CN116396773A - Catalytic cracking slurry oil purifying agent for producing oil needle coke and preparation method thereof - Google Patents
Catalytic cracking slurry oil purifying agent for producing oil needle coke and preparation method thereof Download PDFInfo
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- 239000002002 slurry Substances 0.000 title claims abstract description 67
- 238000004523 catalytic cracking Methods 0.000 title claims abstract description 43
- 239000011331 needle coke Substances 0.000 title claims abstract description 35
- 239000012629 purifying agent Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title abstract description 13
- 239000003463 adsorbent Substances 0.000 claims abstract description 22
- 239000002904 solvent Substances 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 4
- 230000002195 synergetic effect Effects 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 86
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 30
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 30
- PHTQWCKDNZKARW-UHFFFAOYSA-N isoamylol Chemical compound CC(C)CCO PHTQWCKDNZKARW-UHFFFAOYSA-N 0.000 claims description 24
- -1 sorbitan fatty acid ester Chemical class 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 14
- 239000004359 castor oil Substances 0.000 claims description 12
- 235000019438 castor oil Nutrition 0.000 claims description 12
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 12
- 150000002191 fatty alcohols Chemical class 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 9
- 229930195729 fatty acid Natural products 0.000 claims description 9
- 239000000194 fatty acid Substances 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 9
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 8
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 8
- 244000060011 Cocos nucifera Species 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 8
- 239000012747 synergistic agent Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- BWDBEAQIHAEVLV-UHFFFAOYSA-N 6-methylheptan-1-ol Chemical compound CC(C)CCCCCO BWDBEAQIHAEVLV-UHFFFAOYSA-N 0.000 claims description 3
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims description 3
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 18
- 239000003054 catalyst Substances 0.000 abstract description 16
- 239000000843 powder Substances 0.000 abstract description 14
- 239000002994 raw material Substances 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000004231 fluid catalytic cracking Methods 0.000 description 9
- 238000000926 separation method Methods 0.000 description 9
- 239000002245 particle Substances 0.000 description 7
- 230000003197 catalytic effect Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000008394 flocculating agent Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000006229 carbon black Substances 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000011949 solid catalyst Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000004517 catalytic hydrocracking Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 229930091371 Fructose Natural products 0.000 description 1
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
- 239000005715 Fructose Substances 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000009845 electric arc furnace steelmaking Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- YWYZEGXAUVWDED-UHFFFAOYSA-N triammonium citrate Chemical compound [NH4+].[NH4+].[NH4+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O YWYZEGXAUVWDED-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- 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
- C10G29/00—Refining of hydrocarbon oils, in the absence of hydrogen, with other chemicals
- C10G29/20—Organic compounds not containing metal atoms
- C10G29/22—Organic compounds not containing metal atoms containing oxygen as the only hetero atom
-
- C—CHEMISTRY; METALLURGY
- 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
- C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G11/14—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts
- C10G11/18—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts according to the "fluidised-bed" technique
- C10G11/182—Regeneration
-
- C—CHEMISTRY; METALLURGY
- 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
- C10G29/00—Refining of hydrocarbon oils, in the absence of hydrogen, with other chemicals
- C10G29/20—Organic compounds not containing metal atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses a catalytic cracking slurry oil purifying agent for producing oil needle coke and a preparation method thereof. Comprises the following components in parts by weight: 30-50 parts of adsorbent, 5-10 parts of synergist, 5-10 parts of synergistic auxiliary agent and 30-50 parts of solvent. The catalytic cracking slurry oil purifying agent is an oil-soluble product, can directly act on an oil phase, has the advantages of small dosage, quick action time and simpler use method, can effectively remove catalyst powder in the catalytic cracking slurry oil, and is a better pretreatment agent when producing oil-based needle coke pretreatment raw materials.
Description
Technical Field
The invention belongs to the technical field of catalytic cracking slurry oil filtration, in particular to a catalytic cracking slurry oil purifying agent for producing oil needle coke and a preparation method thereof.
Background
Needle coke is an excellent carbon feedstock developed in the carbon materials of the sixties through seventies of the 20 th century, and it is primarily produced into graphite electrodes which are then used in electric arc furnace steelmaking. The production raw materials mainly comprise FCC (fluid catalytic cracking) slurry oil, coal tar and the like, and the high-quality needle coke is prepared by using the FCC slurry oil, so that the method has important significance in improving the utilization rate of petroleum resources in China, reducing the dependence on foreign petrochemical products and autonomously producing high-added-value products. Catalytic cracking is an important means for secondary processing of crude oil and is quite important in the whole process of lightening heavy oil. In addition to producing light components such as cracked gas, catalytic gasoline, and diesel, the catalytic cracking process produces byproducts, of which catalytic cracking slurry is one of the byproducts.
