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Method for preparing hydrocarbon fuel from grease raw materials

A technology for oil and hydrocarbon fuels, which is applied in the field of preparing hydrocarbon fuels from oil and fat raw materials, can solve problems such as poor low temperature fluidity, and achieve the effects of low freezing point, simplified process flow, and good isomeric selectivity.

Active Publication Date: 2019-02-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The product obtained in this method is normal alkanes with relatively high freezing point and poor fluidity at low temperature

Method used

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  • Method for preparing hydrocarbon fuel from grease raw materials
  • Method for preparing hydrocarbon fuel from grease raw materials

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0047] Preparation Example 1 Preparation of Hydrotreating Catalyst

[0048] Weigh 500 grams of pseudo-boehmite (produced from Changling Catalyst Factory), extrude it into a clover-shaped strip with a circumcircle diameter of 1.6 mm, and dry it at 120° C. for 6 hours. Take 300 grams of it, and process it for 6 hours at a temperature of 600° C. at a volume ratio of air to water vapor of 1:0.6, a gas flow rate of 1.0 standard cubic meters / kg.hour, and a temperature of 600° C. to obtain the carrier S .

[0049] Weigh 100 grams of carrier S, impregnate with 86 ml of aqueous solution containing 5.8 grams of ammonium paramolybdate, 29.7 grams of nickel nitrate and 53.4 grams of ammonium metatungstate for 2 hours, dry at 120°C for 3 hours, and roast at 450°C for 4 hours to obtain hydrogenation Treat Catalyst C. MoO in the catalyst 3 , NiO and WO 3 The weight contents are respectively 2.8%, 4.4% and 25.7%.

Embodiment 1

[0056] In this embodiment, palm oil is used as the oil raw material, and the main properties of palm oil are shown in Table 2. figure 1 The process flow shown. 100mL of hydrotreating catalyst C is installed in the hydrotreating reactor. After hydrotreating catalyst C is vulcanized, it will -1 Under the condition of hydrogen-to-oil volume ratio of 1200, palm oil and dimethyl disulfide containing 0.3% by weight were subjected to hydrogenation reaction.

[0057] The hydrotreated reaction effluent enters the hot high-pressure separator, the temperature of the hot high-pressure separator is 200° C., and the separated liquid hydrocarbon contains 100 mg / kg of water and 200 mg / kg of sulfur.

[0058] 100mL of prepared hydroisomerization catalyst F is installed in the hydroisomerization reactor. After the hydroisomerization catalyst is vulcanized, the -1 Under the condition of hydrogen-to-oil volume ratio of 800, the liquid hydrocarbon undergoes hydroisomerization reaction, and the re...

Embodiment 2

[0060] In this embodiment, waste catering oil is used as the raw material of oil and fat, and the main properties of waste catering oil are shown in Table 2. figure 1 The process flow shown. 100mL hydrotreating catalyst C is installed in the hydrotreating reactor. After hydrotreating catalyst C is vulcanized, it will -1 Under the condition that the volume ratio of hydrogen to oil is 1000, the waste catering oil and the dimethyl disulfide containing 0.2% by weight are subjected to hydrogenation treatment reaction.

[0061] The hydrotreated reaction effluent enters the hot high-pressure separator, the temperature of the hot high-pressure separator is 200° C., and the separated liquid hydrocarbon contains 100 mg / kg of water and 150 mg / kg of sulfur.

[0062] 100mL of the prepared hydroisomerization catalyst F is installed in the hydroisomerization reactor. After the hydroisomerization catalyst is vulcanized, it will -1 Under the condition of hydrogen-to-oil volume ratio of 800, ...

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Abstract

The invention relates to a method for preparing hydrocarbon fuel from grease raw materials. The method comprises the steps: performing a reaction through contact of the grease raw materials with a hydrogenation catalyst, performing separation on hydrogenation reaction effluents so as to obtain liquid hydrocarbon, water and gas matter, performing a reaction through contact of the liquid hydrocarbonwith a hydroisomerization catalyst, and performing separation and fractionation on hydroisomerization reaction effluents so as to obtain a diesel fraction and a naphtha fraction. The prepared dieselfraction contains no sulfur, has a low freezing point and a high cetane number, and is a high-quality diesel product and a diesel cetane number additive.

Description

technical field [0001] The invention belongs to a production method of biofuel, more specifically, a hydrogenation method for preparing hydrocarbon fuel from oily raw materials. Background technique [0002] As the supply of traditional fossil energy is tightening, the pressure to reduce carbon dioxide emissions is increasing. How to effectively reduce carbon dioxide gas emissions while increasing fuel supply is an important issue that the oil refining industry is facing. The development of biomass fuel is considered to be one of the effective means to solve this problem. [0003] Biofuels have gradually attracted people's attention mainly for the following reasons: 1. Biofuels are renewable energy; 2. The carbon content of biofuels is close to that of existing fuels; 3. The carbon dioxide absorbed by the precursors of biofuels can reduce Net emissions of greenhouse gases; 4. The distribution of bio-energy is more even than that of fossil energy. [0004] Vegetable oils ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00C10G67/02
CPCC10G3/46C10G3/50C10G67/02C10G2300/10C10G2300/1007C10G2300/1014C10G2300/1018C10G2300/70C10G2400/04Y02P30/20
Inventor 渠红亮董松涛赵毅吴昊
Owner CHINA PETROLEUM & CHEM CORP
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