CN105935589A - Method for hydrodeoxygenation of biological oil, catalyst used in method and preparation method of catalyst - Google Patents

Method for hydrodeoxygenation of biological oil, catalyst used in method and preparation method of catalyst Download PDF

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CN105935589A
CN105935589A CN201610284284.0A CN201610284284A CN105935589A CN 105935589 A CN105935589 A CN 105935589A CN 201610284284 A CN201610284284 A CN 201610284284A CN 105935589 A CN105935589 A CN 105935589A
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catalyst
acid
preparation
biological oil
oxygen
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CN105935589B (en
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温明
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Sichuan Tianzhou Biomass Energy Technology Co.,Ltd.
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Sichuan Kai Wosi Energy Science Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/002Mixed oxides other than spinels, e.g. perovskite
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/32Manganese, technetium or rhenium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/32Manganese, technetium or rhenium
    • B01J23/34Manganese
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G3/00Production of liquid hydrocarbon mixtures from oxygen-containing organic materials, e.g. fatty oils, fatty acids
    • C10G3/42Catalytic treatment
    • C10G3/44Catalytic treatment characterised by the catalyst used
    • C10G3/48Catalytic treatment characterised by the catalyst used further characterised by the catalyst support
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G3/00Production of liquid hydrocarbon mixtures from oxygen-containing organic materials, e.g. fatty oils, fatty acids
    • C10G3/50Production of liquid hydrocarbon mixtures from oxygen-containing organic materials, e.g. fatty oils, fatty acids in the presence of hydrogen, hydrogen donors or hydrogen generating compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2523/00Constitutive chemical elements of heterogeneous catalysts
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/70Catalyst aspects
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P30/00Technologies relating to oil refining and petrochemical industry
    • Y02P30/20Technologies relating to oil refining and petrochemical industry using bio-feedstock

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Catalysts (AREA)
  • General Chemical & Material Sciences (AREA)

Abstract

The invention provides a method for hydrodeoxygenation of biological oil, a catalyst used in the method and a preparation method of the catalyst. The preparation method comprises the steps: in a process of roasting a catalyst carrier impregnated with active components, the catalyst carrier impregnated with the active components makes contact with an oxygen-containing organic matter, and the roasting is completed to obtain an oxidation-state catalyst; the oxidation-state catalyst is subjected to sulfidizing treatment to obtain the product, wherein the active components contain at least one or more of group VB metals and one or more of group VIIB metals. The oxygen-containing organic matter is used for pretreating the catalyst, so the selectivity of a hydrogenation decarboxylation decarbonylation reaction is increased, and the sulfur fixation performance and the thermal stability of the catalyst are improved.

Description

The method of biological oil hydrodeoxygenation and catalyst used and preparation method thereof thereof
Technical field
The present invention relates to modifying oil product technical field, especially relate to the method for biological oil hydrodeoxygenation and catalyst used thereof and preparation method thereof.
Background technology
Along with increasingly sharpening of crude oil heaviness and environmental pollution, liquefied coal coil, Fischer-Tropsch synthesis oil and bio oil (various vegetable and animals oils) enjoy the concern of researcher as preferable fungible energy source, especially bio oil, because it has pollutant emission is few, cycle period is short feature and becomes the focus of research.Compared with crude oil, in bio oil, the content of oxygenatedchemicals is higher, and main oxygenatedchemicals type includes phenols, furans, esters and ketone etc..Existence due to a large amount of oxygenatedchemicalss, the oxygen content of biological oil product is sometime up to more than 50 weight %, thus cause bio oil to have combustion heat value is low, unstable chemcial property, heating are easily polymerized, acid compared with strong, to unfavorable features such as the corrosivity of equipment are big, seriously hinder it directly to use as vehicle fuel, it is therefore desirable to by hydrogenation deoxidation, bio oil is carried out upgrading.
Animals and plants main body of oil is triglyceride, and fatty acid chain length is generally C14~C22, wherein C16And C18Account for the 90% of all fatty acids.The diesel component that vegetable and animals oils hydrogenation deoxidation is prepared is mainly by C12~C22Linear paraffin composition, its Cetane number, up to 90~100, can be in harmonious proportion with petroleum diesel in any proportion, and without sulfur, without aromatic hydrocarbons, the most oxygen-containing, NOx emission is few, environmental friendliness, and storage stability is good, can use as high cetane number diesel oil addO-on therapy.Therefore, vegetable and animals oils hydrogenation deoxidation prepares biodiesel technology, acts on a kind of novel renewable automobile-used supplementing and is favored by people with alternative fuel.
