CN104475148B - Coal-oil hydrogenation co-processing catalyst as well as preparation method and application method thereof - Google Patents

Coal-oil hydrogenation co-processing catalyst as well as preparation method and application method thereof Download PDF

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CN104475148B
CN104475148B CN201410775438.7A CN201410775438A CN104475148B CN 104475148 B CN104475148 B CN 104475148B CN 201410775438 A CN201410775438 A CN 201410775438A CN 104475148 B CN104475148 B CN 104475148B
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coal
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nickel
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CN104475148A (en
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项文裕
项裕桥
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Ningbo Antai Environmental Chemical Engineering Design Co ltd
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Ningbo Research & Design Institute Of Chemical Industry
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Abstract

The invention relates to a coal-oil hydrogenation co-processing catalyst as well as a preparation method and an application method thereof. The catalyst consists of a carrier, an active component and an additive, wherein the specific surface area of the carrier is 300 to 600 m<2>/g, the pore volume of the carrier is 0.5 to 1.0 cm<3>/g, the carrier is one or more of gamma zeolite, beta zeolite, ZSM-5 and KIT-6 powder with the particle size less than 200 micrometers, the active component is iron and nickel, and the additive is one or more of zinc chloride and tin chloride. The preparation method comprises the following steps of preparing the carrier, preparing the active component and preparing the additive. According to the application method of the catalyst, the catalyst and raw material coal powder are mixed and then added into a high pressure reaction kettle together with heavy oil, the addition amount of the catalyst is 0.5 to 5 parts by weight of the total mass of the coal and heavy oil, and the mass ratio of the coal to the oil is 1: 1. The catalyst is large in specific surface area, reasonable in preparation process, little in consumption, high in oil yield after the coal-oil hydrogenation co-processing and safe and convenient to use.

Description

Kerosene hydrogenation refines altogether catalyst and its preparation method and application method
Technical field
The present invention relates to coalification industrial technical field, especially a kind of kerosene hydrogenation refine altogether catalyst and preparation method thereof and Application process.
Background technology
In recent years, the development with science and technology and economic rapid growth, society is increasing to the dependence of oil product.But It is that world today's petroleum resources worsening shortages, the heaviness and in poor quality problem of petroleum resources is more and more obvious, and urgent need will be found The energy and exploitation efficient utilization oil new technology of petroleum replacing.Heavy oil deep process technology not only can be provided with effectively utilizes oil Source, and the economic benefit of oil-processing enterprises can be improved.China is the country of rich coal oil starvation, how by rich reserves and Cheap coal resources change into fluid product becomes an important development direction of coal resources clean utilization, this Under situation, coal liquefaction, kerosene hydrogenation are refined altogether etc., and technology is arisen at the historic moment.
It is process the common hydrocracking under catalyst action of coal and heavy oil that kerosene hydrogenation is refined altogether.Due to coal and heavy oil Between the interaction of a kind of promotion heavy oil modification and coal liquefaction collaboration is presented, coal-heavy-oil hydrogenation refines altogether more independent than coal or heavy oil Plus man-hour liquid is received and improved, hydrogen consumption is reduced.Meanwhile, coal also promotes the removing of metallic element in heavy oil, adds content of beary metal height, hardly possible The heavy oil of work is obtained by.
Catalyst is that kerosene hydrogenation refines altogether one of core technology of process, for reaction severity is reduced, improves reaction effect Rate, so as to reduce kerosene hydrogenation this is smelt altogether, and improving its economic competitiveness has very important effect.Fe-series catalyst due to Wide material sources, it is cheap, can single use and do not reclaim, with liquefied residue discharge, additional effect is not constituted to environment, Become the focus of current research.
