CN107867993A - A kind of organic-molybdenum salt composite and preparation method thereof - Google Patents
A kind of organic-molybdenum salt composite and preparation method thereof Download PDFInfo
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- CN107867993A CN107867993A CN201610860464.9A CN201610860464A CN107867993A CN 107867993 A CN107867993 A CN 107867993A CN 201610860464 A CN201610860464 A CN 201610860464A CN 107867993 A CN107867993 A CN 107867993A
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/41—Preparation of salts of carboxylic acids
- C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/04—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing carboxylic acids or their salts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/20—Sulfiding
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- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
- C07C53/02—Formic acid
- C07C53/06—Salts thereof
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- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
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- C07C53/126—Acids containing more than four carbon atoms
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C55/00—Saturated compounds having more than one carboxyl group bound to acyclic carbon atoms
- C07C55/02—Dicarboxylic acids
- C07C55/10—Succinic acid
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING 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
- C10G47/00—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions
- C10G47/02—Cracking of hydrocarbon oils, in the presence of hydrogen or hydrogen- generating compounds, to obtain lower boiling fractions characterised by the catalyst used
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/26—Carboxylic acids; Salts thereof
- C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M129/30—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 7 or less carbon atoms
- C10M129/32—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 7 or less carbon atoms monocarboxylic
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/26—Carboxylic acids; Salts thereof
- C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M129/30—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 7 or less carbon atoms
- C10M129/34—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 7 or less carbon atoms polycarboxylic
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/26—Carboxylic acids; Salts thereof
- C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M129/38—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms
- C10M129/40—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms monocarboxylic
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
- C10M2207/122—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms monocarboxylic
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
- C10M2207/123—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms polycarboxylic
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/12—Groups 6 or 16
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
Abstract
A kind of organic-molybdenum salt composite and preparation method thereof, described organic-molybdenum salt composite contains molybdenum ion, and the C1~C16 organic anions combined with molybdenum ion, contains oxygen atom in described organic anion, wherein, the valence distribution of molybdenum is+trivalent molybdenum ion in molybdenum ion：+ 4 valency molybdenum ions：The mol ratio of+5 valency molybdenum ions is (0.1~20.0)：(15.0~45.0)：(40.0~75.0).Organic-molybdenum salt tenor provided by the invention is high, and dissolubility is good in oil phase, and available for slurry bubble bed residual hydrogenation as catalyst precursors, course of reaction high conversion rate, product characteristicses are stable, without filtration step.Organic-molybdenum salt composite synthesis cost provided by the invention is low, production line environmental protection, non-pollutant discharge in production process.
Description
Technical field
The present invention relates to a kind of organic matter containing molybdenum and preparation method thereof, combined more specifically to a kind of organic-molybdenum salt
Thing and preparation method thereof.
Background technology
Global Oil resource shows increasingly heaviness, in poor quality, to meet growth of the national economic demand and people's lives
Need, deep processing, the problem of improving the utilization rate of resource turns into people's growing interest are carried out to heavy oil.Heavy Oil Processing Technology is divided into
Two classes：Decarburization and hydrogenation, in order to further improve light oil yield, hydrogenation technique plays more and more important in mink cell focus manufacture field
Effect.Slurry bubble bed residual hydrogenation process uses homogeneous catalyst, and catalyst precursor is dispersed in residual oil, then directly logical
Cross reactor and carry out hydrogenation reaction, slurry bubble bed Residue Hydrotreating Technology adaptability to raw material is stronger, overcomes fixed bed hydrogenation difficult processing
The problem of to process inferior raw material, the poor residuum that tenor is high, carbon residue is high can be handled.Slurries bed process in recent years is normal
With disperse type catalyzer, disperse type catalyzer is mainly the water-soluble and class of oil-soluble two, and disperse type catalyzer is dispersed in heavy oil
In particle diameter very small (submicron order) metal sulfide grain, due to catalyst, decentralization is high in heavy oil, catalyst particles
The ability of grain activation hydrogen and saturation macromolecular radical greatly enhances, and these catalyst precursors mix with residual oil, and in certain hydrogen
The sulfide type catalyst that pressure is suspended by thermosetting, there is preferable hydrogenation activity and the burnt activity of suppression.Add in slurry bubble bed residual oil
In hydrogen reaction, molybdate compound needs to be converted into MoS2Higher catalytic activity could be obtained.For this, need to chemical combination containing molybdenum
Thing carries out presulfurization processing, and the catalyst dispersity after vulcanization turns into the important determinant for influenceing catalyst activity.