Vegetable and animals oils Hydrogenation for containing multiple chemical reaction during diesel component, mainly have that the hydrogenation of unsaturated fatty acid in vegetable and animals oils is saturated, hydrogenation deoxidation, hydrogenation decarboxylation, hydrogenation de-carbonyl reaction, the most also hydroisomerization reaction etc..At present, the catalyst that the reaction of vegetable and animals oils hydrogenation deoxidation is used has higher hydrodesulfurization and hydrogenation deoxidation activity, the most also has higher hydrogenation deoxidation initial activity, but shortcoming is poor catalyst stability, it is easy to inactivation.
Such as, CN1946831A and US7608558 discloses a kind of carbon monoxide-olefin polymeric, it contains selected from the group vib metal component of molybdenum, tungsten and mixture thereof and selected from vanadium, niobium and the V race metal component of tantalum and mixture thereof with selected from nickel, cobalt, ferrum and the group VIII metal component of mixture thereof, these metal components (calculating with oxide) are constituted at least 50 weight % of catalyst, and wherein the mol ratio between metal component meets following formula: (group vib+V race): (VIII)=(0.35-2): 1.Research shows, this carbon monoxide-olefin polymeric shows high activity and good aromatic compounds removal capacity in terms of removal of sulphur.But, this catalyst easy in inactivation, hydrothermal stability in hydrogenation deoxidation reacts is poor.
Therefore, the hydrogenation deoxidation catalyst preparation method for preparing biodiesel of a kind of high activity and stability of exploitation is needed at present badly.
Summary of the invention
It is an object of the invention to provide the preparation method of a kind of catalyst for biological oil hydrodeoxygenation, described preparation method utilizes mineral acid that catalyst is carried out pretreatment, add the selectivity of hydrogenation decarboxylation decarbonylation reaction, improve sulfur fixation performance and the heat stability of catalyst.
Another object of the present invention is to provide a kind of catalyst for biological oil hydrodeoxygenation, described catalyst has hydrogenation decarboxylation decarbonylation selectivity height, sulfur fixation performance and heat stability high.
The third object of the present invention is a kind of method providing biological oil hydrodeoxygenation, described method can the cycle of operation of extension fixture, improve production efficiency.
The preparation method of a kind of catalyst for biological oil hydrodeoxygenation, comprises the following steps:
During roasting is impregnated with the catalyst carrier of active component, make described in be impregnated with the catalyst carrier of active component and contact with oxygen-bearing organic matter, complete described roasting and obtain oxidized catalyst;
Described oxidized catalyst is carried out vulcanizing treatment, obtains product;
Wherein, described active component at least contains one or more in one or more in VB race metal, and VIIB race metal.
As a rule, the main cause of vegetable and animals oils hydrogenation deoxidation catalyst inactivation has the exchange of carbon deposit, oxygen sulfur and carrier to be hydrated the carrier specific surface area reduction caused and activity gathering mutually etc..Therefore the specific surface area that the hydration of suppression carrier causes reduces and the gathering of activity phase, and the raising for hydrogenation deoxidation catalyst stability has important function.But prior art is generally not capable of taking into account suppression carrier hydration and high two effects of reaction selectivity.As a example by existing alumina support, the aluminium oxide that hydrogenation deoxidation catalyst is used is spinel-like type structure, the a large amount of cation in its surface and anion vacancy play pivotal role for alumina hydration, therefore widespread practice is all to pass through support modification, add auxiliary agent atom and occupy alumina carrier surface room, thus suppress carrier to be hydrated;But, the shortcoming of this way is to reduce active metal and carrier Interaction Force, thus impact vulcanizes the active facies type of rear catalyst to a certain extent, and and then reduces hydrogenation deoxidation and the selectivity of decarboxylation.
And the preparation method oxygen-bearing organic matter of the present invention carries out pretreatment to catalyst, and select VB race, VIIB race two metalloid component, not only inhibit the hydration of carrier, play increase acidity of catalyst and active phase dispersion, and and then increase the decarboxylation decarbonylation reaction selectivity to dehydration, but also improve the sulfur fixation performance of catalyst, make the sulfur in catalyst not easily run off in course of reaction, even if without vulcanizing agent, its sulphidity remains above catalyst prepared by conventional method.