Patent publication No. is that CN102311750B is entitled《A kind of oily coal with ferrous acetate as catalyst precursor is refined altogether Method》Chinese invention patent application disclose a kind of oily coal with ferrous acetate as catalyst precursor altogether smelting method, second Sour ferrous saturated solution adds coal dust, infiltrated, dry that liquefaction coal sample is obtained after stirring.Coal sample, refining altogether after process Oil, auxiliary agent be beaten together, then hydrogenation pressurized conditions under reacted, isolated product.The complex catalyst precursor of the invention Body carrying method is simple, is not required to precipitate, filters and pre-sulfiding step, and catalyst precursor consumption is few, and product oil yield is higher.But Product oil yield need further raising.Patent publication No. is that CN102309972B is entitled《A kind of oily coal hydrogenation is refined altogether urges Agent and its common smelting method》Chinese invention patent application disclose a kind of oily coal hydrogenation and refine catalyst and its common smelting method altogether. The catalyst is made up of major catalyst, secondary catalyst and auxiliary agent.The presoma of major catalyst be water miscible molysite, secondary catalyst Presoma be water-soluble and/or oil-soluble molybdenum salt, the mol ratio of Fe and Mo is 50: 1-200: 1;Described auxiliary agent is sulphur Powder or sulfur-containing compound.The catalyst that the invention is provided is using the obtained catalysis of method of pre-dispersed, solidification, decomposition in situ Agent, with particle size is little, consumption is few, is uniformly dispersed, the advantage that activity is high and product oil yield is high in system.But catalyst Molybdenum is not easily recycled, and product oil yield need further raising.
The content of the invention
First technical problem to be solved by this invention is to provide a kind of kerosene hydrogenation for above-mentioned state of the art The altogether catalyst of refining, the catalyst carrier has that specific surface area is big, catalyst activity component is evenly distributed, and consumption is few, catalyst Auxiliary agent is conducive to coal liquefaction, promotes kerosene hydrogenation to refine altogether.
The technical scheme that first technical problem to be solved by this invention is adopted for:This kerosene hydrogenation refines altogether catalyst, The formula of the catalyst is made up of carrier, active component and auxiliary agent, it is characterised in that:The specific surface area of the carrier is 300 ~600m2/ g, pore volume is 0.5~1.0cm3/ g, the carrier be particle diameter less than 200 microns γ zeolites, β zeolites, ZSM-5, One or more in KIT-6 powder, the active component is iron and nickel, and the auxiliary agent is the one kind in zinc chloride, stannic chloride Or it is various, it is above-mentioned for mass parts.
As improvement, 80~95 parts containing catalyst gross mass of the carrier, the active component gross mass containing catalyst 5~15 parts, the auxiliary agent is containing 1~5 part of catalyst gross mass.
Used as improvement, 5~10 parts containing catalyst gross mass of ferro element in the active component, nickel element is total containing catalyst 1~5 part of quality, it is above-mentioned for mass parts.
Second technical problem to be solved by this invention is to provide a kind of rational technology for above-mentioned state of the art, Catalyst amount is few, and the high kerosene hydrogenation of oil productivity refines altogether the preparation method of catalyst after kerosene hydrogenation is refined altogether.
The technical scheme that second technical problem to be solved by this invention is adopted for:The preparation method of above-mentioned catalyst, It is characterized in that:By following steps:
First, by the formula of carrier, carrier is added in the weakly acidic solution of the Containing Zinc Chloride of amount of calculation or stannic chloride, Wash after stirring 1~4 hour in 30~90 DEG C, then by the carrier after washing, drying 1~6 is little in 80~150 DEG C of temperature When, that is, carrier is obtained;
2nd, by molysite and the formula of nickel salt, molysite and nickel salt are mixedly configured into into the aqueous solution, carrier prepared by step one Impregnate in the aqueous solution of the molysite that temperature is 30~90 DEG C with nickel salt 1~8 hour, then filter in the carrier after dipping, then To add weakly alkaline solution in carrier after filtration, stir 1~4 hour, it is then placed in being dried in 80~150 DEG C of temperature 4~ 18 hours, that is, make containing active component;
3rd, catalyst obtained in step 2 is carried out into sulfuration 1~4 hour under 100~300 DEG C of vulcanizing agent effects of temperature, Obtain the finished catalyst with hydrogenation activity.
Used as improvement, the weakly acidic solution of the Containing Zinc Chloride or stannic chloride is preferably containing zinc chloride or stannic chloride One or more in acetic acid, carbonic acid, hydrosulphuric acid solution, the pH value of the weakly acidic solution is preferably 5~7.
Used as improvement, described molysite may be selected to be in iron chloride, frerrous chloride, ferric sulfate, ferric nitrate, ferrous acetate One or more, one or more in the nickel salt nickel nitrate, nickel sulfate, nickel acetate.
Used as improvement, the weakly alkaline solution may be selected to be sodium carbonate, sodium acid carbonate, sodium acetate, sodium citrate aqueous solution In one or more, the pH value of the weakly alkaline solution is 8~10..