Oil-soluble catalyst can in oil high degree of dispersion, vulcanization is convenient and easy, and hydrogenation activity is high, tailings solid content is low, oil
Metal Mo hydrogenation activity is higher than other transition metal (such as Ni, v, Co), therefore slurries in recent years in soluble catalytic agent
Homogeneous molybdenum series catalyst is a kind of major catalyst in the catalyst that bed process uses, and oil-soluble molybdate compound is current residual oil slurry
Liquid bed faces the most potential catalyst precursor of hydrogen thermal transition, have the characteristics that usage amount it is small, it is active it is high, cost is low, easily scattered.
During slurry bubble bed residual hydrogenation, in hydro-conversion heavy charge, while obtaining high yield of light oil, due to slurry bubble bed slag
Feed metal, the carbon residue of oil hydrogenation are higher, are just particularly important the problem of suppression coking under high conversion, device is once
On-stream time certainly will be shortened by green coke problem occur, cause hydrogenation reactor blocking etc..Therefore it is that slurry bubble bed residual oil adds to suppress green coke
The emphasis of hydrogen work technique, in the case where green coke amount reduces, the economy of plant running could be improved, specifically, rise burnt amount
Reduce, by increasing capacitance it is possible to increase cut oil yield, while the abrasion and blocking of equipment are reduced, increase the service cycle of device, at the same time,
The operating cost of device, including hydrogen consumption, agent consumption and corresponding energy consumption are reduced, reduces the overall investment cost of device.Suppress life
One of burnt approach is exactly to use the catalyst with high activity, high dispersive to strengthen hydrogenation in hydrogenation process, passes through high activity height
The reinforcing hydrogenation of dispersed catalyst, promotes asphaltene in vacuum residues to be converted into polycyclic aromatic hydrocarbon, the further hydro-conversion of polycyclic aromatic hydrocarbon
For light component.Therefore, develop that high metal content, the molten stability of oil is good, has the oil-soluble for preferably pressing down burnt performance in course of reaction
Molybdate compound as catalyst precarsor can further improve heavy inferior resid hydrocracking process operating flexibility and
Economy.
The existing organic matter containing molybdenum is mainly used in lubricating area, but the organic matter containing molybdenum developed is deposited mostly
Oil-soluble it is poor, due to the compounds such as sulphur phosphorus exist caused by etching problem and environmental issue.CN101165141A discloses one
It the preparation technology of kind coal liquifaction catalyst molybdenum naphthenate, can occasionally be produced under conditions of relatively relaxing, but use the technique system
Standby molybdenum naphthenate content is relatively low, and the addition of molybdenum naphthenate during the course of the reaction is higher.CN92102723A discloses one kind
The preparation technology of molybdenum naphthenate and its Mo-S antiwear additive, the technique are that aphthenic acids reacts to form sodium naphthenate molten with sodium hydroxide
Liquid, molybdenum trioxide and sodium hydroxide are reacted to form sodium molybdate, then by sodium molybdate and sodium naphthenate water, petroleum ether, benzene work
Stirred with lower dilution, during salt acid for adjusting pH value be added dropwise post-process to obtain molybdenum naphthenate, using big in the preparation process
The alkali lye of amount and acid, it is impossible to meet increasingly harsh energy-conserving and environment-protective requirement.
CN104228289A discloses a kind of preparation for the catalyst based on molybdenum for being used for hydrotreating or hydrocracking process
Method.The catalyst by least one based on molybdenum (Mo), for monomer or dimeric forms, there is at least one Mo=O or Mo-
The mononuclear precursors of OR keys or at least one Mo=S or Mo-SR keys and optionally it is made up of at least one group VIII element accelerator.
Then by the precursor deposition to being adapted on the oxide carrier of its technique used, but the precursor contains element sulphur, and mainly
For fixed bed hydrogenation, slurry bubble bed hydrogenation technique is not suitable for.