Catalyst of the present invention is mainly used in the hydrogenation deoxidation modification of vegetable and animals oils, naturally it is also possible to for other modifying oil product, even more technical field.
The above-mentioned preparation method of the present invention can also be improved, such as further:
Oxygen-bearing organic matter of the present invention refers to arbitrarily contain the Organic substance of oxygen atom, is selected from one or more in Organic Alcohol, organic acid, organic ketone, phenols, preferably Organic Alcohol and/or organic acid.
Under normal circumstances, after Organic Alcohol, organic acid process, the selectivity to hydrogenation decarboxylation decarbonylation reaction is higher.
Described Organic Alcohol can be selected from one or more in one or more in ethylene glycol, glycerol, Polyethylene Glycol, diethylene glycol and butanediol, preferably ethylene glycol, glycerol and Polyethylene Glycol;The number-average molecular weight of described Polyethylene Glycol is preferably 200-1500.
Described organic acid can be selected from acetic acid, maleic acid, oxalic acid, aminotriacetic acid, 1,2-CDTA, citric acid, tartaric acid, malic acid, 1, one or more in one or more in 2-1,2-diaminocyclohexane tetraacetic acid, glycine, nitrilotriacetic acid(NTA) and ethylenediaminetetraacetic acid, preferably acetic acid, citric acid and ethylenediaminetetraacetic acid.
Described phenolic compound can be selected from one or more in phenol, Benzodiazepines, benzenetriol, cresol, amino phenols, nitrophenols, chlorophenol, preferably phenol and/or Benzodiazepines.
Above-mentioned oxygen-bearing organic matter contacts when contacting with catalyst carrier the most as a solution, the mode of contact also has a variety of, can be the most all mixing, can also be that the solution of oxygen-bearing organic matter is continuously injected in catalyst carrier, can be fully contacted and be attached together both ensureing.More than carrying out roasting while contact, the temperature of described roasting is preferably 400-600 DEG C, more preferably 420-500 DEG C;The time of described roasting is preferably 2-8h, more preferably 3-6h.The selectivity of the hydrogenation decarboxylation decarbonylation of catalyst, and heat stability can be improved by above preferably roasting condition, extend the cycle of operation of oil product processing unit (plant).
When the described herein above way of contact being continuously injected into, described oxygen-bearing organic matter is preferably with 0.1-20h-1Air speed contact with the described catalyst carrier being impregnated with active component, more preferably 1-10h-1.The problem selecting the strength reduction that suitable air speed can avoid catalyst efflorescence to cause.
Consumption about oxygen-bearing organic matter, it is preferable that be impregnated with the catalyst carrier of active component described in making when contacting with oxygen-bearing organic matter, described oxygen-bearing organic matter is 0-10% with the mass ratio of described catalyst carrier, it is preferably 5-8%, preferably 0.1-5%, preferably 0.05-4%.
Catalyst carrier of the present invention can use any conventional can type, such as the mixture of at least one in alumina support, or aluminium oxide and silicon oxide, titanium oxide and zirconium oxide;Wherein, described aluminium oxide can be such as at least one in gama-alumina, η-aluminium oxide, θ-aluminium oxide, δ-aluminium oxide and χ-aluminium oxide.Additionally, described carrier can be cloverleaf pattern, butterfly, cylinder, hollow cylindrical, quatrefoil, five shapes such as leaf, spherical.Above-mentioned carrier can be commercially available, it is also possible to according to well known to a person skilled in the art that various method prepares.Such as, alumina support can be by by aluminium oxide precursor roasting so that it is be converted at least one in gama-alumina, η-aluminium oxide, θ-aluminium oxide, δ-aluminium oxide and χ-aluminium oxide.Optionally, before firing and/or afterwards, the shape (such as spherical, lamellar, bar shaped etc.) required for practical operation can be suitable for first by aluminium oxide precursor molding with preparation.Described molding can be carried out, such as rolling ball method, pressed disc method and extrusion method etc. according to the method that this area is conventional.In forming process, such as during extruded moulding, in order to ensure being smoothed out of molding, water, extrusion aid and/or peptizer can be added in described aluminium oxide precursor, and be optionally added expanding agent, then extrusion molding, it is dried afterwards and roasting.The