Cracking catalyst containing nanometer rare-earth oxide and method of preparing the same

A cracking catalyst, nano-rare earth technology, applied in the direction of physical/chemical process catalysts, catalytic cracking, molecular sieve catalysts, etc., can solve the problem of poor hydrothermal activity stability, increased economic operation costs, and can not be well adapted to heavy oil feedstock Trend and other issues, to achieve the effect of excellent hydrothermal stability, improved product distribution, excellent heavy oil conversion ability

Inactive Publication Date: 2008-03-12
北京盛大京泰化学研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In short, the existing cracking catalysts for industrial application cannot well adapt to the trend of

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031]Get concentration is 5.4 kilograms of rare earth Y molecular sieve (Shandong Aluminum Works) slurry that is 30.0% by weight and add in the gel forming kettle, then add 2 kilograms of water, 66 grams of ZSM-5 molecular sieves (Nankai University product), 50 grams of nanometer lanthanum oxide ( Lanthanum oxide 99.99% by weight, Jiangsu Zhuoqun Nano Rare Earth Oxide Co., Ltd.), 2.5 kg of aluminum sol (21.8% by weight of alumina, Shandong Aluminum Factory), 2.0 kg of pseudoboehmite (57% by weight of aluminum oxide, Shandong Aluminum Plant) and 3.1 kilograms of kaolin (commodity of China Kaolin Company, ignition loss 16% by weight), after stirring, add 100 milliliters of hydrochloric acid, spray dry after stirring for 2 minutes, then wash and dry to obtain the catalyst.

[0032] The catalyst composition is: 27 wt% rare earth Y molecular sieve, 1.1 wt% ZSM-5, 19 wt% pseudoboehmite, 0.8 wt% nano-lanthanum oxide, 9.1 wt% aluminum sol and 43 wt% kaolin.

Embodiment 2

[0034] Get concentration and add 5.0 kilograms of rare earth Y molecular sieves (Shandong Aluminum Plant) with a concentration of 30.0% by weight into the gelling kettle, then add 2 kilograms of water, 60 grams of ZSM-5 molecular sieves (Nankai University product), 100 grams of nano-lanthanum oxide (oxidized Lanthanum 99.99% by weight, Jiangsu Zhuoqun Nano Rare Earth Oxide Co., Ltd.), 2.5 kg of aluminum sol (21.8% by weight of alumina, Shandong Aluminum Plant), 2.0 kg of pseudoboehmite (57% by weight of alumina content, Shandong Aluminum Plant ) and 3.0 kilograms of kaolin (commodity of China Kaolin Company, loss of 16% by weight), after stirring, add 100 milliliters of hydrochloric acid, spray dry after stirring for 2 minutes, and then obtain catalyst through washing and drying.

[0035] The catalyst composition is: 25.6 wt% rare earth Y molecular sieve, 1 wt% ZSM-5, 19.4 wt% pseudo-boehmite, 1.7 wt% nano-lanthanum oxide, 9.3 wt% aluminum sol and 43.0 wt% kaolin.

Embodiment 3

[0037] 5.4 kilograms of rare earth Y molecular sieve (Shandong Aluminum Works) slurry with a concentration of 30.0% by weight was added to the gelling kettle, and then 2 kilograms of water, 60 grams of ZSM-5 molecular sieve (product of Nankai University), and 150 grams of nano-lanthanum oxide ( Lanthanum oxide 99.99% by weight, Jiangsu Zhuoqun Nano Rare Earth Oxide Co., Ltd.), 2.5 kg of aluminum sol (21.8% by weight of alumina, Shandong Aluminum Factory), 2.0 kg of pseudoboehmite (57% by weight of aluminum oxide, Shandong Aluminum Plant) and 3.1 kilograms of kaolin (commodity of China Kaolin Company, ignition loss 16% by weight), after stirring, add 100 milliliters of hydrochloric acid, spray dry after stirring for 2 minutes, then wash and dry to obtain the catalyst.

[0038] The catalyst composition is: 26.5% by weight of rare earth Y molecular sieve, 1% by weight of ZSM-5, 18.6% by weight of pseudoboehmite, 2.5% by weight of nano-lanthanum oxide, 8.9% by weight of aluminum so...

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Abstract

The present invention relates to a cracking catalyst comprising a nano rare earth oxide and a preparation method of the catalyst. The present invention is characterized in that a compound consisting of a rare earth Y molecular sieve (15-50 weight percent), a silica and/or aluminum bonding agent (10-30 weight percent, the nano rare earth oxide (0.5-20 weight percent), a natural inorganic packing substance (10-60 weight percent), and other active components (0-10 weight percent) is molded into the microsphere cracking catalyst after the spray drying. The rare earth content is 0-30 weight percent calculated based on the rare earth oxide, and the select content of the rare earth is 1-10 weight percent. The cracking catalyst is characterized in that the catalyst is provided with the excellent heavy oil conversion capability and promotes the hydrothermal stability, so the catalyst is more suitable for the long-period use on a cracking catalysis device under the highly rigor renewal condition; the catalyst improves the product distribution and reduces the alkene content and the sulfur content of the catalytically cracked gasoline.

Description

technical field [0001] The present invention relates to a cracking catalyst containing nano-rare earth oxides and its preparation method, and more particularly to a cracking catalyst containing nano-rare earth oxides with strong heavy oil cracking ability and good hydrothermal stability and its preparation method . Background technique [0002] Catalytic cracking is the most important production technology in refineries today. Catalytic cracking units are used to convert heavy and residual oils into gasoline, diesel and light gas components. As the raw oil becomes heavier, the content of olefins and sulfur in the cracked products also increases. However, after entering the atmosphere, olefins and sulfur will undergo photochemical reactions to generate ozone and acid rain, which will seriously pollute the environment, and the presence of olefins will cause serious pollution. Affect the stability of gasoline and the use of the engine. [0003] Since the beginning of the 21s...

Claims

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Application Information

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IPC IPC(8): B01J29/80B01J23/10C10G11/05
Inventor 王华峰李朝利姜继东张周珺李桂英
Owner 北京盛大京泰化学研究所
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