In the combination property of the catalyst formed there are some researches show, different metal, metal molybdenum has higher activity, because
This effectively utilize excellent properties of the molybdenum element in hydrogenation process, and exploitation has more preferably oil-soluble, tenor height, in residual oil plus
During hydrogen while hydrogenation activity is ensured, with preferably press down burnt performance without organic matter of the sulphur phosphorus containing molybdenum with very heavy
The meaning wanted.
The content of the invention
One of technical problems to be solved of the present invention are to provide a kind of organic-molybdenum salt composite, the organic-molybdenum salt composite
With good oil-soluble, face after presulfurization in heavy oil in hydrogen thermal conversion processes and show excellent suppression Jiao's performance.This hair
The two of bright technical problems to be solved are to provide a kind of preparation method for preparing above-mentioned organic-molybdenum salt composite.
A kind of organic-molybdenum salt composite, containing molybdenum ion, and the C1~C16 organic anions combined with molybdenum ion, have
Contain oxygen atom in machine anion, wherein, the valence distribution of molybdenum is+trivalent molybdenum ion in molybdenum ion：+ 4 valency molybdenum ions：+ 5 valency molybdenums
The mol ratio of ion is (0.1~20.0)：(15.0~45.0)：(40.0~75.0).
The preparation method of above-mentioned organic-molybdenum salt composite, comprises the following steps：
(1) sexavalence molybdenum source compound and solvent dissolving are scattered, add the catalytic action of inorganic acid, inorganic acid catalyst and six
The mass ratio of valency molybdenum source is (0.05~0.2):1, C1~C5 organic acids are added at 40~150 DEG C of temperature, described solvent is
Benzene, toluene, water, ethanol or petroleum ether；
(2) solvent phase is removed after reacting, obtains intermediate product；
(3) by intermediate product and C6~C16 organic acids or C6~C16 ester hybrid reactions；
(4) mixing terminate after, by mixture temperature be 50~350 DEG C, react under the conditions of reducing atmosphere, then subtract
Product, which is collected, after pressure distillation obtains organic-molybdenum salt composite.
Organic-molybdenum salt composite provided by the invention has the beneficial effect that：
Organic-molybdenum salt tenor provided by the invention is high, and dissolubility is good in oil phase, available for slurry bubble bed residual hydrogenation
It is stable as catalyst precursors, course of reaction high conversion rate, product characteristicses, without filtration step.Nanometer is generated after presulfurization
The catalyst of level is evenly dispersed in residual oil, and catalyst mainly exists with the single layer structure of high degree of dispersion, this Monolayer Dispersion
Structure maintains very high hydrogenation activity in whole hydrogenation process, can effectively prevent free radical in conjunction with further generation
Coke, hydrogenation reaction activity is greatly increased, while the organic matter is anti-in hydrogenation as the catalyst that catalyst precarsor is formed
There is the ability of excellent suppression reaction green coke during answering.Oil-soluble organic molybdenum salt composite provided by the invention can also be made
For lube oil additive, there is antifriction, wear-resistant.
The preparation method of organic-molybdenum salt composite provided by the invention has the beneficial effect that：
Organic-molybdenum salt composite synthesis cost provided by the invention is low, production line environmental protection, without special dirt in production process
Contaminate thing discharge.
Embodiment
The embodiment of detailed description below organic-molybdenum salt provided by the invention and preparation method thereof.
A kind of organic-molybdenum salt composite provided by the invention, containing molybdenum ion, and the C1~C16 combined with molybdenum ion has
Machine anion, contain oxygen atom in organic anion, wherein, the valence distribution of molybdenum is+trivalent molybdenum ion in molybdenum ion：+ 4 valency molybdenums
Ion：The mol ratio of+5 valency molybdenum ions is (0.1~20.0)：(15.0~45.0)：(40.0~75.0).
The preparation method of above-mentioned organic-molybdenum salt composite, comprises the following steps：
(1) sexavalence molybdenum source compound and solvent dissolving are scattered, add the catalytic action of inorganic acid, inorganic acid catalyst and six
The mass ratio of valency molybdenum source is (0.05~0.2):1, C1~C5 organic acids are added at 40~150 DEG C of temperature, described solvent is
Benzene, toluene, water, ethanol or petroleum ether；
(2) solvent phase is removed after reacting, obtains intermediate product；
(3) by intermediate product and C6~C16 organic acids or C6~C16 ester hybrid reactions；
(4) mixing terminate after, by mixture temperature be 50~350 DEG C, react under the conditions of reducing atmosphere, then subtract
Product, which is collected, after pressure distillation obtains organic-molybdenum salt composite.