kind of described extrusion aid, peptizer and expanding agent and consumption can use the process of routine, such as, common extrusion aid can be selected from least one in sesbania powder, methylcellulose, starch, polyvinyl alcohol and PVOH, described peptizer can be Organic Alcohol and/or organic acid, and described expanding agent can be at least one in starch, synthetic cellulose, polymeric alcohol and surfactant.Wherein, at least one during described synthetic cellulose is preferably hydroxymethyl cellulose, methylcellulose, ethyl cellulose and hydroxyl fiber fat alcohol polyethylene ether.Described polymeric alcohol is preferably at least one in Polyethylene Glycol, poly-propanol and polyvinyl alcohol.Described surfactant preferably fat alcohol polyethylene ether, fatty alkanol amide and derivant thereof, molecular weight are at least one in the propenyl copolymer of 200-10000 and maleic acid copolymer.The condition that extrusion bar is dried is generally included: baking temperature can be 40-350 DEG C, preferably 100-200 DEG C;Drying time can be 1-24 hour, preferably 2-12 hour.The condition of dried extrusion bar roasting is generally included: sintering temperature can be 350-1000 DEG C, preferably 600-950 DEG C;Roasting time can be 1-10 hour, preferably 2-6 hour.Described aluminium oxide precursor can be selected from least one in Alumina hydrate, monohydrate alumina, amorphous hydroted alumina etc..
VB race metal component of the present invention and VIIB race metal component generally exist with the form of its oxide.The example of described VB race metal component includes but not limited to: vanadium oxide (V2O5), niobium oxide (Nb2O5) and tantalum oxide (Ta2O5).The example of described VIIB race metal component includes but not limited to: manganese oxide, technetium oxide, rheium oxide etc..
Preferably, in order to improve deoxidation effectiveness and specific surface area, on the basis of described catalyst carrier, the content of VB race metallic compound is 0.01-11.2wt%;Preferably, the content of VIIB race metallic compound is 0.01-10wt%.
In catalyst carrier, the method for impregnating metal active component has a variety of, such as infusion process, spraying.Preferably, by carrier impregnation in the impregnation liquid of the compound of metallic components, then it is dried.Wherein, the solvent in impregnation liquid can be the various inertia liquids that can dissolve described VB race metallic compound and VIIB race metallic compound, for example, it is possible at least one in water, alcohol, ether, aldehyde and ketone.
It addition, finally the vulcanizing treatment to catalyst can use dry pre-sulfiding or wet method sulfuration.Specifically, for dry pre-sulfiding, the curing medium of employing can be H2And H2H in the mixture of S, and described curing medium2The volumetric concentration of S can be 0.1-5v%, preferably 1-2v%.For vulcanizing for wet method, it generally uses and faces hydrogen sulfuration, and the curing medium of employing can be that in diesel oil and disulphide and/or the mixture of mercaptan, and described curing medium, the volumetric concentration of sulphur-containing substance can be 0.1-10v%, it is preferably 0.1-3.5v%, more preferably 0.4-2v%.Wherein, described disulphide can be CS2、CH3-S-S-CH3And CH3-S-S-C2H5In at least one.Described mercaptan can be C4H9SH、C2H5SH and CH3At least one in SH.
The most dry pre-sulfiding method is: with the speed of 25-35 DEG C/h, from 20-40 DEG C, the temperature of vulcanizing system is risen to 160-180 DEG C, and starts into H2S;With the speed of 10-20 DEG C/h, the temperature of vulcanizing system is risen to 220-240 DEG C again, and maintain gas phase H in vulcanizing system at such a temperature2S concentration is constant and constant temperature vulcanizes 2-6h;With the speed of 5-15 DEG C/h, the temperature of vulcanizing system is risen to 270-290 DEG C and constant temperature sulfuration 2-6h again;With the speed of 5-15 DEG C/h, the temperature of vulcanizing system is risen to 300-370 DEG C the most again, and maintain gas phase H in vulcanizing system at such a temperature2S concentration is constant and constant temperature vulcanizes 2-6h.
Compared with prior art, invention achieves techniques below effect:
(1) with VB race metal, VI I B race metal as active component, in conjunction with the pretreatment of oxygen-bearing organic matter, improve the sulfur fixation performance of catalyst, heat stability is, and the selectivity of hydrogenation decarboxylation decarbonylation reaction;
(2) can be used for vegetable and animals oils and prepare diesel oil;
(3) specific area and the sulphidity of catalyst of the present invention are more stable.
