Light hydrocarbon non-hydrogenation modified catalyst, preparing process and application thereof

A non-hydrogen upgrading and catalyst technology, applied in the treatment of hydrocarbon oil, hydrotreating process, petroleum industry, etc., can solve the problems of low octane number and low octane number of gasoline, so as to improve the octane number and reduce the The effect of olefin content, good selective cracking activity

Inactive Publication Date: 2004-09-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the octane number of straight-run gasoline is very low, and mixing it with catalytic cracking gasoline will inevitably lead to a significant reduction in the octane number of gasoline

Method used

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  • Light hydrocarbon non-hydrogenation modified catalyst, preparing process and application thereof
  • Light hydrocarbon non-hydrogenation modified catalyst, preparing process and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0015] There are two methods for preparing the catalyst provided by the invention. One is to prepare the carrier first, then introduce the active component into the carrier by impregnation, and then carry out steam treatment to obtain the catalyst. The other method is to oxidize the active component When the carrier is prepared, it is added to it, and after molding and roasting, it is treated with steam to obtain the catalyst.

[0016] The first method provided by the present invention comprises:

[0017] (1) Mix HZSM-5 and α-alumina monohydrate powder at a dry basis weight ratio of 50-80:50-20

[0018] Shaping, drying, and roasting to obtain the carrier,

[0019] (2) impregnate the carrier prepared in step (1) with chlorinated mixed rare earth or antimony soluble salt solution, dry

[0020] roasted after drying,

[0021] (3) After step (2) is roasted, the catalyst is heated up to 500-600°C in the air flow, and then steamed with pure water.

[0022] The steam trea...

example 1

[0034] Preparation of the catalyst of the present invention.

[0035](1) Prepare the carrier: get 130 grams of HZSM-5 zeolite powder (produced by Shanghai Huaheng Catalyst Factory) with a silicon-aluminum ratio of 56, 70 grams of α-alumina monohydrate powder (produced by German Condea Company), mix well, add 2 A solution made of 1:1 nitric acid and 50 ml of water was kneaded into a mass, extruded into a strip with a diameter of 2 mm and a length of 3 to 5 mm in an extruder, dried at 110°C for 12 hours, and calcined at 570°C for 4 hours.

[0036] (2) Introduce active components: take 100 grams of the above-mentioned carrier, use 100 milliliters containing 1.35 grams of chlorinated mixed rare earths (produced by Inner Mongolia Baotou Rare Earth Industry Company, wherein lanthanum oxide 31%, cerium oxide 51%, praseodymium oxide 14%, neodymium oxide 4%, X-ray fluorescence analysis) aqueous solution was soaked at 60°C for 2 hours, dried at 110°C for 10 hours, and calcined at 550°C ...

example 2

[0040] Catalyst B is prepared by the method of example 1, and difference is that the carrier that (1) step is made is carried out steam treatment earlier, then introduces mixed rare earth with the method for (2) step, in the catalyst B that obtains, mixed rare earth oxide content is 0.45% by mass.

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Abstract

A modified catalyst of C3-C11 petroleum spirit, comprising 0.1-5.0 mass% of mixed rare-earth oxide or antimony trioxide, 95.0-99.1 mass% of carrying agent, wherein the carrying agent comprises 50-80 mass% of HZSM-5 zeolite and 20-50 mass% of gamma-aluminum oxide. The catalyst fits for low octane rating gasoline modification for boosting the octane and lowering olefin content.

Description

technical field [0001] The invention relates to a light hydrocarbon non-hydrogen upgrading catalyst and its preparation method and application, specifically, a catalyst for upgrading low-octane straight-run gasoline or light hydrocarbons in oilfields and its preparation method, and the used A method for upgrading straight-run gasoline or oilfield light hydrocarbons with the above-mentioned catalyst. Background technique [0002] With the increasing requirements of environmental protection, the new standard of gasoline composition content promulgated by the state recently stipulates that the olefin content in gasoline should be lower than 35%. At present, my country's gasoline is mainly made of catalytic cracking gasoline, and the olefin content is much higher than 35%. Especially heavy oil and gasoline fractions produced by the catalytic cracking process with high slag content, the olefin content remains the same only by improving the catalytic cracking technology. It is dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G69/04
Inventor 孙义兰林洁于中伟濮仲英
Owner CHINA PETROLEUM & CHEM CORP
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