The preparation method of organic-molybdenum salt composite provided by the invention, it is preferable that solvent and sexavalence molybdenum source in step (1)
The mass ratio of compound is (2~30)：1, C1~C5 organic acids and the mol ratio of sexavalence molybdenum source compound are (0.5~6)：1；Step
(3) C6~C16 organic acids or C6~C16 esters and the mol ratio of sexavalence molybdenum source are (1~12) in：1.
The present invention is provided in the preparation method of organic-molybdenum salt, C1~C5 organic acids described in the step (1) be selected from formic acid,
It is one or more of in acetic acid, propionic acid, 2-Methyl Butyric Acid, isobutyric acid, valeric acid, ethanedioic acid, malonic acid, succinic acid and glutaric acid
Mixture；C6~C16 organic acids described in step (3) be selected from caproic acid, enanthic acid, 2- propylheptanoic acids, octanoic acid, 2 ethyl hexanoic acid,
One in n-nonanoic acid, 2- phenylpropionic acids, phenylacetic acid, benzoic acid, phthalic acid, M-phthalic acid, terephthalic acid (TPA) and adipic acid
Kind is a variety of.C6~C16 esters described in step (2) are selected from butyl acetate, methyl caprylate, amyl acetate, amyl valerate, butyric acid
One or more in ethyl ester, isoamyl acetate, cognac oil, methyl valerate, amyl caproate, ethyl caprilate and ethyl valerate.
The present invention provide organic-molybdenum salt preparation method in, the sexavalence molybdenum source be selected from molybdic acid, ammonium molybdate, ammonium paramolybdate and
One or more in molybdenum trioxide.
The present invention provide organic-molybdenum salt preparation method in, add solvent be used as accelerator, described solvent selected from toluene,
One or more in dimethylbenzene, petroleum ether, water.Preferably, the step (1), (2) are carried out under inert gas shielding, more
It is preferred that carry out under nitrogen protection.Preferably, described step (3) is carried out under reducing gas protection, more preferably in hydrogen gas
Body protection is lower to be carried out.
Specifically, solvent is equal to (2~30) with sexavalence molybdenum source compound according to mass ratio in step (1):1 dissolving is scattered,
Inorganic acid catalyst is added, described inorganic acid is sulfuric acid, nitric acid or hydrochloric acid, and wherein inorganic acid and the mass ratio of sexavalence molybdenum source is
(0.05~0.2):1, C1~C5 organic acid reactions are added at 40~150 DEG C of temperature 0.5~10 hour, described C1~C5 has
Machine acid and the mol ratio of sexavalence molybdenum source are (0.5~6):1；
Step (2) is to remove solvent phase after step (1) is reacted, and obtains intermediate product；
Step (3) is (1~12) according to C6~C16 organic acids or C6~C16 esters and sexavalence molybdenum source mol ratio:1, by C6~
C16 organic acids or C6~C16 esters, which are added in the intermediate product of step (2), to be mixed, and mixing temperature is 30~120 DEG C, during mixing
Between 3~90 minutes.
Step (4) be step (3) mixing terminate after, by mixture temperature be 50~350 DEG C, in reducing atmosphere bar
Under part, reacted 2~22 hours in 0.1~2MPa of reaction pressure and obtain reaction product.Then product is collected after being evaporated under reduced pressure to obtain
Organic-molybdenum salt composite.
It is described prepare to add in reaction promote to react complete accelerator, the accelerator be selected from water, ether, petroleum ether,
One or more in benzene, toluene, chloroform.Above-mentioned accelerator can promote reaction to carry out as reaction dissolvent, the solvent of addition
After the completion of reaction, using well known to a person skilled in the art mode, such as it can be removed under normal pressure or reduced pressure.
The organic-molybdenum salt composite that method provided by the invention is prepared is oil-soluble organic molybdenum salt, containing molybdenum ion,
And C1~C16 the organic anions combined with molybdenum ion, contain oxygen atom in organic anion, wherein, molybdenum in molybdenum ion
Valence distribution is+trivalent molybdenum ion：+ 4 valency molybdenum ions：The mol ratio of+5 valency molybdenum ions is (0.1~20.0)：(15.0~45.0)：
(40.0~75.0).