Detailed description of the invention
Below in conjunction with detailed description of the invention, technical scheme is clearly and completely described, but it will be understood to those of skill in the art that, following described embodiment is a part of embodiment of the present invention, rather than whole embodiments, it is merely to illustrate the present invention, and is not construed as limiting the scope of the present invention.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.Unreceipted actual conditions person in embodiment, the condition advised according to normal condition or manufacturer is carried out.Agents useful for same or instrument unreceipted production firm person, being can be by the commercially available conventional products bought and obtain.
Air speed of the present invention refers both to " volume space velocity ".
Embodiment 1
(1) the dry bar of catalyst is prepared:
Weigh 1000 grams of dry glue powders and 30 grams of sesbania powder mix homogeneously, add 900 milliliters of nitre aqueous acids Han 28g afterwards, plunger type bar extruder is extruded into the wet bar of cylinder of external diameter φ 1.4mm.Then being dried 4 hours in 120 DEG C by cylindrical wet bar, then at 600 DEG C of roastings 3 hours, obtain carrier Z, its pore volume is 0.7mL/g, and specific surface area is 280m2/g。
100g ammonium metavanadate, 30g manganese carbonate and 1000g citric acid are added in 400mL aqueous solution, heats and stir to after being completely dissolved, obtaining impregnation liquid 500mL.Take 400g above-mentioned carrier Z, above-mentioned impregnation liquid is the most uniformly sprayed on carrier Z, then half dry catalyst obtained put in baking oven and dry 4 hours in 120 DEG C, obtaining being impregnated with the catalyst dry bar G1 of active component.
(2) oxygen-bearing organic matter processes:
G1 is placed in ventable vertical tubular furnace, 400 DEG C of constant temperature calcinings 3 hours, roasting process needs by the aqueous solution that pre-configured acetic acid content is 5 weight %, according to air speed 2h-1, persistently squeeze in catalyst roasting bed with plunger displacement pump, finally give oxidized catalyst C1.Wherein, relative to the dry bar of the catalyst of 100 weight portions, the quality being passed through aqueous solution amounts to 0.01.
(3) sulfuration:
With the speed of 30 DEG C/h, the temperature of vulcanizing system is risen to 180 DEG C from 30 DEG C, and start into H2S;With the speed of 10 DEG C/h, the temperature of vulcanizing system is risen to 240 DEG C again, and maintain gas phase H in vulcanizing system at such a temperature2S concentration is constant and constant temperature vulcanizes 4h;With the speed of 15 DEG C/h, the temperature of vulcanizing system is risen to 290 DEG C and constant temperature sulfuration 6h again;With the speed of 15 DEG C/h, the temperature of vulcanizing system is risen to 320 DEG C the most again, and maintain gas phase H in vulcanizing system at such a temperature2S concentration is constant and constant temperature vulcanizes 5h.
Embodiment 2
(1) the dry bar of catalyst is prepared:
Weigh 1000 grams of dry glue powders and 30 grams of sesbania powder mix homogeneously, add 900 milliliters of nitre aqueous acids Han 28g afterwards, plunger type bar extruder is extruded into the wet bar of cylinder of external diameter φ 1.4mm.Then being dried 4 hours in 120 DEG C by cylindrical wet bar, then at 600 DEG C of roastings 3 hours, obtain carrier Z, its pore volume is 0.62mL/g, and specific surface area is 280m2/g。
100g ammonium metavanadate, 30g manganese carbonate and 1000g citric acid are added in 400mL aqueous solution, heats and stir to after being completely dissolved, obtaining impregnation liquid 500mL.Take 400g above-mentioned carrier Z, above-mentioned impregnation liquid is the most uniformly sprayed on carrier Z, then half dry catalyst obtained put in baking oven and dry 4 hours in 120 DEG C, obtaining being impregnated with the dry bar of catalyst of active component..
(2) oxygen-bearing organic matter processes:
Dry for catalyst bar is placed in ventable vertical tubular furnace, 400 DEG C of constant temperature calcinings 3 hours, roasting process needs by the aqueous solution that pre-configured phenol content is 7 weight %, according to air speed 5h-1, persistently squeeze in catalyst roasting bed with plunger displacement pump, finally give oxidized catalyst C2.Wherein, relative to the dry bar of the catalyst of 100 weight portions, the quality being passed through aqueous solution amounts to 0.2.