Used as improvement, the vulcanizing agent may be selected to be one kind in carbon disulfide, DMDS, dimethyl sulfide or many Kind.
Improve again, in the step one, it is little that the carrier after washing is dried 1~6 in the baking oven that temperature is 80~150 DEG C When, in the step 2, the carrier after stirring 1~4 hour is placed in the baking oven that temperature is 80~150 DEG C and is dried 4~18 hours, Make the catalyst containing active component.
3rd technical problem to be solved by this invention be provide for above-mentioned state of the art it is a kind of it is simple to operate, Prepare the application process of the catalyst of safety.
The technical scheme that 3rd technical problem to be solved by this invention is adopted for:The application process of above-mentioned catalyst, It is characterized in that:The catalyst adds autoclave, the feed coal together with heavy oil after being well mixed with raw material coal dust Powder is one or more in brown coal, jet coal, bottle coal, gas-rich coal, and the heavy oil is reduced crude, decompression residuum, tar drip One or more in green grass or young crops, the addition of the catalyst is 0.5~5 part of coal and oily gross mass, the quality of the coal and oil It is above-mentioned for mass parts than for 1: 1.
Compared with prior art, the advantage of catalyst of the present invention is:Carrier selects molecular sieve, and specific surface area is big, acidity It is moderate, made by catalyst not only there is good hydrogenation cracking activity, and the easily separated recovery of catalyst;Selection of auxiliary chlorination Zinc or stannic chloride, have using lique faction of coal is promoted, and improve the production rate of coal liquifaction;Active component selects the compound of iron and nickel, Hydrogenation cracking activity is high, and consumption is few, and there is the catalyst excellent kerosene hydrogenation to refine the performance for generating light oil altogether.The present invention is urged The preparation method of agent is first auxiliary agent zinc chloride or stannic chloride to be immersed on molecular sieve carrier under mildly acidic conditions, scrubbed The presoma of active component iron and nickel is impregnated after drying, and iron and nickel are fixed on carrier with weakly alkaline solution, after drying Obtain the catalyst containing active component, most after the finished catalyst with hydrogenation cracking activity is obtained Jing after vulcanizing treatment.Should Method not only rational technology, and obtained catalyst activity is high, and consumption is few, and product oil yield is high after kerosene hydrogenation is refined altogether.This Invention also provides a kind of application process simple to operate, catalyst that is preparing safety.
Specific embodiment
The present invention is described in further detail below;
The kerosene hydrogenation of the present embodiment refines altogether catalyst, and the formula of the catalyst is by carrier, active component and auxiliary agent group Into the specific surface area of the carrier is 300~600m2/ g, pore volume is 0.5~1.0cm3/ g, the carrier is that particle diameter is less than 200 One or more in γ zeolites, β zeolites, ZSM-5, KIT-6 powder of micron, the active component is iron and nickel, described to help Agent is one or more in zinc chloride, stannic chloride, and the carrier contains 80~95 parts of catalyst gross mass, the active component Containing catalyst gross mass 5~15 parts, 1~5 part containing catalyst gross mass of the auxiliary agent, ferro element contains in the active component 5~10 parts of catalyst gross mass, 1~5 part containing catalyst gross mass of nickel element is above-mentioned for mass parts.The ratio of the carrier Surface area refers to the surface area that unit mass carrier has, and the pore volume refers to that the pore that unit mass carrier has always holds Product, the Y zeolites refer to a kind of Si-Al zeolite with three-dimensional supercage structure, cubic system, and the β zeolites refer to that one kind has The silica-rich zeolite of three-dimensional twelve-ring pore structure, it is structurally characterized in that two four-membered rings and four pentacyclic pair of hexatomic ring units Bug hole structure, the ZSM-5 powder refers to that a kind of composition is complicated and has the shape-selective zeolite molecular sieve of special crystalline form, is this technology The known technology in field, it is industrial to be just this name.KIT-6 powder refers to a kind of porous silica material with nanostructured, Also it is the known technology of the art, it is industrial to be just this name.
