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Catalyst for hydrorefining fraction oil and its prepn.

A technology for hydrorefining and catalysts, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problems of limited distillate capacity and low activity, and achieve Effects of high hydrorefining activity, high hydrodesulfurization, and high stability

Inactive Publication Date: 2007-08-15
胜帮科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low content of metal active components of the catalyst, its activity is poor, and the ability to treat distillate oil with high dry point is limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0019] Preparation of carrier Z-1

[0020] Use 1000g of aluminum hydroxide powder, add 20ml of nitric acid, 700ml of deionized water, and an appropriate amount of extrusion aid, scallop powder, mix and roll, extrude into a clover shape, dry at 110°C for 3 hours, and roast at 550°C for 3 hours. Carrier Z-1.

[0021] Preparation of Vector Z-2

[0022] Modified aluminum hydroxide 1000g with silicon, added 20ml of nitric acid, 6ml of boric acid, 700ml of deionized water and an appropriate amount of extrusion aid Selina powder, mixed and rolled, extruded into a clover shape, dried at 120°C for 3 hours, 600°C Carrier Z-2 was prepared by calcining for 3 hours.

Embodiment 1

[0030] Mix 18 grams of molybdenum oxide, 9 grams of nickel carbonate, 10 grams of phosphoric acid and 60 ml of deionized water, heat up to 100°C and dissolve for 1.0-2.0 hours, then add 5 grams of nickel nitrate after the reaction is complete, boil for 5-10 minutes and then cool down Add 46 grams of ammonium metatungstate to obtain 100 ml of W-Mo-Ni co-impregnation solution, impregnate 100 grams of roasted carrier Z-2 with the above impregnation solution at room temperature, dry at 100°C for 3 hours, and bake at 500°C for 3 hours , Catalyst D was prepared.

Embodiment 2

[0032] Mix 95 grams of ammonium metatungstate, 24 grams of nickel carbonate, 31 grams of molybdenum oxide, 17 grams of phosphoric acid and 120 ml of deionized water, and then heat up to 90 ° C for 2 hours to obtain W-Mo-Ni-P co-immersion solution 200 Milliliter, 200 g of calcined carrier Z-2 was impregnated with the above impregnating solution at room temperature, dried at 120°C for 3 hours, and calcined at 480°C for 2 hours to obtain catalyst E.

[0033] Using sulfur-containing catalytic diesel as raw material, the hydrogen pressure is 6.4MPa, the hydrogen-oil ratio is 400:1, and the space velocity is 2.0h -1 , under the condition that the reaction temperature is 350°C, the activity evaluation of the distillate oil hydrotreating catalyst of the present invention is carried out, and the properties and evaluation results of the feed oil are shown in Table 1 and Table 2 respectively.

[0034] Table 1 Properties of sulfur-containing catalytic diesel oil

[0035] Density...

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PUM

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Abstract

The invention discloses a distillation hydrogenation refining catalyst whose main component is W / Mo / Ni / SiO2 / Al2O3, added with B agent. The invention also provides relative preparation that using alumina carrier which contains silicon and boron to obtain final product via two-stage immerge method, while the immerging solution contains three active components as tungsten, molybdenum and nickel. The invention has simple preparation, low cost, and adjustable physical-chemical property via agents, to obtain needed porous structure and surface acid property, to improve hydrogenation activity. The inventive catalyst is used in variable distillation hydrogenations, as diesel hydrogenation with high drying point.

Description

technical field [0001] The invention relates to a distillate oil hydrotreating catalyst, in particular to a catalyst for a high dry point diesel hydrotreating process; in addition, the invention also relates to a preparation method of the catalyst. Background technique [0002] The rapid development of the national economy has driven the increasing demand for petroleum products in the market, which has higher requirements for hydrorefining technology. First, the composition of the raw materials is complex, which is mainly manifested in the variable properties of the processed raw material oil. The processed raw materials can be straight-run diesel oil with sulfur content, secondary processed diesel oil with high nitrogen content, or straight-run diesel oil with secondary processing Diesel blended oil; the second is to adopt a high dry point cutting scheme, mainly because the high dry point distillate contains some sulfur compounds with more complex structures, which must be ...

Claims

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Application Information

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IPC IPC(8): B01J23/888C10G45/08
Inventor 沈和平张琪
Owner 胜帮科技股份有限公司
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