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Method for preparing catalytic cracking sulfur reduction additive

A catalytic cracking and sulfur reduction auxiliary technology, applied in catalytic cracking, cracking, petroleum industry and other directions, can solve problems such as heavy metal pollution, and achieve the effect of promoting cracking, reducing sulfur content, and promoting catalytic conversion

Inactive Publication Date: 2005-06-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method still has a certain amount of heavy metal-polluted waste agents to be treated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Preparation of sulfur-reducing additive containing 10 wt% ZnO

[0028] Get 0.9Kg (dry basis) of catalytic cracking balancer (called S1, see Table 1 for chemical composition, MA=64), add 20% by weight of ZnCl 2 (Chemically pure, Beijing Chemical Plant) 0.84Kg aqueous solution, beating for 0.5h, drying at 120°C for 16h, and then roasting at 700°C for 1h to obtain sulfur reducing additive GSA-Z1.

[0029] composition

Embodiment 2

[0031] The sulfur-reducing additive is prepared through an activation treatment process.

[0032] Get catalytic cracking balance agent (chemical composition is shown in Table 1) 1.0Kg, add 20% by weight (NH 4 ) 2 SO 4 (Chemically pure, Beijing Hongxing Chemical Factory) 0.75Kg aqueous solution, beating for 0.5h, drying at 120°C for 16h, and then roasting at 400°C for 2h, then adding 10L of water for beating, beating with NH 3 h 2 O to adjust the pH to 3.5, stir at room temperature for 1 hour, filter, wash, and dry to obtain the auxiliary agent GSA-S1, the properties of which are shown in Table 2. The microactivity index MA=70 was determined.

[0033] composition

Embodiment 3

[0035] A sulfur-reducing additive loaded with 10% by weight ZnO after activation treatment was prepared.

[0036] Take 0.06Kg of ZnO (chemically pure, Beijing Chemical Plant), disperse it in 0.45L of deionized water, add 20% by weight hydrochloric acid dropwise under stirring until the solution is clear, then add GSA-S1 treated by the steps described in Example 2 0.54Kg (dry basis), beating for 0.5h, drying at 120°C for 16h, and then roasting at 700°C for 1h to obtain additive GSA-SZ1.

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PUM

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Abstract

A method for preparing a catalytic cracking sulfur reduction additive, which is to use a catalytic cracking balancer with a vanadium content of 0.3%-1.2% and a micro-reaction activity greater than 45 directly as a catalytic cracking sulfur reduction additive, or through activation and / or loading The metal component zinc is used as a catalytic cracking sulfur reduction additive. The invention is easy to operate, practical and economical, not only creates favorable conditions for the recycling of waste agents, but also can significantly reduce the sulfur content of catalytic cracking gasoline.

Description

technical field [0001] The invention relates to a method for preparing a catalytic cracking sulfur-reducing additive, and more specifically, the invention relates to a method for using a catalytic cracking balancer as a sulfur-reducing additive. Background technique [0002] Catalytic cracking is an important secondary processing process of crude oil, and its main products include gasoline, diesel and liquefied petroleum gas. At present, catalytic cracking catalysts generally consist of molecular sieve materials (usually crystalline aluminum silicate materials) and a matrix. With the increasingly stringent environmental protection regulations, the quality requirements for fuel oil are getting higher and higher. my country's new gasoline national standard formulated in 1999 requires that the sulfur content of gasoline be controlled below 0.08%. According to statistics, my country's catalytic cracking (FCC) gasoline accounts for about 80% of the finished gasoline, and more t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G11/00
Inventor 李明罡刘中清宗保宁罗一斌何鸣元
Owner CHINA PETROLEUM & CHEM CORP
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