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Catalyst for hyrogenating deoxidating and olefine saturating of Feather synthesizing oil and its mfg. process and application

A technology of hydrodeoxygenation and Fischer-Tropsch synthesis, applied in the field of catalysts for hydrodeoxygenation and olefin saturation, can solve the problems of unsatisfactory hydrogenation activity and achieve high hydrogenation activity

Active Publication Date: 2005-03-23
SYNFUELS CHINA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above catalysts have good hydrogenation and dearomatization properties for petroleum products, but their hydrogenation activity for Fischer-Tropsch synthetic oils with high olefin content and a certain amount of oxygenates is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] First, the SiO 2 The carrier was pre-dried at 120°C. Then, according to the equal volume impregnation method, nickel nitrate (Ni(NO 3 ) 2 ·6H 2 O, 49.5g) and cobalt nitrate (Co(NO 3 ) 2 ·6H 2 O, 9.9g) was formulated into an aqueous solution and mixed evenly. Add the above solution to the SiO 2 In the carrier, immerse for 12 hours, dry at 110°C for 12 hours, and bake at 480°C for 4 hours to obtain Ni / Co / SiO 2 catalyst. Its weight percent composition is: NiO: CoO: SiO 2 =12.7:2.5:84.8.

[0030] Weigh 20g Ni / Co / SiO 2 The catalyst is placed in a continuous flow fixed bed reactor. First, it was reduced in a hydrogen atmosphere at 420°C for 8 hours, and then the temperature was lowered to 360°C. The reaction feed ratio is: hydrogen / oil (volume) ratio is 600, Fischer-Tropsch synthetic oil product (carbon number distribution is C 5 ~C 45 , olefins account for more than 40 wt%, and oxygen-containing compounds account for about 20 wt%) are pumped in by a ZB-80 micr...

Embodiment 2

[0032] Carry out the preparation of catalyst by the step of example 1, change carrier to be gac, need inert gas protection, cobalt nitrate (Co(NO 3 ) 2 ·6H 2 O, 9.9g) is lanthanum nitrate (La(NO 3 ) 3 ·6H 2 O, 16.0g), other conditions are constant, make Ni / La / activated carbon catalyst. Its weight percent composition is: NiO: La 2 o 3 : activated carbon = 12.7: 8.0: 79.3.

[0033] Weigh 20g of Ni / La / activated carbon catalyst and place it in a continuous flow fixed bed reactor. First, it is reduced in a hydrogen atmosphere at 400°C for 8 hours, and then the temperature is lowered to 380°C. The reaction feed ratio is: hydrogen / oil (volume) ratio is 800, Fischer-Tropsch synthetic oil product (carbon number distribution is C 5 ~C 45 , olefins account for more than 40 wt%, and oxygen-containing compounds account for about 20 wt%) are pumped in by a ZB-80 micropump. The total reaction pressure is 6.0MPa, WHSV=0.8h -1. Product analysis results: the conversion rate of olef...

Embodiment 3

[0035] First, the γ-Al 2 o 3 The pellets were pre-dried at 120°C. Then, according to the equal volume impregnation method, nickel nitrate (Ni(NO 3 ) 2 ·6H 2 O, 49.5g) and copper nitrate (Cu(NO 3 ) 2 ·3H 2 O, 15.2g) was formulated into an aqueous solution and mixed evenly. Add the above solution to Al 2 o 3 In the carrier, immerse for 12 hours, dry at 110°C for 12 hours, and bake at 400°C for 4 hours to obtain Ni / Cu / Al 2 o 3 catalyst. Its weight percent composition ratio is: NiO: CuO: Al 2 o 3 =12.7:5.0:82.3.

[0036] Weigh 20g Ni / Cu / Al 2 o 3 The catalyst is placed in a continuous flow fixed bed reactor. First, it was reduced in a hydrogen atmosphere at 350°C for 6 hours, and then the temperature was lowered to 300°C. The reaction feed ratio is: hydrogen / oil (volume) ratio is 1000, Fischer-Tropsch synthetic oil product (carbon number distribution is C 5 ~C 45 , olefins account for more than 40 wt%, and oxygen-containing compounds account for about 15 wt%) ar...

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Abstract

The invention is a hydro-deoxidation and alkene-saturation catalyst of Fischer-Tropsch oil product and its components in weight percent: nickel oxide 5.0-18.0%, cobalt oxide 0-11.0%, copper oxide 0-6.0%, iron oxide 0-12.0%, titanium oxide 0-12.0%, lanthanum oxide 0-8.0% and carrier 46.0-85.0%. Its preparing method includes in turn carrier preprocessing and after-processing of supported active component and catalyst. It has higher activity to hydro-deoxidation and alkene saturation of the oil product, especially applied to the hydrofining process of the iron-base paste Fischer-Tropsch oil product with higher content of oxygen-containing compound and alkene.

Description

technical field [0001] The invention relates to a catalyst for hydrogenation deoxygenation and olefin saturation, which is especially suitable for the catalyst for hydrodeoxygenation and olefin saturation of Fischer-Tropsch synthetic oil products and its preparation method and application. Background technique [0002] Fischer-Tropsch synthetic oil is sulfur-free, nitrogen-free and aromatic-free, and is an environmentally friendly fuel oil and chemical. However, the synthetic crude oil contains a large amount of olefins and a certain amount of oxygen-containing compounds, especially acidic oxygen-containing compounds, which seriously corrode the equipment and are not conducive to the further processing and utilization of the synthetic crude oil. Therefore, appropriate methods must be adopted for Fischer-Tropsch Synthetic oils undergo hydrodeoxygenation and olefin saturation. At present, industrial oil hydrogenation catalysts are mainly aimed at petroleum and edible oils, ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/36
Inventor 任杰孙予罕王雪峰王峰胡津仙李英
Owner SYNFUELS CHINA TECH CO LTD
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