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Desulfuration adsorbent for catalytic gasoline as well as preparation method and application of adsorbent

A technology for catalytically cracking gasoline and adsorbents, which is applied in the petrochemical field and can solve the problem of high sulfur content

Active Publication Date: 2014-02-05
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main problem of gasoline is the high sulfur content. Finding an economical and simple way to reduce the sulfur content in gasoline is of great significance for improving the quality of gasoline and further improving the environmental conditions.

Method used

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  • Desulfuration adsorbent for catalytic gasoline as well as preparation method and application of adsorbent
  • Desulfuration adsorbent for catalytic gasoline as well as preparation method and application of adsorbent
  • Desulfuration adsorbent for catalytic gasoline as well as preparation method and application of adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Mix 4.45 kg of zinc oxide powder (Zhengzhou Yongchang Chemical Co., Ltd., purity 99.6wt%), 0.90 kg of Ferrierite (Shanghai Zhuoyue Chemical Co., Ltd., containing 0.63 kg on a dry basis) and 4.57 kg of deionized water, and stir for 30 minutes A mixed slurry of zinc oxide and ZSM-35 was obtained.

[0075] Take 1.40 kg of alumina (produced by Shandong Aluminum Plant, containing 1.02 kg on dry basis) and 2.65 kg of kaolin (Xuzhou Jiahe Kaolin Factory, containing 1.99 kg on dry basis) and mix them under stirring, then add 0.105 kg of potassium nitrate (analytical pure, Beijing Chemical Reagent Company) and 4.6 kg of deionized water, after mixing evenly, add 360 ml of 30wt% hydrochloric acid (chemically pure, produced by Beijing Chemical Factory) and stir for 1 hour to acidify, then heat up to 80 ° C for 2 hours . Then add the mixed slurry of zinc oxide and ZSM-35, mix and knead for 1 hour to obtain the carrier mixture slurry.

[0076] The carrier mixture dough is extruded ...

Embodiment 2

[0080] Take 1.59 kg of pseudo-boehmite (produced by Shandong Aluminum Plant, containing 1.16 kg on a dry basis) and 2.23 kg of attapulgite (Anwei Mingmei Mineral Chemical Co., Ltd., containing 1.51 kg on a dry basis) and mix them under stirring, and then add 0.052 kg of potassium nitrate (analytical grade, Beijing Chemical Reagent Company) and 8.0 kg of deionized water are uniformly transparent solution, after mixing evenly, add 260 ml of 30wt% hydrochloric acid (chemically pure, produced by Beijing Chemical Factory) and stir for 1 hour Afterwards, the temperature was raised to 80°C for aging for 2 hours. After the temperature is lowered, add 5.54 kg of zinc oxide powder (Zhengzhou Yongchang Chemical Co., Ltd., purity 99.6%) and 0.41 kg of ZSM-35 (Shanghai Zhuoyue Chemical Co., Ltd., containing 0.29 kg on a dry basis) and knead for 1 hour to obtain a carrier slurry .

[0081] Referring to the method of Example 1, the extrusion molding of the carrier was carried out and the ac...

Embodiment 3

[0083] The adsorbent was prepared as follows: 4.92 kg of zinc oxide powder (Zhengzhou Yongchang Chemical Co., Ltd., purity 99.6%), 0.72 kg of ZSM-35 (Shanghai Zhuoyue Chemical Co., Ltd., 0.51 kg on a dry basis) and 5.58 kg of deionized water After mixing and stirring for 30 minutes, a mixed slurry of zinc oxide and ZSM-35 was obtained.

[0084] Take 1.86 kg of pseudo-boehmite (produced by Shandong Aluminum Factory, containing 1.36 kg on dry basis) and 2.13 kg of kaolin (Xuzhou Jiahe Kaolin Factory, containing 1.59 kg on dry basis) and mix them under stirring, then add 0.052 kg of potassium nitrate ( Analytical grade, Beijing Chemical Reagent Company) and 4.8 kilograms of deionized water are made into a homogeneous transparent solution, after mixing evenly, add 300 milliliters of 30wt% hydrochloric acid (chemically pure, produced by Beijing Chemical Factory) to make the slurry pH value 2.5, stir and acidify After 1 hour, the temperature was raised to 80° C. for 2 hours of aging...

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Abstract

The invention relates to a desulfuration adsorbent for catalytic gasoline as well as a preparation method and an application of the adsorbent. The desulfuration adsorbent based on the total weight of the adsorbent which is 100% comprises the following components in percent by weight: 2-15wt% of a dealuminized ferrierite molecular sieve, 8-20wt% of an aluminum oxide binder, 10-30wt% of silicon source clay, 40-65wt% of zinc oxide, 10-25wt% of at least one metal accelerants selected from cobalt, nickel, copper and manganese and 0.1-2wt% of a metal assistant selected from metals in IA group and IIA group, wherein preferably, the at least one metal selected from cobalt, nickel, copper and manganese is Ni and / or Co. The adsorbent provided by the invention has high desulfuration activity, and meanwhile further has the advantage of remarkably increasing the octane number of gasoline. The adsorbent can be applicable to a desulfurization process of catalytic gasoline or hydrogenated gasoline.

Description

technical field [0001] The invention relates to the petrochemical field, in particular to a catalytic cracking gasoline desulfurization adsorbent and its preparation method and application. Background technique [0002] The sulfur oxides produced by the combustion of sulfur compounds in gasoline directly lead to acid rain, which is the main source of urban environmental pollution. With the increasing requirements for environmental quality, the standard for gasoline indicators is also gradually raised. At present, the main problem of gasoline is the high sulfur content. Finding an economical and simple way to reduce the sulfur content in gasoline is of great significance for improving the quality of gasoline and further improving the environmental conditions. [0003] CN 1355727A provides an adsorbent composition for removing sulfur from catalytic cracking gasoline and diesel oil and a method for removing sulfur. The sorbent composition contains zinc oxide, silicon oxide, a...

Claims

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Application Information

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IPC IPC(8): B01J20/18B01J20/30C10G25/00C10G49/00C10G45/02
Inventor 周广林周红军李芹毕凤云
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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