(3) sulfuration:
Same as in Example 1.
Embodiment 3-5
Embodiment 3-5 and embodiment 1 to differ only in metal active constituent different, the molal quantity of its VB race metallic element, VI I B race metallic element the molal quantity of metal of all corresponding with the embodiment race of molal quantity identical, the compound of active component is respectively as follows:
V2O5/ manganese oxide, niobium oxide/manganese carbonate, V2O5/ technetium oxide.
Embodiment 6-7
Embodiment 6-7 is different from the active component consumption differing only in dipping of embodiment 1, and consumption is respectively as follows: 0.1g ammonium metavanadate/100g manganese carbonate, 112g ammonium metavanadate/0.1g manganese carbonate.
Embodiment 8-14
Embodiment 8-14 is different from the consumption differing only in acetic acid used during oxygen-bearing organic matter processes of embodiment 1, but consumption identical (percentage by weight), oxygen-bearing organic matter is respectively as follows:
Ethylene glycol, glycerol, Polyethylene Glycol (molecular weight 200), Polyethylene Glycol (molecular weight 1500), ethylenediaminetetraacetic acid, citric acid, Benzodiazepines.
Embodiment 15
Different from the consumption differing only in acetic acid used during oxygen-bearing organic matter processes of embodiment 1, on the basis of the quality of Z, consumption is: 1%.
Embodiment 16-18
Embodiment 16-18 and embodiment 1 to differ only in sintering temperature when oxygen-bearing organic matter processes different, be respectively as follows: 420 DEG C, 500 DEG C, 600 DEG C.
Embodiment 19-21
Embodiment 19-21 and embodiment 1 to differ only in roasting time when oxygen-bearing organic matter processes different, be respectively as follows: 2h, 6h, 8h.
Embodiment 22-25
Embodiment 22-25 and embodiment 1 to differ only in air speed when oxygen-bearing organic matter processes different, be respectively as follows: 0.1h-1、1h-1、10h-1、20h-1
Comparative example 1
The dry bar G1 that in Example 1 prepared by step (1), in 400 DEG C of roastings 3 hours, obtains reference oxidized catalyst, is directly entered sulfurating stage, and vulcanization process is with embodiment 1.
Comparative example 2
The carrier Z of Example 1 preparation.100g ammonium heptamolybdate, 50g nickel nitrate and 1000g ammonia are added in 400mL aqueous solution, heats and stir to after being completely dissolved, obtaining impregnation liquid 500mL.Take 400g above-mentioned carrier Z, above-mentioned impregnation liquid is the most uniformly sprayed on carrier Z, then half dry catalyst obtained put in baking oven and dry 4 hours in 120 DEG C, then at 400 DEG C of roastings 3 hours, obtaining comparative catalyst, enter sulfurating stage afterwards, vulcanization process is with embodiment 1.
The quality evaluation of catalyst:
Reaction pressure be 5.0MPa, temperature 350 DEG C, liquid hourly space velocity (LHSV) 1.5h-1, under the conditions of hydrogen to oil volume ratio is 900, Oleum Ricini is carried out hydrogenation deoxidation modification, evaluates each catalyst performance.Result shows, all embodiments all show following characteristics: the catalyst of all embodiments of the present invention is after running 100h, hydrogenation decarboxylation and hydrogenation decarbonylation selectivity are more than 25%, on unloading rear catalyst, unloading rear catalyst (is characterized more than 70% by V sulphidity with x-ray photoelectron spectroscopic technique, it is impregnated with V, accounts for the ratio of total V atom to represent V sulphidity with+2 ,+3 and+4 valency vanadium atoms on catalyst;It is impregnated with molybdenum, accounts for the ratio of total Mo atom to represent Mo sulphidity with+4 valency molybdenum atoms on catalyst), the specific surface area of unloading rear catalyst is at 250m2/ more than g, and the diesel oil distillate obtained can be in harmonious proportion in any proportion with petroleum diesel, and without sulfur, without aromatic hydrocarbons, the most oxygen-containing, NOx emission is few, environmental friendliness, and storage stability is good, can use as high cetane number diesel oil addO-on therapy.
The concrete outcome of section Example is listed below, and as shown in Table 1 and Table 2, table 1 is the result after running 24 hours, and table 2 is the result after running 100h.