The preparation method of organic-molybdenum salt composite provided by the invention is simple, and product oil-soluble is good, and tenor is high, reaction
Process high conversion rate, without filtration step.Organic synthesis cost provided by the invention containing molybdenum is relatively low, production technology environmental protection,
Discharged without specific pollutant.Using the organic-molybdenum salt as the catalyst precursor being hydrocracked, residual hydrogenation is carried out after presulfurization
With prominent suppression Jiao's performance, during slurry bubble bed residual hydrogenation, the catalyst precursor adds people's amount few therefore reacted
It is less containing solid powder in unconverted tail oil, it can also be called in directly as the charging of coking plant in pitch, or pass through
The mode of recovery dead catalyst reclaims metal molybdenum therein.
The following examples will be further described to method provided by the invention, but therefore not make the present invention
It is any way limited.The equal Chemical Reagent Co., Ltd., Sinopharm Group's product of each raw material used in embodiment.
Embodiment 1
Molybdenum trioxide is equal to 1 with toluene according to mass ratio：24 disperse in flask, inert gas purge, in temperature 60 C
Lower addition succinic acid reacts 6 hours, and the dosage of succinic acid and the mol ratio of molybdenum trioxide are 1：3；After reaction terminates, separate molten
Agent, obtain intermediate product.It is 1 according to molybdenum trioxide and enanthic acid mol ratio:6 mixing, 60 DEG C of mixing temperature, incorporation time 30 is divided
Clock.After mixing, in the case where temperature is 280 DEG C of conditions, hydrogen atmospheres, reaction pressure 0.2MPa, react 10 hours, reaction terminates
Obtain product.The dissolubility of products therefrom is shown in Table 1.Metal content analysis is carried out to product, the analysis method used is inductance coupling
Close plasma emission spectrometry (GB/T 17476).Metal state analysis uses X-ray photoelectron spectroscopic analysis after sample treatment.
Analysis result, molybdenum content is 14.7wt% in product, wherein+trivalent molybdenum ion：+ 4 valency molybdenum ions：The mol ratio of+5 valency molybdenum ions
For 15:24:61.
Embodiment 2
Molybdenum trioxide is equal to 1 with toluene according to mass ratio：15 disperse in flask, inert gas purge, in 80 DEG C of temperature
Lower addition formic acid reacts 6 hours, and the dosage of formic acid and the mol ratio of molybdenum trioxide are 1：5；After reaction terminates, solvent is separated, is obtained
To intermediate product.It is 1 according to molybdenum trioxide and caprylic acid mol ratio:4 mixing, 80 DEG C of mixing temperature, incorporation time 40 minutes.It is mixed
After conjunction, in the case where temperature is 200 DEG C of conditions, hydrogen atmospheres, reaction pressure 1MPa, in 15 hours reaction time, reaction terminates
To product.The dissolubility of products therefrom is shown in Table 1.Metal content analysis is carried out to product, the analysis method used is inductive
Plasma emission spectrometry (GB/T 17476).Metal state analysis uses X-ray photoelectron spectroscopic analysis after sample treatment.Point
Result is analysed, molybdenum content is 15.8wt% in product, wherein+trivalent molybdenum ion：+ 4 valency molybdenum ions：The mol ratio of+5 valency molybdenum ions is
13:42:45。
Comparative example 1
Molybdenum trioxide is equal to 1 with toluene according to mass ratio：15 disperse in flask, inert gas purge, in 80 DEG C of temperature
Lower addition formic acid reacts 6 hours, and the dosage of formic acid and the mol ratio of molybdenum trioxide are 1：5；After reaction terminates, according to molybdenum trioxide
It is 1 with caprylic acid mol ratio:4 add caprylic acid, add 20 minutes time, are 200 DEG C of bars in temperature after caprylic acid adds
Reacted 15 hours under part；Product is separated, removes solvent phase, washes oil phase, is evaporated under reduced pressure and collects product.Products therefrom
Dissolubility is shown in Table 1.Metal content analysis is carried out to product, the analysis method used is inductive coupling plasma emission spectrum method
(GB/T 17476).Metal state analysis uses X-ray photoelectron spectroscopic analysis after sample treatment.Analysis result, molybdenum in product
Content is 3.7wt%, wherein+5 valency molybdenum ions：The mol ratio of+6 valency molybdenum ions is 8:92.
