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A kind of preparation method of catalytic cracking anti-calcium catalyst

A catalytic cracking and catalyst technology, applied in physical/chemical process catalysts, chemical instruments and methods, hydrocarbon oil cracking, etc., can solve the problem of low removal rate and achieve the effect of increasing total liquid yield and gasoline liquid yield

Active Publication Date: 2021-03-16
QINGDAO HUICHENG PETROCHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These three methods of calcium removal all have the problem of low removal rate

Method used

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  • A kind of preparation method of catalytic cracking anti-calcium catalyst
  • A kind of preparation method of catalytic cracking anti-calcium catalyst
  • A kind of preparation method of catalytic cracking anti-calcium catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) 12.82 kilograms of kaolin is beaten, add 0.99 kilograms of zirconium chloride, 0.91 kilograms of titanium chloride, filter,

[0036] (2) Dry and roast the filter cake obtained in step (1) at a temperature of 500° C. for 1 hour,

[0037] (3) re-beating and grinding the calcined material in (2), so that the average particle size is ≤5 μm,

[0038] (4) Add 11.65 kilograms of aluminum sol, 3.5 kilograms of modified REY successively in (3), acidify into gel,

[0039] (5) spray drying, the received particulate matter is roasted, washed and filtered, and rinsed with 0.45 kg of ammonium dihydrogen phosphate,

[0040] (6) Prepare the catalyst, which is denoted as catalyst KG-1.

Embodiment 2

[0042] (1) 18.46 kilograms of halloysite are beaten, add 1.78 kilograms of zirconium chloride, 1.53 kilograms of titanium chloride, filter,

[0043] (2) Dry and roast the filter cake obtained in step (1) at a temperature of 550° C. for 1.5 hours,

[0044] (3) re-beating and grinding the calcined material in (2), so that the average particle size is ≤5 μm,

[0045] (4) Add 12.59 kilograms of aluminum sol, 4.2 kilograms of modified REY successively in (3), acidify into gel,

[0046] (5) spray drying, the received particulate matter is roasted, washed and filtered, and rinsed with 0.50 kg of ammonium monohydrogen phosphate,

[0047] (6) Prepare the catalyst, which is denoted as catalyst KG-2.

Embodiment 3

[0049] (1) With 17.95 kilograms of kaolin beating, add 2.08 kilograms of zirconium chloride, 1.49 kilograms of titanium chloride, filter,

[0050] (2) Dry and roast the filter cake obtained in step (1) at a temperature of 600°C for 2 hours,

[0051] (3) re-beating and grinding the calcined material in (2), so that the average particle size is ≤5 μm,

[0052] (4) add 4.49 kilograms of pseudo-boehmite and 4.9 kilograms of modified REY successively in (3), acidify into gel,

[0053] (5) spray drying, the received particulate matter is roasted, washed and filtered, and rinsed with 0.62 kilograms of ammonium dihydrogen phosphate,

[0054] (6) Prepare the catalyst, which is denoted as catalyst KG-3.

[0055] Analysis Catalyst KG-1, Catalyst KG-2, Catalyst KG-3, and Catalyst DB-1 are common catalysts without anti-calcium modification produced by Huicheng Environmental Protection Technology. The analysis result of catalyst in the example is as follows

[0056] Table 1 catalyst ana...

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Abstract

The invention discloses a preparation method of a catalytic cracking anti-calcium catalyst. The method comprises the following steps that 1, clay beating is conducted, a zirconium compound and a titanium compound are added, and filtration is conducted; 2, filter cakes obtained in the step 1 are dried and calcinated, and the calcination temperature is 400-600 DEG C, and the time is 0.5-2 hours; 3,calcined materials in the step 2 are beat and ground again, and the average particle size is smaller than or equal to 5 microns; 4, an aluminum compound and modified REY are sequentially added into slurry obtained by the step 3, and acidification is conducted to obtain gel; 5, spraying drying is conducted, collected particles are calcined, washed and filtered, and a phosphorus compound is rinsed;6, the filter cakes obtained in the step 5 are dried to prepare the catalyst. In industrial application, through addition of the anti-calcium catalyst, the total liquid yield of products is increased,and the gasoline liquid yield is also increased.

Description

technical field [0001] The invention relates to a preparation method of a catalytic cracking catalyst, in particular to a preparation method of a catalytic cracking anti-calcium catalyst. Background technique [0002] Most of the high-calcium crude oil discovered so far is distributed in many oil fields in my country except Daqing and Jilin in northeast China, such as Shengli Oilfield, Dagang Oilfield, Karamay Oilfield, Liaohe Oilfield, etc., as well as San Joaquin Valley Oilfield in the United States. [0003] High calcium content in raw oil will lead to residual oil cracking catalyst poisoning, agglomeration, light oil yield reduction, blockage of riser reactor, and fluidization interruption accident. [0004] At present, the methods for removing calcium from raw oil include: 1. Add several chelating agents to chelate organically bonded calcium-containing compounds into water-soluble compounds, which are removed during dehydration and desalination of crude oil. 2. Add com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J21/06C10G47/02
CPCB01J21/066C10G47/02C10G2300/202C10G2300/70C10G2400/02
Inventor 李凤卢宗良高明军王鹏张晓佳
Owner QINGDAO HUICHENG PETROCHEM TECH
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