The preparation method of above-mentioned catalyst, by following steps:
First, by the formula of carrier, carrier is added in the weakly acidic solution of the Containing Zinc Chloride of amount of calculation or stannic chloride, Wash after stirring 1~4 hour in 30~90 DEG C, then by the carrier after washing, drying 1~6 is little in 80~150 DEG C of temperature When, that is, carrier is obtained;
2nd, by molysite and the formula of nickel salt, molysite and nickel salt are mixedly configured into into the aqueous solution, carrier prepared by step one Impregnate in the aqueous solution of the molysite that temperature is 30~90 DEG C with nickel salt 1~8 hour, then filter in the carrier after dipping, then To add weakly alkaline solution in carrier after filtration, stir 1~4 hour, it is then placed in being dried in 80~150 DEG C of temperature 4~ 18 hours, that is, make the catalyst containing active component;
3rd, catalyst obtained in step 2 is carried out into sulfuration 1~4 hour under 100~300 DEG C of vulcanizing agent effects of temperature, Obtain the finished catalyst with hydrogenation activity.The weakly acidic solution of the Containing Zinc Chloride or stannic chloride be containing zinc chloride or One or more in acetic acid, carbonic acid, the hydrosulphuric acid solution of stannic chloride, the pH value of the weakly acidic solution is 5~7.Described Molysite is one or more in iron chloride, frerrous chloride, ferric sulfate, ferric nitrate, ferrous acetate, the nickel salt nickel nitrate, sulphur One or more in sour nickel, nickel acetate.The weakly alkaline solution is that sodium carbonate, sodium acid carbonate, sodium acetate, sodium citrate are water-soluble One or more in liquid, the pH value of the weakly alkaline solution is 8~10.The vulcanizing agent be carbon disulfide, DMDS, One or more in dimethyl sulfide, in the step one, the carrier after washing is done in the baking oven that temperature is 80~150 DEG C Dry 1~6 hour, in the step 2, the carrier after stirring 1~4 hour was placed in the baking oven that temperature is 80~150 DEG C and is dried 4 ~18 hours, that is, make the catalyst containing active component.
The application process of above-mentioned catalyst, the catalyst adds high pressure after being well mixed with raw material coal dust together with heavy oil Reactor, the raw material coal dust is one or more in brown coal, jet coal, bottle coal, gas-rich coal, and the heavy oil is normal pressure slag One or more in oil, decompression residuum, tar asphalt, the addition of the catalyst is the 0.5~5 of coal and oily gross mass Part, the mass ratio of the coal and heavy oil is 1: 1, above-mentioned for mass parts.
The present invention is described in further detail with reference to embodiments.
Below in an example, catalyst C1~C4 is to refine catalyst altogether using the kerosene hydrogenation obtained by the present invention. Embodiment 1~4 is the preparation of hydrocracking catalyst of the present invention, and embodiment 5 refines altogether performance evaluation for the kerosene hydrogenation of catalyst.
Embodiment 1
Amount of calculation γ zeolite is taken, (pH is 6.0) is added in the acetum of the Containing Zinc Chloride of amount of calculation, is stirred in 60 DEG C Wash after mixing 2 hours, be put in 120 DEG C of baking ovens and be dried 2 hours, obtain the carrier containing auxiliary agent.
The iron chloride and nickel sulfate of amount of calculation are taken, the aqueous solution is mixedly configured into, by the carrier containing auxiliary agent of above-mentioned preparation, Temperature is to impregnate 4 hours in 80 DEG C of iron chloride and the aqueous solution of nickel sulfate, adds a small amount of sodium carbonate liquor after filtration in carrier (pH is 10.0), stirs 2 hours, is then placed in being dried 8 hours in 150 DEG C of baking ovens, that is, make the catalyst containing active component.
Catalyst obtained above is vulcanized under 200 DEG C of carbon disulfide effects of temperature, is finally given with hydrogenation The finished catalyst C1 of activity.
Embodiment 2
Amount of calculation β zeolite is taken, (pH is 6.0) is added in the acetum of the Containing Zinc Chloride of amount of calculation, is stirred in 60 DEG C Wash after mixing 3 hours, be put in 120 DEG C of baking ovens and be dried 3 hours, obtain the carrier containing auxiliary agent.
The frerrous chloride and nickel nitrate of amount of calculation are taken, the aqueous solution is mixedly configured into, by the carrier containing auxiliary agent of above-mentioned preparation, Impregnate 4 hours in the aqueous solution of the frerrous chloride that temperature is 70 DEG C with nickel nitrate, add a small amount of sodium carbonate after filtration in carrier Solution (pH is 10.0), stirs 3 hours, is then placed in being dried 12 hours in 150 DEG C of baking ovens, that is, make the catalysis containing active component Agent.