Embodiment 3
The residual oil property used in embodiment is shown in Table 2.350g residual oil is weighed, then adds in 180 μ g/g embodiment 1 and makes
Standby organic-molybdenum salt composite, said composition is added in residual oil, adds 0.30g sulphur powders, in 420 DEG C of reaction temperature, instead
Pressure 20MPa is answered, hydrogenation reaction is carried out under reaction time 6h, reacted product determines crude oil boiling range point by gas chromatography
Product distribution is shown in Table 3 after standard test method (analysis method ASTM D5307) the measure reaction of cloth.
Embodiment 4
The residual oil used in embodiment is the same as embodiment 3.350g residual oil is weighed, the heavy oil containing molybdenum for then adding 180 μ g/g adds
Hydrogen Cracking catalyst (wherein molybdenum content is 15.8%), the organic matter is added in residual oil, 0.30g sulphur powders are added, anti-
420 DEG C, reaction pressure 20MPa of temperature is answered, 6 hours reaction time carried out hydrogenation reaction, and reacted product passes through gas-chromatography
Product distribution is shown in Table 3 after standard test method (analysis method ASTM D5307) the measure reaction of method measure crude oil boiling Range Distribution Analysis.
Comparative example 2
The residual oil raw material used in comparative example 2 is the same as embodiment 3.Reaction condition with embodiment 4, then adds 180 μ g/g
The catalyst of hydrocracking heavy oil containing molybdenum (in organic matter molybdenum content be 3.7%) for preparing of comparative example 1, reacted product passes through
Product point after standard test method (analysis method ASTM D5307) the measure reaction of gas chromatography measure crude oil boiling Range Distribution Analysis
Cloth is shown in Table 3.
Table 1
| Example | Mass fraction/% of product molybdenum | Concentration in diesel oil | Dissolubility | Outward appearance |
| Embodiment 1 | 14.7 | 2% | It is completely dissolved | Fulvescent solution |
| Embodiment 2 | 15.8 | 10% | It is completely dissolved | Fulvescent solution |
| Comparative example 1 | 3.7 | 10% | Most of dissolving | Dark brown solution |
The residual oil property of table 2
| Raw material | Residual oil |
| C content, wt% | 86.36 |
| H content, wt% | 9.01 |
| NH/NC | 1.25 |
| S contents, wt% | 2.99 |
| N content, wt% | 0.68 |
| Carbon residue, wt% | 36 |
| Ni contents, μ gg-1 | 55.8 |
| V content, μ gg-1 | 268 |
| 500+DEG C ends content, wt% | 89 |
| Four components, wt% | |
| Saturation point, wt% | 16.5 |
| Fragrance point, wt% | 31.6 |
| Colloid, wt% | 24 |
| Asphalitine, wt% | 27.9 |
Product characteristicses after the hydrogenation reaction of table 3
| Numbering | Embodiment 3 | Embodiment 4 | Comparative example 2 |
| Gas, wt% | 6.98 | 7.32 | 9.57 |
| Gasoline (180 DEG C of ＜), wt% | 19.29 | 20.48 | 12.35 |
| Diesel oil (180~350 DEG C), wt% | 26.46 | 25.53 | 20.66 |
| Wax oil (350~524 DEG C), wt% | 30.38 | 33.17 | 28.49 |
| Subtract slag (524 DEG C of ＞), wt% | 15.72 | 12.50 | 25.68 |
| Toluene insolubles, wt% | 1.17 | 1.00 | 3.25 |
From embodiment and table 3, organic-molybdenum salt tenor provided by the invention is high, and oil-soluble is good, is used after presulfurization
It is high in inferior heavy oil hydrocracking reaction high conversion rate, light oil yield.In product distribution, yield of gasoline improves 6.94~8.13
Percentage point, diesel yield improve 4.87~5.8 percentage points, and toluene insolubles reduces by 2.08~2.25 percentage points.
Claims (10)
1. a kind of organic-molybdenum salt composite, it is characterised in that organic containing molybdenum ion, and with C1~C16 of molybdenum ion combination
Anion, contain oxygen atom in described organic anion, wherein, the valence distribution of molybdenum is+trivalent molybdenum ion in molybdenum ion：+4
Valency molybdenum ion：The mol ratio of+5 valency molybdenum ions is (0.1~20.0)：(15.0~45.0)：(40.0~75.0).
