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Process for preparing hydrocracking catalyst of high activity

A hydrocracking and catalyst technology, applied in catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of poor catalyst reaction activity, no significant improvement in medium oil selectivity, and low catalyst activity. Significant improvement and other problems, to achieve the effect of reducing BMCI value, improving performance, and high performance

Active Publication Date: 2009-01-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, from the perspective of the use effect, the reactivity of this type of catalyst is still poor (greater than 392 ° C), and the selectivity of medium oil has not been significantly improved.
[0006] CN1488726 (mesoporous molecular sieve and Y-type molecular sieve) and CN1667093 (Y-type molecular sieve and SAPO molecular sieve) etc. have disclosed the technology that contains mechanical mixing molecular sieve as hydrocracking catalyst component, but in the scheme that they relate to, mainly aim at processing For distillate oils with high impurities such as sulfur and nitrogen, the catalyst activity has not been significantly improved

Method used

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  • Process for preparing hydrocracking catalyst of high activity
  • Process for preparing hydrocracking catalyst of high activity
  • Process for preparing hydrocracking catalyst of high activity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The Y / β double microporous composite molecular sieve is synthesized by the synthesis method of the double microporous composite molecular sieve disclosed in Chinese patent CN1583562A, and the specific steps are carried out according to Embodiment 2 in the patent. The obtained Y / β double microporous composite molecular sieve is coded as YB1.

Embodiment 2

[0041] The Y / β double microporous composite molecular sieve is synthesized by the synthesis method of the double microporous composite molecular sieve disclosed in Chinese patent CN1583563A, and the specific steps are carried out according to Embodiment 4 in the patent. The obtained Y / β double microporous composite molecular sieve is coded as YB2.

[0042] The main physicochemical properties of the Y / β double microporous composite molecular sieve obtained in Examples 1-2 are shown in Table 1.

[0043] Table 1 Main physicochemical properties of Y / β double microporous composite molecular sieves

[0044]

Embodiment 3

[0046] Y-type molecular sieve is produced by Wenzhou Huahua Group Co., Ltd. NaY, and the number is Y1. Its basic physical and chemical properties are listed in Table 2.

[0047] Table 2 The physicochemical properties of the Y type molecular sieve used in the present invention

[0048]

[0049]

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Abstract

The invention discloses a preparation method of a high activity hydrocracking catalyst, which takes Y / Beta double micro-porous molecular sieve, Y type molecular sieve, Beta molecular sieve and the like, as acidic cracking material and adopts an impregnation method to prepare. Wherein various involved molecular sieves are mixed for modified processing, and the processing method is the processes of gas-phase making up silicon, hydrothermal treatment, ammonium and salt exchanging, ammonium and salt decomposing through roasting and the like. The preparation method has the advantages that hydrocracking catalyst prepared by the method has a higher reactivity and middle distillate oil selectivity, and the preparation method can be used in the heavy distillate oil hydrocracking process.

Description

technical field [0001] The invention relates to a hydrocracking catalyst and a preparation method thereof, in particular to a high-activity hydrocracking catalyst containing double microporous composite molecular sieves and a preparation method thereof. Background technique [0002] Hydrocracking technology is one of the main means of lightening heavy oil, and chemical raw materials, light fuel oil and middle distillates are the main target products of this technology. At present, with the acceleration of upgrading of petrochemical products, stricter environmental protection regulations, and increasing demand for chemical raw materials, the status of hydrocracking technology in the entire petroleum refining industry has been further improved. [0003] In many refining and processing processes, developing the most suitable catalyst is considered to be one of the most critical and ideal choices, and the same is true for hydrocracking. Catalyst activity is the main index to me...

Claims

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Application Information

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IPC IPC(8): C10G47/16B01J37/00
Inventor 孙万付方向晨张喜文凌凤香张志智尹泽群樊宏飞马静红李瑞丰
Owner CHINA PETROLEUM & CHEM CORP
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