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Method for preparing high-performance fuel oil by adopting mesoporous alkaline carbon materials to carry out catalytic cracking on grease

A catalytic cracking, mesoporous carbon technology, applied in chemical instruments and methods, preparation of liquid hydrocarbon mixtures, catalysts for physical/chemical processes, etc. , The effect of the load method is simple and easy to implement

Active Publication Date: 2014-07-16
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Technical issues solved: In order to solve the problem that the pore structure of existing catalysts such as mesoporous silicon materials is destabilized under alkaline conditions, the invention provides a method for preparing mesoporous basic carbon materials. The yield of cracking oil with this catalyst is high, and the obtained cracking The molecular weight of oil products is concentrated in the diesel fraction (C14-C22)

Method used

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  • Method for preparing high-performance fuel oil by adopting mesoporous alkaline carbon materials to carry out catalytic cracking on grease
  • Method for preparing high-performance fuel oil by adopting mesoporous alkaline carbon materials to carry out catalytic cracking on grease

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Effect test

Embodiment 1

[0036] Dissolve 1g of mesoporous molecular sieve SBA-15 (hard templating agent) in 11mL of distilled water, add 1.25g of sucrose and 7.2mL of 0.2mol / L sulfuric acid, sonicate for 1h; evaporate the water to constant temperature at 90°C and then carbonized initially at 160°C for 6 hours; the initially carbonized product was ground through an 80-mesh sieve, then dissolved in 11 mL of water, and 0.75 g of sucrose and 4 mL of 0.2 mol / L sulfuric acid were added again; water evaporation at 90°C and 160 ℃ initial carbonization process; in N 2 Under the protection of the tube furnace, put it in a tube furnace at 900°C for 5h; dissolve the obtained product in a HF solution with a volume fraction of 5% and stir for 24h to remove the hard template agent; centrifuge, wash with distilled water until neutral, and dry in an oven at 60°C A mesoporous carbon support was obtained. Dissolve 0.05g of potassium carbonate in 10mL of distilled water; add 1g of mesoporous carbon carrier, and sonicate...

Embodiment 2

[0038] Dissolve 1g of mesoporous molecular sieve SBA-15 (hard templating agent) in 11mL of distilled water, add 1.25g of sucrose and 7.2mL of 0.2mol / L sulfuric acid, sonicate for 1h; evaporate the water to constant temperature at 90°C and then carbonized initially at 160°C for 6 hours; the initially carbonized product was ground through an 80-mesh sieve, then dissolved in 11 mL of water, and 0.75 g of sucrose and 4 mL of 0.2 mol / L sulfuric acid were added again; water evaporation at 90°C and 160 ℃ initial carbonization process; in N 2 Under the protection of the tube furnace, put it in a tube furnace at 900°C for 5h; dissolve the obtained product in a HF solution with a volume fraction of 5% and stir for 24h to remove the hard template agent; centrifuge, wash with distilled water until neutral, and dry in an oven at 60°C A mesoporous carbon support was obtained. Dissolve 0.05g of potassium carbonate in 10mL of distilled water; add 1g of mesoporous carbon carrier, and sonicate...

Embodiment 3

[0040] Dissolve 1g of mesoporous molecular sieve SBA-15 (hard templating agent) in 11mL of distilled water, add 1.25g of sucrose and 7.2mL of 0.2mol / L sulfuric acid, sonicate for 1h; evaporate the water to constant temperature at 90°C and then carbonized initially at 160°C for 6 hours; the initially carbonized product was ground through an 80-mesh sieve, then dissolved in 11 mL of water, and 0.75 g of sucrose and 4 mL of 0.2 mol / L sulfuric acid were added again; water evaporation at 90°C and 160 ℃ initial carbonization process; in N 2Under the protection of the tube furnace, put it in a tube furnace at 900°C for 5h; dissolve the obtained product in a HF solution with a volume fraction of 5% and stir for 24h to remove the hard template agent; centrifuge, wash with distilled water until neutral, and dry in an oven at 60°C A mesoporous carbon support was obtained. Dissolve 0.05g of potassium carbonate in 10mL of distilled water; add 1g of mesoporous carbon carrier, and sonicate ...

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Abstract

A method for preparing high-performance fuel oil by mesoporous basic carbon material catalytic cracking oil, comprising the following steps: the first step is to use the hard template method to synthesize the mesoporous carbon carrier, and the alkali that accounts for 1%-15% of the mass of the mesoporous carrier Hydroxide or carbonate of metal is supported on the surface of mesoporous carbon carrier to obtain basic mesoporous carbon catalyst; second step, by mass ratio m triglyceride: m basic mesoporous carbon catalyst=100:1~10 Weigh the triglyceride and the catalyst into the reactor, heat the reactor to 350-500°C, collect the resulting fractions, and obtain a dark brown liquid as the product. The carbon material of the present invention is an inert material, and can well maintain the original mesoporous structure after being loaded. The combination of basic catalyst and mesoporous material carrier can not only obtain low acid value catalytic cracking liquid fuel oil with less carboxyl content, but also control the molecular weight distribution of cracking products and obtain diesel fractions (C14-C22) in a directional manner.

Description

technical field [0001] The invention belongs to the technical field of biomass energy conversion, and mainly relates to the research of a new triglyceride catalytic cracking catalyst. Background technique [0002] The primary energy sources dominated by petroleum and coal are increasingly depleted, while biomass energy uses renewable or recycled organic substances, including crops, trees and other plants and their residues, as raw materials for the production of bio-based products and biofuels industry. Among them, the catalytic cracking of triglyceride is an effective method for preparing liquid fuel. In the previous patent (200910029495.X), we described the oil cracking reaction under the action of basic catalysis, but because only basic compounds are used as catalysts, the molecular weight distribution of cracked products is wide, and some raw materials are randomly pyrolyzed The reaction further generates low-carbon hydrocarbons, which reduces the yield. In order to i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G3/00B01J27/232B01J23/04
CPCY02P30/20
Inventor 蒋剑春徐俊明李静夏海虹周永红
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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