Catalyst obtained above is vulcanized under the effect of 250 DEG C of DMDSs of temperature, finally give with plus The finished catalyst C2 of hydrogen activity.
Embodiment 3
Amount of calculation KIT-6 powder is taken, is added to (pH is 5.0) in the acetum of the chloride containing tin of amount of calculation, at 60 DEG C Middle stirring is washed after 2 hours, is put in 130 DEG C of baking ovens and is dried 3 hours, obtains the carrier containing auxiliary agent.
The ferric nitrate and nickel nitrate of amount of calculation are taken, the aqueous solution is mixedly configured into, by the carrier containing auxiliary agent of above-mentioned preparation, Temperature is to impregnate 6 hours in 80 DEG C of ferric nitrate and the aqueous solution of nickel nitrate, adds a small amount of SAS after filtration in carrier (pH is 10.0), stirs 4 hours, is then placed in being dried 12 hours in 150 DEG C of baking ovens, that is, make the catalyst containing active component.
Catalyst obtained above is vulcanized under 200 DEG C of carbon disulfide effects of temperature, is finally given with hydrogenation The finished catalyst C3 of activity.
Embodiment 4
Amount of calculation γ zeolite and ZSM-5 are taken, (pH in the hydrosulphuric acid solution of the Containing Zinc Chloride of amount of calculation and stannic chloride is added to 5.0), to wash after stirring 2 hours in 80 DEG C, it is put in 120 DEG C of baking ovens and is dried 4 hours, obtains the carrier containing auxiliary agent.
The ferric sulfate and nickel sulfate of amount of calculation are taken, the aqueous solution is mixedly configured into, by the carrier containing auxiliary agent of above-mentioned preparation, Temperature is to impregnate 4 hours in 80 DEG C of ferric sulfate and the aqueous solution of nickel sulfate, adds a small amount of SAS after filtration in carrier (pH is 9.5), stirs 3 hours, is then placed in being dried 12 hours in 150 DEG C of baking ovens, that is, make the catalyst containing active component.
Catalyst obtained above is vulcanized under 250 DEG C of carbon disulfide effects of temperature, is finally given with hydrogenation The finished catalyst C4 of activity.
The main physical and chemical of catalyst C1, C2, C3, C4 is shown in such as table 1 below in aforementioned four embodiment.
Kerosene hydrogenation refines altogether the main physical and chemical of catalyst in the embodiment of table 1
Embodiment 5
Kerosene hydrogenation of the present invention refines altogether the performance evaluation of catalyst, with autoclave as evaluating apparatus.Brown coal and to subtract Pressure residual oil is raw material, and feedstock property is shown in Table 2, and coal and oily mass ratio are 1: 1, and catalyst charge is coal and oily gross mass 1%.The evaluation method that kerosene hydrogenation is refined altogether is:High pressure is imported together with decompression residuum after catalyst is well mixed with coal dust anti- Kettle is answered, after displacement gas reactor, gas is flushed with hydrogen and is closed to 10.0MPa.Be warmed up to 450 DEG C reaction 2 hours after lower the temperature, collect kettle in gas Body and liquid are simultaneously analyzed, and catalyst centrifuge washing is reclaimed in kettle, and using said method catalyst C1, C2, C3, C4 are evaluated respectively, Evaluation result is shown in Table 3.Conversion ratio and oily yield data in table is to refine oil sum with coal and altogether as calculating benchmark.
Conversion ratio=(tetrahydrofuran insoluble SOLID ORGANIC matter/(coal+oil refining altogether) in 1- products) × 100%
N-hexane organic matter/(coal+oil refining altogether) × 100% is dissolved in oil yield=product
The feed coal of table 2 and property is refined oil altogether
Analysis project Brown coal Decompression residuum
C, wt% 71.3 81.5
H, wt% 6.8 11.8
O, wt% 18.5 3.2
N, wt% 2.4 1.3
S, wt% 1.0 2.1
Density (20 DEG C), g/cm3 1.31 0.998
The kerosene hydrogenation of table 3 refines altogether evaluation result
Catalyst Conversion ratio, wt% Oil yield, wt%
C1 95.6 75.4
C2 94.5 72.3
C3 98.7 79.6
C4 97.2 77.5
From table 3 it can be seen that there is the catalyst of the present invention good kerosene hydrogenation to refine catalytic cracking activity altogether, product turns Rate and oil yield are high.

