 0-2 hours, add a predetermined amount of zeolite, homogenize, spray molding, and wash to remove free Na + ,dry.

[0019] Wherein the precursor of the inorganic oxide is selected from: alumina sol, pseudo-boehmite, silica sol and mixtures thereof and silica-alumina sol or gel, preferably a mixture of aged pseudo-boehmite and alumina sol, aging The weight ratio of the pseudo-boehmite to the alumina sol binder (calculated as alumina) is 0.1-10, preferably 0.5-7.0.

[0020] The aged pseudo-boehmite slurry can be prepared by a conventional method, such as beating pseudo-boehmite and water, s...

Embodiment 1-2

[0034] These examples illustrate: the preparation of the monozeolite desulfurizers provided by the present invention with clay as the matrix and pseudo-boehmite as the binder and the performance of these desulfurizers on a continuous micro-reactor device.

[0035] Using heavy gasoline (with a sulfur content of 1844.9mg / L) with a distillation range of 90-202°C as the reaction raw material, the evaluation tests on the desulfurizers PDS2 and APDS2 were carried out on the continuous micro-reactor device, and the test conditions were 5.0 grams of desulfurizer , reaction temperature 350°C, weight hourly space velocity 4 hours -1 , The weight ratio of agent to oil is 10. Table 1 lists the reaction results.

Embodiment 3-4

[0040] Using heavy gasoline with a distillation range of 90-202°C (with a sulfur content of 1844.9 mg / L) as the reaction raw material, the evaluation tests were carried out on the desulfurizers PDS1 and PDS3 on the continuous micro-reactor device, and the test conditions were 5.0 grams of desulfurizers. , reaction temperature 350°C, weight hourly space velocity 4 hours -1 , The weight ratio of agent to oil is 10. Table 2 lists the reaction results.

[0041] It can be seen from Table 2 that the desulfurization agent contains an appropriate amount of phosphorus compounds, which is beneficial to the desulfurization effect.

[0042] gasoline feedstock

[0043] gasoline feedstock

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PUM

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Abstract

A kind of hydrocarbon-oil desulfuration agent contains, on the catalyst-weight basis, 15-60% phosphorus-modified and rare-earth-contained Y type zeolite, 10-60% inorganic oxide, and 0-75% clay; and phosphorus-modified and rare-earth-contained Y type zeolite contains, in weight percent, 0.5-8% phosphorus in presence as P2O5 and 18-35% rare-earth in presence as RE2O3, Moreover, the proportion of silicon and aluminium in zeolite is lower than 6.

Description

technical field [0001] The invention belongs to the refining of hydrocarbon oil in the absence of hydrogen, more specifically, a desulfurizer for reducing the sulfur content of gasoline. Background technique [0002] With the increase of the processing capacity of high-sulfur crude oil, the sulfur content in oil products also increases accordingly, and the environmental pollution is aggravated, which has aroused widespread concern in various countries. In developed countries, the gasoline specification control index is to limit the gasoline sulfur content to less than 50ppm, and the diesel specification control index is to limit the diesel sulfur content (mass fraction) to less than 0.05% by weight. At present, my country requires that the sulfur content of gasoline products is less than 800ppm, and that the sulfur content of diesel products is not higher than 0.2 wt%. The most effective way to reduce the sulfur content of gasoline and diesel is to use hydrofining or hydro-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/08B01J27/16C10G11/05C10G29/00
Inventor 刘宪龙张久顺许友好龙军何鸣元
Owner CHINA PETROLEUM & CHEM CORP
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