Liquid catalyst and application thereof

A catalyst, liquid technology, applied in the field of liquid catalysts, can solve the problems of low conversion rate and short single-pass life of the catalyst, and achieve the effects of high reaction activity, high conversion rate, and avoidance of deactivation

Pending Publication Date: 2020-09-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, in the hydrocarbon cracking hydrogen production technology, the use of alkane dehydrogenation catalysts for hydrogen production has made great progress, but there are still problems of low conversion rate and short life of the catalyst in one pass. At the same time, the stability of the catalyst needs to be further strengthened.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The liquid catalyst is composed of four substances, which are 70% tin, 10% titanium, 17% iron, and 3% titanium carbide. Reaction temperature: 1600°C. The raw material is composed of 60% methane, 22% ethane, 10% propane and 8% butane, and the volume space velocity of the raw material (gas) is 6000h －1 , The depth of the raw material inlet in the liquid catalyst is 1.5m.

[0036] Reaction result: hydrocarbon conversion rate 97.5%, hydrogen selectivity 98.3%.

Embodiment 2

[0038] The liquid catalyst consists of four substances, namely 80% gallium, 6% sodium, 10% titanium and 4% titanium carbide. Reaction temperature: 1800°C. The raw material is pure methane, and the volumetric space velocity of the raw material (gas) is 3500h －1 , The depth of the raw material inlet in the liquid catalyst is 2.6m.

[0039]Reaction result: methane conversion rate 98.3%, hydrogen selectivity 98.5%.

Embodiment 3

[0041] The liquid catalyst consists of five substances, namely 61.5% bismuth, 10% nickel, 20% cobalt, 4% nickel carbide and 4.5% cobalt carbide. The raw material is straight-run naphtha, and the volumetric space velocity of the raw material (liquid) is 2.0h －1 , The depth of the raw material inlet in the liquid catalyst is 1.5m. Reaction temperature: 1200°C.

[0042] Reaction result: raw material conversion rate 94.5%, hydrogen selectivity 97.2%.

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PUM

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Abstract

The invention discloses a liquid catalyst and application thereof. The liquid catalyst is used for catalytic cracking of hydrocarbons, and is composed of a first component and a second component, wherein the first component is selected from a metal simple substance or alloy, and the second component is selected from a metal carbide. When the liquid catalyst is used for catalytic cracking of hydrocarbons, carbon and hydrogen are generated, products can be directly separated and utilized in the whole catalytic cracking reaction process, no by-product is generated, the catalytic efficiency of theliquid catalyst is high, and the hydrocarbon conversion rate is high.

Description

technical field [0001] The invention relates to the technical field of petrochemical industry, in particular to a liquid catalyst and its application. Background technique [0002] h 2 And carbon is a basic chemical product with a wide range of applications and an irreplaceable role. With the adjustment of the national automobile industry policy and the development of hydrogen fuel cell technology, the demand for high-purity hydrogen is increasing. [0003] Coal-to-hydrogen and natural gas-to-hydrogen have cost advantages and are H 2 However, the content of carbon oxides in the hydrogen products prepared by these two processes is too high, and the deep purification is difficult, which limits the application of coal-to-hydrogen and natural gas-to-hydrogen in new energy vehicles. The carbon in raw materials in traditional coal-to-hydrogen and natural gas-to-hydrogen production is CO 2 The form of direct emptying, the carbon emissions are huge, the pollution is serious, and...

Claims

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Application Information

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IPC IPC(8): B01J27/22C01B32/05C01B3/26
CPCB01J27/22C01B32/05C01B3/26C01B2203/0277C01B2203/1041C01B2203/1047C01B2203/1052C01B2203/1058C01B2203/1241C01B2203/1252C01B2203/1247
Inventor 张国良魏小波刘丹禾毛继平杨莹刘九林何文江莉田进锋
Owner CHINA PETROLEUM & CHEM CORP
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