Claims (8)

1. a kind of kerosene hydrogenation refines altogether catalyst, and the formula of the catalyst is made up of carrier, active component and auxiliary agent, its feature It is:The specific surface area of the carrier is 300~600m2/ g, pore volume is 0.5~1.0cm3/ g, the carrier is less than for particle diameter One or more in 200 microns of γ zeolites, β zeolites, ZSM-5, KIT-6 powder, the active component is iron and nickel, described Auxiliary agent is one or more in zinc chloride, stannic chloride;80~95 parts containing catalyst gross mass of the carrier, the activearm Divide 5~15 parts containing catalyst gross mass, 1~5 part containing catalyst gross mass of the auxiliary agent;Ferro element in the active component Containing catalyst gross mass 5~10 parts, 1~5 part containing catalyst gross mass of nickel element is above-mentioned for mass parts.
2. the preparation method of catalyst described in a kind of claim 1, it is characterised in that:By following steps:
First, by the formula of catalyst, carrier is added in the weakly acidic solution of the Containing Zinc Chloride of amount of calculation or stannic chloride, 30 Wash after stirring 1~4 hour in~90 DEG C, be then dried the carrier after washing 1~6 hour in 80~150 DEG C of temperature, Carrier is obtained;
2nd, by molysite and the formula of nickel salt, molysite and nickel salt are mixedly configured into into the aqueous solution, carrier prepared by step one is in temperature Spend to impregnate in 30~90 DEG C of molysite and the aqueous solution of nickel salt 1~8 hour, then filter in the carrier after dipping, then incited somebody to action Weakly alkaline solution is added in carrier after filter, is stirred 1~4 hour, be then placed in 80~150 DEG C of temperature dry 4~18 little When, that is, make the catalyst containing active component;
3rd, catalyst obtained in step 2 is carried out into sulfuration 1~4 hour under 100~300 DEG C of vulcanizing agent effects of temperature, is obtained final product To the finished catalyst with hydrogenation activity.
3. preparation method according to claim 2, it is characterised in that:The weakly acidic solution of the Containing Zinc Chloride or stannic chloride It is one or more in the acetic acid containing zinc chloride or stannic chloride, carbonic acid, hydrosulphuric acid solution, the pH value of the weakly acidic solution For 5~7.
4. preparation method according to claim 2, it is characterised in that:Described molysite is iron chloride, frerrous chloride, sulfuric acid One or more in iron, ferric nitrate, ferrous acetate, the nickel salt is the one kind or many in nickel nitrate, nickel sulfate, nickel acetate Kind.
5. preparation method according to claim 2, it is characterised in that:The weakly alkaline solution be sodium carbonate, sodium acid carbonate, One or more in sodium acetate, sodium citrate aqueous solution, the pH value of the weakly alkaline solution is 8~10.
6. preparation method according to claim 2, it is characterised in that:The vulcanizing agent be carbon disulfide, DMDS, One or more in dimethyl sulfide.
7. preparation method according to claim 2, it is characterised in that:In the step one, the carrier after washing is in temperature To be dried 1~6 hour in 80~150 DEG C of baking ovens, in the step 2, the carrier after stirring 1~4 hour is placed on temperature for 80 It is dried 4~18 hours in~150 DEG C of baking oven, that is, makes the catalyst containing active component.
8. a kind of application process of catalyst according to claim 1, it is characterised in that:The catalyst is mixed with raw material coal dust Autoclave is added after closing uniformly together with heavy oil, the raw material coal dust is in brown coal, jet coal, bottle coal, gas-rich coal Plant or various, the heavy oil is one or more in reduced crude, decompression residuum, tar asphalt, the addition of the catalyst The mass ratio for measuring 0.5~5 part for coal and oily gross mass, the coal and heavy oil is 1: 1, above-mentioned for mass parts.
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分散型镍、铁催化剂用于重油-煤的加氢共炼研究;戈军等;《中国石油大学学报(自然科学版)》;20110831;第35卷(第4期);第157页左栏第1行-第158页左栏第20行,第158页"1. 5 渣油、煤-油加氢共处理及其产物的分离分析",第163页"3结论" *

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