Petroleum hydrocarbon catalytic pyrolysis catalyst and its application

A catalyst and naphtha technology, which is applied in the petroleum industry, reforming naphtha, organic chemistry, etc., can solve the problems of low implementability, low raw material concentration, and small catalyst raw material processing capacity, and achieve good industrial application Value and prospect, high reaction gas space velocity, effect of increasing throughput

Active Publication Date: 2007-05-02
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the raw material concentration of this process is low, the raw material processing capacity of the catalyst is small, and the industrial feasibility is not large.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] ZRP(SiO 2 / Al 2 o 3 molar ratio 200), lanthanum acetate, sodium metavanadate, and potassium dihydrogen phosphate are mixed, then 200ml of distilled water is added, fully stirred at 40°C, dried at 120°C, and roasted at 800°C for 4 hours. catalyst. In the catalyst (weight content), lanthanum accounts for 4.64%, vanadium 4.66%, and phosphorus 0.85%.

[0033] Using the above catalyst, naphtha is used as raw material, the weight ratio of water and naphtha is 0.592, and the weight space velocity is 5.12hr -1 , when the reaction temperature was 750°C, the product yield (relative to raw material) of catalytic cracking was shown in Table 1:

[0034] composition

Embodiment 2

[0036] ZRP(SiO 2 / Al 2 o 3 The molar ratio is 200), lanthanum oxide, barium oxide, and potassium dihydrogen phosphate are mixed, and then the binder is added as starch, fully stirred, kneaded, and then extruded. The molded catalyst was dried at 120° C. and calcined at 800° C. for 4 hours to prepare the catalyst. In the catalyst (weight content), lanthanum accounts for 10.41%, barium 5.33%, and phosphorus 0.70%. Under the processing condition identical with embodiment 1, use above-mentioned catalyst to carry out catalytic cracking reaction, product yield (relative raw material) sees Table 2:

[0037] composition

Embodiment 3

[0039] ZRP(SiO 2 / Al 2 o 3 The molar ratio is 180), lanthanum oxide, sodium metavanadate, and boron oxide are mixed, and then the binder is added as starch, fully stirred, kneaded, and then extruded. The molded catalyst was dried at 120° C. and calcined at 800° C. for 4 hours to prepare the catalyst. In the catalyst (weight content), lanthanum accounts for 10.1%, vanadium 2.47%, and boron 1.84%.

[0040] Use above-mentioned catalyzer, take naphtha as raw material, under the processing condition identical with embodiment 1, the product yield (relative raw material) of catalytic cracking is shown in Table 3:

[0041] composition

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PUM

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Abstract

This invention provides a petroleum hydrocarbon catalytic decomposition accelerant and its application. This accelerant includes following components: (1) lanthanide, its weight amount is 0.1-25%; (2) phosphorus or boron, its weight amount is 0.1-10%; (3) base metal, alkali metal and transition metal, their weight amount is 0.1-15%; (4) The others are ZSM-5,ZRP used as carrier. This accelerant used for production of low carbon alkenes by cracking heavy magnesium alkanes, with space velocity of gas 1-25hr-1, such as naphtha, diesel oil, educed pressure diesel and so on. The yield of ethylene, propylene, butylenes and butadiene will improve by 5%.

Description

technical field [0001] The invention relates to a catalyst for producing low-carbon olefins by catalytic cracking of petroleum hydrocarbons and its application, more specifically, the invention relates to a catalyst for producing ethylene and propylene by catalytic cracking of petroleum hydrocarbons and its application. Background technique [0002] Ethylene and propylene are important basic raw materials in petrochemical industry and the basis for the production of various important organic chemical products. At present, the production of olefins by tube furnace steam thermal cracking is still the main method for the production of low-carbon olefins in the petrochemical industry. Due to the limitations of consumption, high temperature resistant pipes and other factors, it is very unlikely to further increase the yield of ethylene and propylene in the tube furnace steam thermal cracking process. However, the method for producing olefins by catalytic cracking using a heterog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G35/095C07C5/333C07C5/41C07C11/02
Inventor 茅文星王萍陈硕王永春李小平郭敬杭巴海鹏吴庆凤
Owner CHINA PETROLEUM & CHEM CORP
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