Rectorite comprising adjuvant component and method for making same

A technology of rector soil and additives, applied in the field of clay and its preparation, can solve the problems of poor coke selectivity, etc., and achieve the effects of strong heavy oil cracking ability, short preparation time and strong anti-coking ability

Active Publication Date: 2010-12-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to overcome the deficiency that the existing rector earth is used for the poor selectivity of hydrocarbon oil processing coke, and to provide a rector earth containing additive components

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0023] In the preparation method of the rector's earth containing auxiliary component described in the present invention, preferably the consumption of rector's earth, binding agent, auxiliary component compound and water, make the solid content of the formed slurry be 20~45% by weight ; The pH value of the slurry obtained in step a is preferably adjusted to 3-6 with ammonia water, and the concentration of the ammonia solution is 3-10% by weight; the slurry obtained in step b is aged at 15-75° C. for 0.5-24 hours, preferably at 25 Aging at ~50°C for 1 to 12 hours; the drying molding is any existing drying and molding method, such as spray drying molding, the spray drying is well known to those skilled in the art, and the temperature of the tail gas of the spray drying is preferably 160 ~220°C; the molded rector clay containing auxiliary components is calcined at a temperature of 350~650°C for 0.5~3 hours.

[0024] In the method for preparing rectorite containing auxiliary comp...

Embodiment 1

[0033] This example illustrates a retort clay containing a phosphorus component and a method for its preparation.

[0034] Mix 651.0 grams of decationized water and 883.7 grams of aluminum sol, stir, add 922.7 grams of retort earth, stir for 15 minutes, then add 42.6 grams (NH 4 ) 2 HPO 4 , stirred to obtain a slurry with a solid content of 40% by weight, and then adjust the pH of the slurry to 4.0 with ammonia water, and then aged at 25° C. for 6 hours. The slurry obtained above was spray-dried and molded, and calcined at 600° C. for 1 hour to obtain retort clay C1 containing additive components. Composition of C1, distance between bottom and surface d 001 The values ​​and specific surface areas are listed in Table 1.

Embodiment 2

[0036] This example illustrates a magnesium-promoted retort clay and a method for its preparation.

[0037] Mix 930.2 grams of aluminum sol, 1541.7 grams of acidified pseudo-boehmite, and 692.0 grams of retort earth, make a slurry, and add 125.5 grams of MgCl 2 ·6H 2 O, stir evenly to obtain a slurry with a solid content of 30.4% by weight. The pH of the slurry was adjusted to 5.0 with ammonia water, and then aged at 25° C. for 12 hours. The above slurry was spray-dried and molded, and calcined at 450° C. for 3 hours to obtain retort clay C2 containing additive components. Composition of C2, distance between bottom and surface d 001 The values ​​and specific surface areas are listed in Table 1.

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PUM

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Abstract

The invention relates to rectorite containing promoter component, which contains 49.9 to 94.9 percent of the rectorite by weight, 5 to 50 percent of binder component calculated by oxide by weight and 0.1 to10 percent of one or a plurality of promoter component calculated by element which is selected from P, Mg, RE, Ti, B and Zr by weight. The rectorite containing the promoter component is prepared by the following steps: a. compounds of the rectorite, the binder and the promoter are mixed with water to prepare slurry; b. pH value of the prepared by the step a is adjusted to 2 to 7 with ammonia; c. the slurry obtained by the step b is aged for 0.5 to 24 hours under 15 to 75 DEG C; d. the aged slurry is dried, molded and baked for 0.5 to 3 hours under 350 to 650 DEG C. The rectorite containing the promoter component provided by the invention has the advantages of simple preparation method and good selectivity of coke, which can be used for cracking of the catalyst.

Description

technical field [0001] The present invention relates to a kind of clay and its preparation method, more specifically, the present invention relates to a kind of auxiliary agent-containing retort earth and its preparation method. Background technique [0002] Rectorite is a kind of aluminosilicate mineral, which is formed by alternating and orderly arrangement of non-expandable mica-like unit layers and expandable montmorillonite-like unit layers according to the common adjacent 2:1 clay layer. , the distance between its bottom surface>17.0 . Among them, there is isomorphic substitution phenomenon on the silicon-oxygen tetrahedron of the 2:1 clay layer, and there are exchangeable cations in the interlayer domain. When the exchangeable cations are replaced by a cross-linking agent, the expandable layer is stretched, and the obtained Cross-linked rectorite with macroporous structure, which has excellent thermal and hydrothermal stability (USP4,757,040). [0003] CN861019...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/10C01B33/44B01J29/00
Inventor 于善青朱玉霞田辉平许明德张万虹王振波陈振宇达志坚
Owner CHINA PETROLEUM & CHEM CORP
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