Bio-oil hydrodeoxygenation method

A technology for hydrodeoxygenation and bio-oil, which is applied in the fields of biological raw materials, chemical instruments and methods, and preparation of liquid hydrocarbon mixtures, can solve the problems of easy aggregation and deactivation of catalyst active phases, poor hydrothermal stability, etc. Active phase dispersibility, not easy to run off, and the effect of improving sulfur fixation performance

Active Publication Date: 2016-08-24
GUANGHAN TIANZHOU AERO ENGINE FUEL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similarly, the catalyst also has disadvantages such as poor hydrothermal stability and easy aggregation and deactivation of the active phase of the catalyst.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] (1) Preparation of oxidation state catalyst:

[0041] Take by weighing 1000 grams of dry rubber powder and 30 grams of safflower powder and mix them evenly, then add 900 milliliters of aqueous solution containing 28 g of nitric acid, and extrude them into cylindrical wet bars with an outer diameter of φ1.4 mm on a plunger extruder. Then the cylindrical wet strip was dried at 120°C for 4 hours, and then calcined at 600°C for 3 hours to obtain carrier Z with a pore volume of 0.62mL / g and a specific surface area of ​​280m 2 / g.

[0042] Add 50g of ammonium metavanadate, 50g of manganese carbonate and 1000g of citric acid into 400mL of aqueous solution, heat and stir until completely dissolved to obtain 500mL of impregnation solution. Take 400g of the above-mentioned carrier Z, spray all the above-mentioned impregnating liquid evenly on the carrier Z, then put the obtained semi-dry catalyst into an oven and dry it at 120°C for 4 hours, and then place it in a ventilated tub...

Embodiment 2

[0051] (1) Preparation of oxidation state catalyst:

[0052] Take by weighing 1000 grams of dry rubber powder and 30 grams of safflower powder and mix them evenly, then add 900 milliliters of aqueous solution containing 28 g of nitric acid, and extrude them into cylindrical wet bars with an outer diameter of φ1.4 mm on a plunger extruder. Then the cylindrical wet strip was dried at 120°C for 4 hours, and then calcined at 600°C for 3 hours to obtain carrier Z with a pore volume of 0.62mL / g and a specific surface area of ​​280m 2 / g.

[0053] Add 28g of ammonium metavanadate and 18g of manganese carbonate into 350mL of citric acid aqueous solution, heat and stir until the ammonium metavanadate and citric acid are completely dissolved to obtain 500mL of impregnation solution. The same method as in Example 1 was used to impregnate the support Z to obtain the hydrodeoxygenation catalyst C2.

[0054] (2) Pretreatment before vulcanization

[0055] Phosphoric acid is selected as th...

Embodiment 3

[0061] (1) Preparation of oxidation state catalyst:

[0062] Take by weighing 1000 gram of dry rubber powder and 30 gram of asparagus powder and mix homogeneously, then add 900 milliliters of the aqueous solution that contains 28g nitric acid, extrude into the cylindrical wet strip of outer diameter φ 1.4mm on the plunger extruder. Then the cylindrical wet strip was dried at 120°C for 4 hours, and then calcined at 600°C for 3 hours to obtain carrier Z with a pore volume of 0.62mL / g and a specific surface area of ​​280m 2 / g.

[0063] Add 60g of ammonium metavanadate and 70g of manganese carbonate into 350mL of aqueous solution, heat and stir until the ammonium metavanadate and citric acid are completely dissolved to obtain 500mL of impregnation solution. The same method as in Example 1 was used to impregnate the carrier Z to obtain the hydrodeoxygenation catalyst C3.

[0064] (2) Pretreatment before vulcanization

[0065] Phosphoric acid is selected as the VA oxygen-contain...

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Abstract

The invention provides a bio-oil hydrodeoxygenation method, which comprises the following steps that a hydrodeoxygenation catalyst is used as a reaction catalyst; bio-oil is subjected to hydrodeoxygenation treatment. A preparation method of the hydrodeoxygenation catalyst comprises the following steps of taking roasted catalyst carriers soaked with active ingredients; absorbing oxygen inorganic acid by the catalyst carriers; then performing vulcanization treatment to obtain a product, wherein the active ingredients are mainly formed by one or a plurality of kinds of VB group metals and one or a plurality of kinds of VIIB group metals. The inorganic acid is used for performing pre-treatment on the catalyst, so that the selectivity of the hydrogenation decarboxylation and decarbonylation reaction is improved; the sulfur fixation performance and the thermal stability of the catalyst are improved.

Description

technical field [0001] The invention relates to the technical field of oil upgrading, in particular to a method for hydrodeoxygenation of bio-oil. Background technique [0002] With the increasing of heavy crude oil and environmental pollution, coal liquefied oil, Fischer-Tropsch synthetic oil and bio-oil (various animal and vegetable oils) have attracted the attention of researchers as ideal alternative energy sources, especially bio-oil, because of its It has the characteristics of less pollutant discharge and short cycle period, so it has become the focus of research. Compared with crude oil, the content of oxygenated compounds in bio-oil is higher, and the main types of oxygenated compounds include phenols, furans, esters and ketones. Due to the existence of a large number of oxygen-containing compounds, the oxygen content of bio-oil sometimes reaches as high as 50% by weight, resulting in bio-oil with low combustion calorific value, unstable chemical properties, easy p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00B01J27/198B01J27/195B01J27/04
CPCY02P30/20C10G3/44B01J27/04B01J27/195B01J27/198C10G2300/202
Inventor 温明
Owner GUANGHAN TIANZHOU AERO ENGINE FUEL TECH CO LTD
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