Saturation and hydrogenation method of C9 fraction through cracking by petroleum hydrocarbons

A technology for cracking carbon and petroleum hydrocarbons, which is applied in the field of hydrogenation of alkynes, dienes, and monoolefins into corresponding alkanes in the cracking of carbon nine fractions of petroleum hydrocarbons, which can solve the problem that dienes do not have hydrogenation selectivity, etc., and achieve The effect of mild operating conditions, good water resistance, and increased added value

Active Publication Date: 2014-11-26
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catalyst can be used for hydrofining of middle and low distillate oils. It can hydrogenate saturated monoolefins to the greatest extent while hydrodesulfurizing. It can meet the requirements of oil products with variable sulfur content and high space velocity, but it has no effect on diolefins. Hydrogenation selectivity

Method used

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  • Saturation and hydrogenation method of C9 fraction through cracking by petroleum hydrocarbons
  • Saturation and hydrogenation method of C9 fraction through cracking by petroleum hydrocarbons
  • Saturation and hydrogenation method of C9 fraction through cracking by petroleum hydrocarbons

Examples

Experimental program
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Effect test

Embodiment 1

[0041] Dissolve 200g of sodium carbonate and 38g of ammonium bicarbonate in 1000ml of water to make a precipitant; 212g of nickel nitrate, 30g of aluminum nitrate, 28g of sodium metaaluminate, 5g of magnesium nitrate, 6.6g of zirconium nitrate, 1.7g of copper nitrate, and 16.8g of molybdenum Dissolve ammonium nitrate, 3g of lanthanum nitrate, and 15g of sodium stannate in 800ml of water, heat to 55°C, add a precipitant, and then add 30g of diatomaceous earth after all the precipitant is added. Continue heating to 90°C, adjust the pH value to 8.6 with potassium carbonate, and stir for 1 h. After filtration, the filter cake was washed 5 times with distilled water. The filter cake was dried and extruded into a cylindrical shape of Φ3×8mm to obtain the catalyst precursor 1. In a 100ml fixed-bed reactor, under a hydrogen atmosphere, reduce the catalyst precursor 1 at a reduction temperature of 380°C for 24 hours, cool down to 80°C, pass nitrogen to cool to 30°C, stop nitrogen flow...

Embodiment 2

[0054] Dissolve 200g of sodium carbonate and 38g of ammonium bicarbonate in 1000ml of water to make a precipitant; 221g of nickel nitrate, 30g of aluminum nitrate, 28g of sodium metaaluminate, 15g of magnesium nitrate, 3.4g of copper nitrate, 7.5g of ammonium molybdate, and 6g of nitric acid Dissolve lanthanum and 9.9g sodium stannate in 800ml water, heat to 55°C, add a precipitating agent, and then add 30g diatomaceous earth after all the precipitating agent is added. Continue heating to 90°C, adjust the pH value to 8.8 with potassium carbonate, and stir for 1 h. After filtration, the filter cake was washed 5 times with distilled water. The filter cake was dried and extruded into a cylindrical shape of Φ3×8mm to obtain the catalyst precursor 2. In a 100ml fixed-bed reactor, under a hydrogen atmosphere, reduce the catalyst precursor 2 at a reduction temperature of 350°C for 28 hours, cool down to 90°C, cool down to 35°C with nitrogen, stop nitrogen, and increase air Measure ...

Embodiment 3

[0067] Dissolve 200g sodium carbonate and 38g ammonium bicarbonate in 1000ml water to make a precipitant; 230g nickel nitrate, 30g aluminum nitrate, 28g sodium metaaluminate, 15g magnesium nitrate, 9g zinc nitrate, 5g zirconium nitrate, 7.5g ammonium molybdate 1. Dissolve 9.9g of sodium stannate in 800ml of water, heat to 55°C, add a precipitating agent, and then add 30g of diatomaceous earth after all the precipitating agent is added. Continue heating to 90°C, adjust the pH value to 9 with potassium carbonate, and stir for 1 h. After filtration, the filter cake was washed 5 times with distilled water. The filter cake was dried and extruded into a cylindrical shape of Φ3×8 mm to obtain the catalyst precursor 3 . In a 100ml fixed-bed reactor, under a hydrogen atmosphere, the catalyst precursor 3 was reduced at a reduction temperature of 440° C. for 15 hours, and the temperature was lowered to 100° C. Cool the temperature down to 35°C by blowing nitrogen, stop blowing nitrogen...

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Abstract

The invention relates to a saturation and hydrogenation method of C9 fraction through cracking by petroleum hydrocarbons, a catalyst is a nickel-based hydrogenation catalyst, a hydrogenation technology is characterized in that the inlet temperature of a reactor is 30-50 DEG C, the reaction pressure is 2.7-4.0MPa, the liquid volume space velocity is 2.0-4.5h<-1>, the volume ratio of hydrogen to oil is 100 to 400, and the catalyst comprises a main active ingredient Ni, an assisted active ingredient Mg, Mo, Sn, X1 and X2. The preparation method is employed to obtain the nickel-based saturation hydrogenation catalyst, the hydrogenation condition of the present invention is used for acquiring especially excellent hydrogenation effect, the hydrogenation catalyst has high hydrogenation activity, the hydrogenation reaction is carried out under low temperature, and the hydrogenation catalyst has the characteristics of good heat stability, sulfur resistance and colloid resistance, and is suitable for saturation and hydrogenation of the C9 fraction through cracking by petroleum hydrocarbons.

Description

technical field [0001] The invention relates to a method for saturated hydrogenation of petroleum hydrocarbon cracking C9 fractions, the method is suitable for hydrogenating unsaturated hydrocarbon raw materials into corresponding saturated hydrocarbons, especially suitable for cracking alkynes in petroleum hydrocarbon cracking C9 fractions , Diolefins, and monoolefins are hydrogenated to the corresponding alkanes. Background technique [0002] C 9 Distillate, which is extracted and separated from C 5 Fraction, C 6 ~C 8 The remaining fraction after the fractionation accounts for about 10% to 15% of the total ethylene production. cleavage C 9 It is a good raw material for producing aromatic solvent oil. But in cracking C 9 It contains a large amount of olefins and a certain amount of impurities such as sulfur and nitrogen, and has a strong odor and poor stability. At present, most ethylene production plants are directly used or sold as low-grade fuels, and the utilizat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G49/04B01J23/887B01J23/94B01J38/10
Inventor 钱颖王廷海薛慧峰张慧梁顺琴向永生王宗宝郑云弟马好文常晓昕顾青孙利民王学丽王书峰潘曦竹
Owner PETROCHINA CO LTD
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