Hydrodeoxygenation method of bio-oil

A hydrodeoxygenation, bio-oil technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, treatment of hydrocarbon oil, etc., can solve the problem of poor hydrothermal stability, easy aggregation and deactivation of catalyst active phases and other problems, to achieve the effect of not easy to run off, increase the dispersibility of acid and active phase, and improve the performance of sulfur fixation

Active Publication Date: 2016-08-17
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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  • Hydrodeoxygenation method of bio-oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (1) Preparation of catalyst dry strips:

[0048] 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 0.7mL / g and a specific surface area of ​​280m 2 / g.

[0049] Add 100g of ammonium heptamolybdate, 30g of nickel nitrate and 1000g of ammonia water 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 to obtain the dry catalyst strip G1 impregnated wit...

Embodiment 2

[0060] (1) Preparation of dry catalyst strips: the same as in Example 1.

[0061] (2) Oxygenated organic matter treatment:

[0062] Place G1 in a ventilated vertical tube furnace, and roast at a constant temperature of 400°C for 3 hours. During the roasting process, the pre-configured aqueous solution with a phenol content of 7% by weight should be prepared according to the space velocity of 5h -1 , using a plunger pump to continuously push into the catalyst roasting bed layer, and finally obtain the catalyst C2 in the oxidation state. Wherein, relative to 100 parts by weight of dry catalyst strips, the mass of the aqueous solution introduced is 0.2 in total.

[0063] (3) Pretreatment before vulcanization

[0064] Phosphoric acid is selected as the VA oxygen-containing inorganic acid, and the total injection amount is 100g. Specifically, 100 g of phosphoric acid was mixed with 900 g of water to prepare a 10% by weight phosphoric acid aqueous solution. Under a nitrogen atmo...

Embodiment 3-7

[0070] The difference between embodiments 3 to 7 and embodiment 1 is that the metal active components are different, and the moles of the VIB group metal elements and the VIII group metal elements are all the same as those in the examples, and the compounds of the active components are respectively:

[0071] MoO 3 / CoCl 2 、WO 3 / CoCl 2 、WO 3 / Ni(NO 3 ) 2 、Cr 2 o 3 +MoO 3 (the two are mixed in equimolar) / CoCl 2 、Cr 2 o 3 +MoO 3 (the two are mixed in equimolar) / CoCl 2 +FeO.

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Abstract

The invention provides a hydrodeoxygenation method of bio-oil. The method includes the steps that a hydrodeoxygenation catalyst serves as a reaction catalyst, and hydrodeoxygenation treatment is conducted on the bio-oil; the preparation method of the hydrodeoxygenation catalyst includes the steps that in the process of calcinating a catalyst carrier soaked with active components, the catalyst carrier soaked with the active components is made to make contact with organic matter containing oxygen, and calcination is completed, so that a catalyst in an oxidation state is obtained; the catalyst in the oxidation state adsorbs inorganic acid, then sulfidizing is conducted, and a product is obtained; the active components are mainly composed of one of more types of VIB metal and one or more types of VIII metal. According to the method, the organic matter containing oxygen and inorganic acid are utilized to conduct pretreatment on the catalyst, selectivity of a hydrogenation decarboxylation decarbonylation reaction is increased, and sulfur fixation performance and heat stability of the catalyst are improved, so that the operation cycle of a device is prolonged.

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): C10G45/08B01J23/882B01J23/883B01J23/887B01J23/888B01J37/20
CPCB01J23/002B01J23/882B01J23/883B01J23/8878B01J23/888B01J37/20B01J2523/00C10G45/08C10G2300/70B01J2523/67B01J2523/68B01J2523/845B01J2523/842
Inventor 温明
Owner GUANGHAN TIANZHOU AERO ENGINE FUEL TECH CO LTD
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