Table 1
Table 2
From the result of Tables 1 and 2 it can be seen that compared with two comparative examples, the catalyst of the present invention, when modifying bio-oil, has higher stability and hydrogenation decarboxylation selectivity, and hydrothermal energy is good, sulphidity is high.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit;Although the present invention being described in detail with reference to foregoing embodiments, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or the most some or all of technical characteristic is carried out equivalent;And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims (10)

1. the preparation method for the catalyst of biological oil hydrodeoxygenation, it is characterised in that include Following steps:
During roasting is impregnated with the catalyst carrier of active component, make described in be impregnated with activity group The catalyst carrier divided contacts with oxygen-bearing organic matter, completes described roasting and obtains oxidized catalyst;
Described oxidized catalyst is carried out vulcanizing treatment, obtains product;
Wherein, described active component at least contains one or more in VB race metal, and VIIB One or more in race's metal.
The preparation method of the catalyst for biological oil hydrodeoxygenation the most according to claim 1, It is characterized in that, described oxygen-bearing organic matter is selected from Organic Alcohol, organic acid, organic ketone, phenols Plant or multiple, preferably Organic Alcohol and/or organic acid;
Described Organic Alcohol is in ethylene glycol, glycerol, Polyethylene Glycol, diethylene glycol and butanediol Plant or multiple, preferably one or more in ethylene glycol, glycerol and Polyethylene Glycol;Described poly-second The number-average molecular weight of glycol is preferably 200-1500;
Described organic acid is acetic acid, maleic acid, oxalic acid, aminotriacetic acid, 1,2-cyclohexane diamine four Acetic acid, citric acid, tartaric acid, malic acid, 1,2-1,2-diaminocyclohexane tetraacetic acid, glycine, secondary nitrogen One or more in base triacetic acid and ethylenediaminetetraacetic acid, preferably acetic acid, citric acid and ethylenediamine One or more in tetraacethyl;
Described phenolic compound selected from phenol, Benzodiazepines, benzenetriol, cresol, amino phenols, nitrophenols, One or more in chlorophenol, preferably phenol and/or Benzodiazepines.
The preparation method of the catalyst for biological oil hydrodeoxygenation the most according to claim 1, It is characterized in that, described catalyst carrier is alumina support;Described VB race metal is preferably vanadium, niobium With at least one in tantalum, described VIIB race metal is preferably at least one in manganese, technetium and rhenium;Institute State active component and be preferably vanadium and manganese.
4. according to the preparation side of the catalyst for biological oil hydrodeoxygenation described in claim 1 or 3 Method, it is characterised in that on the basis of described catalyst carrier, the content of VB race metallic compound is 0.01-11.2wt%;Preferably, on the basis of described catalyst carrier, VIIB race metallic compound Content is 0.01-10wt%.
The preparation method of the catalyst for biological oil hydrodeoxygenation the most according to claim 1, It is characterized in that, the temperature of described roasting is 400-600 DEG C, preferably 420-500 DEG C;Preferably, The time of described roasting is 2-8h, preferably 3-6h.
The preparation side of the catalyst for biological oil hydrodeoxygenation the most according to claim 1 and 2 Method, it is characterised in that the described method that contacts with oxygen-bearing organic matter is: described oxygen-bearing organic matter with 0.1-20h-1Air speed contact with the described catalyst carrier being impregnated with active component, preferably 1-10h-1
The preparation side of the catalyst for biological oil hydrodeoxygenation the most according to claim 1 and 2 Method, it is characterised in that the catalyst carrier being impregnated with active component described in making contacts with oxygen-bearing organic matter Time, described oxygen-bearing organic matter is 0-10%, preferably 5-8% with the mass ratio of described catalyst carrier, It is preferably 0.1-5%, preferably 0.05-4%.
The preparation method of the catalyst for biological oil hydrodeoxygenation the most according to claim 1, It is characterized in that, described in be impregnated with the catalyst carrier of active component possibly together with extrusion aid, peptizer and One or more in expanding agent.
9. the catalyst for biological oil hydrodeoxygenation, it is characterised in that use claim 1-8 Preparation method described in any one prepares.
10. the method for biological oil hydrodeoxygenation, it is characterised in that use the catalysis described in claim 9 Agent carries out hydrogenation deoxidation modification to bio oil.
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