The catalytic cracking slurry oil is a heavy oil product from the bottom of a main fractionating tower of a catalytic cracking (FCC) device of an oil refinery, is rich in colloid and asphaltene, and has the characteristics of high viscosity, high density and the like. FCC slurry oils typically contain a certain amount of solid catalyst fines, with higher ash content, typically 0.2 to 0.9wt%. These catalyst powders affect the quality of the downstream products, for example as carbon black and needle coke feedstock, ash must be <0.05 wt% and the best quality must be < 0.02wt%. In addition, when the slurry oil with high catalyst powder content is used as fuel oil component, the abrasion of the flame nozzle can be accelerated, and when the slurry oil is used as hydrocracking raw material, the catalyst pore channel can be blocked, and the pressure drop is increased. Therefore, in order to increase the economic value of the catalytic cracking slurry, measures must be taken to remove the solid catalyst fines from the FCC slurry and reduce slurry ash. The production of carbon black and rubber extender oil requires that the solid particulate matter content in the slurry oil must be less than 500 mug/g; the content of solid particles in the slurry oil is lower than 300 mug/g, so that the high-grade carbon black can be produced; the content of solid particles in the catalytic slurry oil used for producing the needle coke is less than 100 mug/g; the production of carbon fiber requires that the content of solid particles in the slurry oil is lower than 50 mug/g; if the catalytic slurry oil is used as a raw material for hydrocracking, the content of solid particles must be less than 20 mug/g. Thus, the separation of the solid catalyst fines from the catalytic slurry is a prerequisite for efficient use of the catalytic slurry.
At present, five methods are used for removing catalyst powder in oil slurry, namely a natural precipitation method, a flocculation precipitation method, a centrifugal separation method, an electrostatic separation method and a filtration separation method. The natural precipitation method has low solid removal rate, long period and difficult removal of particles with the particle size below 20 um; the operation equipment required for the electrostatic separation method is complicated and is only required for a particle size of 10 -5 ～10 -6 m has high catalyst powder separation efficiency; the filtering separation method has high requirements on the escaping equipment.
The chemical agent assisted sedimentation method is an improvement on the traditional natural sedimentation method, and has the advantages of simple process and equipment and low cost. In recent years, research on a catalytic cracking slurry oil solid removing agent is mainly focused on the aspect of composite use of a water-soluble demulsifier and a flocculating agent, the method is to add the water-soluble demulsifier, the flocculating agent and a certain proportion of water into the slurry oil, aggregate and settle catalyst powder by using the flocculating agent, and then separate an aqueous phase containing the catalyst powder from an oil phase by the action of the demulsifier, so that the purpose of removing the catalyst powder from the slurry oil is finally achieved. For example, in patent CN 100395313C, water containing a demulsifier and a flocculant, which is one or a complex of polymerized silicate, polyaluminum chloride, and the like, is mixed with the mixed water after being preheated, demulsified, and the lower water enriched with the catalyst powder is separated. The method provided by the invention has the advantages of short removal time and high removal rate. For example, when the patent CN100410351C is used for treating heavy slurry oil with the specific gravity greater than or equal to that of water, weak electrolyte or non-electrolyte which is greater than that of water and is miscible with water, such as amine acetate, ammonium citrate, fructose and the like are added as auxiliary agents to remove catalyst powder in the slurry oil, so that the removal time is short and the removal rate is high. However, the above methods use water-soluble agents, and the catalyst powder is in the oil phase, so that the removal of the catalyst powder is heterogeneous, and the catalyst powder needs to undergo a removal process from the oil phase to the water phase, which tends to affect the removal efficiency; on the other hand, the above methods require adding an aqueous phase to the catalytic cracking slurry oil, and although demulsifiers are used for oil-water separation, water is certainly remained in the slurry oil, so that the quality of the slurry oil is affected; finally, most of the flocculants used in these methods contain metal ions (such as polyaluminum chloride) and the residues in the slurry can adversely affect the deep utilization of the slurry (e.g., increase ash values, poison catalysts, etc.).
Disclosure of Invention
The invention aims to provide a catalytic cracking slurry oil purifying agent for producing oil needle coke and a preparation method thereof.
A catalytic cracking slurry oil purifying agent for producing oil needle coke comprises the following components in parts by weight: 30-50 parts of adsorbent, 5-10 parts of synergist, 5-10 parts of synergistic auxiliary agent and 30-50 parts of solvent.
The adsorbent is prepared from sorbitan fatty acid ester and coconut diethanolamide according to a mass ratio of 1: 1.