2. the preparation method of the organic-molybdenum salt composite of claim 1, it is characterised in that comprise the following steps：
(1) sexavalence molybdenum source compound and solvent dissolving are scattered, add the catalytic action of inorganic acid, inorganic acid catalyst and sexavalence molybdenum
The mass ratio of source compound is (0.05~0.2):1, C1~C5 organic acid reactions are added at 40~150 DEG C of temperature, it is described
Solvent is benzene, toluene, water, ethanol or petroleum ether；
(2) solvent phase is removed after reacting, obtains intermediate product；
(3) by intermediate product and C6~C16 organic acids or C6~C16 ester hybrid reactions；
(4) reaction terminate after, by mixture temperature be 50~350 DEG C, reacted under the conditions of reducing atmosphere, then decompression steam
Product is collected after evaporating and obtains organic-molybdenum salt.
3. according to the preparation method of the organic-molybdenum salt composite described in claim 2, it is characterised in that in step (1) solvent with
The mass ratio of sexavalence molybdenum source compound is (2~30)：The mol ratio of 1, C1~C5 organic acids and sexavalence molybdenum source compound is (0.5
~6)：1；C6~C16 organic acids or C6~C16 esters and the mol ratio of sexavalence molybdenum source are (1~12) in step (3)：1.
4. according to the preparation method of the organic-molybdenum salt composite described in claim 3, it is characterised in that described in step (1)
C1~C5 organic acids be selected from formic acid, acetic acid, propionic acid, 2-Methyl Butyric Acid, isobutyric acid, valeric acid, ethanedioic acid, malonic acid, succinic acid and
One or more of mixtures in glutaric acid；Described inorganic acid is selected from sulfuric acid, nitric acid or hydrochloric acid；Described in step (2)
C6~C16 organic acids be selected from caproic acid, enanthic acid, 2- propylheptanoic acids, octanoic acid, 2 ethyl hexanoic acid, n-nonanoic acid, 2- phenylpropionic acids, phenylacetic acid,
One or more of mixtures in benzoic acid, phthalic acid, M-phthalic acid, terephthalic acid (TPA) and adipic acid；Described
C6~C16 esters are selected from butyl acetate, methyl caprylate, amyl acetate, amyl valerate, ethyl butyrate, isoamyl acetate, enanthic acid second
One or more of mixtures in ester, methyl valerate, amyl caproate, ethyl caprilate and ethyl valerate.
5. according to the preparation method of the organic-molybdenum salt composite described in claim 2, it is characterised in that the sexavalence molybdenum source chemical combination
One or more of the thing in molybdic acid, ammonium molybdate, ammonium paramolybdate and molybdenum trioxide.
6. according to the preparation method of the organic-molybdenum salt composite described in claim 2, it is characterised in that add and promote in step (3)
Enter agent, one or more of the described accelerator in toluene, dimethylbenzene, petroleum ether, water.
7. according to the preparation method of the organic-molybdenum salt composite described in claim 2, it is characterised in that step (1)~(3)
Carried out under inert gas shielding.
8. according to the preparation method of the organic-molybdenum salt composite described in claim 2, it is characterised in that going back described in step (4)
Originality atmosphere is hydrogen atmosphere.
9. according to the preparation method of the organic-molybdenum salt composite described in claim 2, it is characterised in that sexavalence molybdenum in step (1)
Source compound and C1~C5 organic acids react 0.5~10 hour at 40~150 DEG C of temperature.
10. according to the preparation method of the organic-molybdenum salt composite described in claim 2, it is characterised in that described in step (4)
Mixture under reducing atmosphere, reacts 2~22 hours under 50~350 DEG C of temperature, 0.1~2MPa of pressure.
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| CN112742476A (en) * | 2019-10-29 | 2021-05-04 | 中国石油化工股份有限公司 | Catalyst, preparation method thereof and method for producing low-sulfur petroleum coke |
| CN112745352A (en) * | 2019-10-30 | 2021-05-04 | 中国石油化工股份有限公司 | Organic molybdenum compound, preparation method thereof, catalyst and application thereof |
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