Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of polymetallic continuous reforming catalyst and preparation method thereof

A reforming catalyst and multi-metal technology, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems that cannot be used in continuous reforming processes

Active Publication Date: 2017-04-12
PETROCHINA CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the carrier of the catalyst is extruded, the catalyst is strip-shaped and cannot be used in the continuous reforming process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of polymetallic continuous reforming catalyst and preparation method thereof
  • A kind of polymetallic continuous reforming catalyst and preparation method thereof
  • A kind of polymetallic continuous reforming catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1 prepares the spherical carrier of the present invention

[0045] Take 100 grams of pseudo-boehmite (produced by the aluminum alcohol hydrolysis process of Sasol Company) and an appropriate amount of deionized water, and stir at room temperature for 0.5 hours to slurry. Then add 6 ml (1:1 volume) of nitric acid, a predetermined amount of stannous chloride in hydrochloric acid solution, and a predetermined amount of cerium chloride solution, and acidify for 2 hours. Then drop the ball into the oil ammonia column, wherein the oil column is aviation kerosene, and the wet ball is solidified in the ammonia water column for 2 hours, then filtered, washed with deionized water three times, dried at 60°C for 6 hours, and dried at 120°C for 2 hours. Calcined at 650°C for 4 hours in a flowing air atmosphere. By changing the pinhole size of the drop ball of the oil ammonia column forming device, the diameter of the small ball carrier is changed. The properties of prep...

Embodiment 2

[0059] Take 100 grams of No. 1 carrier and impregnate with a predetermined amount of cerium nitrate solution. The Ce content in the impregnating solution is 0.22% relative to the mass of alumina on a dry basis, and the liquid / solid ratio of the impregnating solution to the carrier is 1. The impregnating solution was dried at 120°C for 4 hours, and then calcined at 650°C for 4 hours to obtain a carrier containing Sn and Ce.

[0060] Impregnate the Sn and Ce-containing carrier prepared in the previous step with a predetermined amount of ammonium metatungstate solution, the W content in the impregnating solution is 0.23% relative to the mass of alumina on a dry basis, the liquid / solid ratio of the impregnating solution and the carrier is 0.8, and impregnate for 0.5 hours Finally, the impregnating solution was evaporated to dryness at 60°C, dried at 120°C for 4 hours, and then calcined at 650°C for 4 hours to obtain a carrier containing Sn, Ce and W.

[0061] Impregnate with a hyd...

Embodiment 3

[0063] Catalyst B was prepared according to the method of Example 2, except that the content of Ce in the impregnation solution was 0.41% relative to the mass of alumina on a dry basis, and the composition of catalyst B obtained after hydrogen reduction was shown in Table 2.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
pore sizeaaaaaaaaaa
water contentaaaaaaaaaa
Login to View More

Abstract

The invention relates to a multi-metal continuous reforming catalyst and a preparation method thereof. The catalyst comprises 0.01-2 mass% of group IVA metal component calculated by elements, 0.01-1 mass% of group VIII metal component calculated by elements, 0.01-1 mass% of group VIB component calculated by elements, 0.01-3 mass% of rare earth component calculated by elements, 0.2-3 mass% of halogen calculated by elements and the balance of an alumina carrier. The alumina carrier is a sphere with spherical degree greater than 0.9, group VIII metal is platinum, group VIB metal is tungsten or molybdenum, group IVA metal is Ge or Sn, and the rare earth is Ce. The catalyst hash crushing strength greater than 30 Newton per grain, can be applied to continuous reforming process and has the advanategs of good selectivity on product, low carbon deposit rate and strong sulfur shock resistance.

Description

technical field [0001] The invention relates to a multi-metal continuous reforming catalyst and a preparation method thereof. Background technique [0002] Catalytic reforming is one of the important production processes in petroleum processing, and its main purpose is to produce high-octane gasoline, BTX aromatics and cheap hydrogen. With the upgrading of gasoline and diesel quality and the rapid development of hydrogenation technology, catalytic reforming plays an increasingly important role in the refining and chemical industry. [0003] At present, the development trend of the reforming process is to develop in a thermodynamically favorable direction, that is, to reduce the reaction pressure, increase the reaction temperature, and reduce the hydrogen-to-oil ratio. However, the increase of the operating severity makes the carbon deposition rate of the catalyst increase rapidly. In order to maintain the activity of the catalyst, it is necessary to shorten the regeneratio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/652C10G35/09
Inventor 潘晖华兰玲张鹏马安阎立军桂鹏张上
Owner PETROCHINA CO LTD