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

Method for activating hydrogenation catalyst

A technology of hydrogenation catalyst and activation method, which is applied in the direction of catalyst activation/preparation, chemical instrument and method, physical/chemical process catalyst, etc. The effect of low cost and simple preparation process

Active Publication Date: 2011-05-18
CHINA PETROLEUM & CHEM CORP +1
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there have been no reports on sulfur-containing porous proppants

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
  • Method for activating hydrogenation catalyst
  • Method for activating hydrogenation catalyst
  • Method for activating hydrogenation catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The preparation process of porous proppant composition CA1 is as follows:

[0047] The molten elemental sulfur is introduced into the alumina porous proppant SA1 by impregnation, and the amount of elemental sulfur introduced is 180% of the weight of the porous proppant. Then tetrabutylthiuram disulfide (TBTD) is mixed with heavy diesel oil, and this mixture is introduced in the porous proppant containing elemental sulfur by impregnation method, and the TBTD consumption is 3% of porous proppant weight, and the heavy diesel oil consumption is porous 20% of proppant weight. Finally, the porous proppant composition CA1 was obtained by treating at 160° C. for 5 hours in a normal-pressure, non-flowing air atmosphere.

Embodiment 2

[0049] The preparation process of porous proppant composition CA2 is as follows:

[0050] Disperse tetramethylthiuram disulfide (TMTD) in an organic solvent (a mixture of peanut oil and heavy diesel oil at a weight ratio of 4:1), disperse elemental sulfur in the above mixture, and introduce the mixture into the porous proppant SA2 by impregnation Among them, the introduction amount of elemental sulfur is 60% of the weight of the porous proppant, the amount of TMTD is 2% of the weight of the porous proppant, and the amount of organic solvent is 15% of the weight of the porous proppant. Finally, the porous proppant composition CA2 was obtained by treating at 160° C. for 5 hours in a normal-pressure, non-flowing air atmosphere.

Embodiment 3

[0052] The preparation process of porous proppant composition CA3 is as follows:

[0053] The molten elemental sulfur is introduced into the alumina porous proppant SA3 by impregnation, and the amount of elemental sulfur introduced is 270% of the weight of the porous proppant. Then tetramethylthiuram disulfide (TMTD) is dissolved in benzene, and the mixture is introduced into the catalyst containing elemental sulfur by impregnation method, and the amount of TMTD is 5% of the weight of the porous proppant. Finally, the porous proppant composition CA3 was obtained by treating at 120° C. for 5 hours under normal pressure, in an atmosphere with a volume ratio of water vapor and air of 5:1.

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

No PUM Login to View More

Abstract

The invention discloses a method for activating a hydrogenation catalyst, which comprises the steps of filling a porous proppant composition and a hydrogenation catalyst into a reactor respectively and activating the hydrogenation catalyst. The porous proppant composition comprises the following components: (1) a porous proppant, (2) sulfur, (3) an organic solvent and (4) an assistant, wherein the sulfur in form of sulfur element is 20 to 300 percent by weight of the porous proppant; the organic solvent is 0 to 50 percent by weight of the porous proppant; and the assistant is 0 to 25 percent by weight of the porous proppant. In the method, the adoption of the porous proppant composition for providing the hydrogenation catalyst with a vulcanizing agent can reduce the working time of devices, improve product efficiency, overcome a drawback of in-situ presulfurization, dissipate heat generated in a reactivation process and avoid local overheating of a presulfurization hydrogenation catalyst bed layer, so the influences on the catalyst performance are reduced.

Description

technical field [0001] The invention relates to a hydrogenation catalyst activation method, in particular to a hydrogenation catalyst presulfidation method. Background technique [0002] Hydrogenation catalysts used in industry are generally supported by refractory oxides such as alumina, silica-alumina, and molecular sieves, and one of Group VIB metals (such as molybdenum, tungsten) and Group VIII metals (such as cobalt, nickel) One or several are active metal components, and these active metal components are dispersed on the carrier in an oxidized state, and during the hydrogenation reaction, the active metal components of the catalyst are in a sulfide state (the metal exists in the form of sulfide: co 9 S 8 、MoS 2 、Ni 3 S 2 、WS 2 etc.) have higher activity and stability. Therefore, presulfidation is required to convert the active metal from an oxidized state to a sulfided state before the catalyst is used. These hydrogenation catalysts mainly include hydrorefining...

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): B01J37/20C10G45/04C10G47/02
Inventor 李永泰孟祥兰高鹏
Owner CHINA PETROLEUM & CHEM CORP