The synergistic agent is C 12—18 Alkyl dimethyl benzyl ammonium chloride and C 12—14 Fatty alcohol polyoxyethylene ether is prepared from the following components in percentage by mass: 1.
Preferably, the synergist is C 16 Alkyl dimethyl benzyl ammonium chloride and C 13 Fatty alcohol polyoxyethylene ether is prepared from the following components in percentage by mass: 1.
The synergistic additive is one or more of castor oil polyoxyethylene ether, laurinol polyoxyethylene ether and nonylphenol polyoxyethylene ether.
The solvent is one or more of isoamyl alcohol, octanol and isooctyl alcohol.
The preparation method of the catalytic cracking slurry oil purifying agent for producing the oil needle coke comprises the following steps: mixing the adsorbent, synergist and solvent, stirring at 50-70deg.C under normal pressure for 1-3 hr at stirring speed of 100-300r/min, cooling to room temperature, and filtering to remove solid impurities.
The pore diameter of a filter screen adopted by the filtration is 0.7-0.8 mu m.
The invention has the beneficial effects that: the catalytic cracking slurry oil purifying agent is an oil-soluble product, can directly act on an oil phase, has the advantages of small dosage, quick action time and simpler use method, can effectively remove catalyst powder in the catalytic cracking slurry oil, and is a better pretreatment agent when producing oil-based needle coke pretreatment raw materials.
Detailed Description
The present invention will be described more fully hereinafter in order to facilitate an understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
A catalytic cracking slurry oil purifying agent for producing oil needle coke comprises the following components in parts by weight: 40 parts of adsorbent, 8 parts of synergist, 8 parts of castor oil polyoxyethylene ether and 40 parts of isoamyl alcohol; the adsorbent is prepared from sorbitan fatty acid ester and coconut diethanolamide according to a mass ratio of 1: 1; the synergistic agent is C 16 Alkyl dimethyl benzyl ammonium chloride and C 13 Fatty alcohol polyoxyethylene ether is prepared from the following components in percentage by mass: 1.
The preparation method of the catalytic cracking slurry oil purifying agent for producing the oil needle coke comprises the following steps: mixing the adsorbent, synergist, castor oil polyoxyethylene ether and isoamyl alcohol, stirring at 60deg.C under normal pressure for 2 hr/min at stirring speed of 200r/min, cooling to room temperature, and filtering (with filter screen pore diameter of 0.75 μm) to remove solid impurities.
Example 2
A catalytic cracking slurry oil purifying agent for producing oil needle coke comprises the following components in parts by weight: 30 parts of adsorbent, 5 parts of synergist, 5 parts of laurinol polyoxyethylene ether and 30 parts of octanol; the adsorbent is sorbitan fatty acid ester and diethyl cocoateAlcohol amide is prepared from the following components in percentage by mass: 1; the synergistic agent is C 12 Alkyl dimethyl benzyl ammonium chloride and C 12 Fatty alcohol polyoxyethylene ether is prepared from the following components in percentage by mass: 1.
The preparation method of the catalytic cracking slurry oil purifying agent for producing the oil needle coke comprises the following steps: mixing the adsorbent, synergist, laurinol polyoxyethylene ether and octanol, stirring at 50deg.C under normal pressure for 3 hr at stirring speed of 300r/min, cooling to room temperature, and filtering (with filter screen aperture of 0.7 μm) to remove solid impurities.
Example 3
A catalytic cracking slurry oil purifying agent for producing oil needle coke comprises the following components in parts by weight: 50 parts of adsorbent, 10 parts of synergist, 10 parts of nonylphenol polyoxyethylene ether and 50 parts of isooctanol; the adsorbent is prepared from sorbitan fatty acid ester and coconut diethanolamide according to a mass ratio of 1: 1; the synergistic agent is C 18 Alkyl dimethyl benzyl ammonium chloride and C 14 Fatty alcohol polyoxyethylene ether is prepared from the following components in percentage by mass: 1.
The preparation method of the catalytic cracking slurry oil purifying agent for producing the oil needle coke comprises the following steps: mixing the adsorbent, synergist and solvent, stirring at 70deg.C under normal pressure for 1 hr at stirring speed of 300r/min, cooling to room temperature, and filtering (with filter screen pore diameter of 0.8 μm) to remove solid impurities.
Comparative example 1
A catalytic cracking slurry oil purifying agent for producing oil needle coke comprises the following components in parts by weight: 40 parts of sorbitan fatty acid ester, 8 parts of synergist, 8 parts of castor oil polyoxyethylene ether and 40 parts of isoamyl alcohol; the synergistic agent is C 16 Alkyl dimethyl benzyl ammonium chloride and C 13 Fatty alcohol polyoxyethylene ether is prepared from the following components in percentage by mass: 1.
The preparation method of the catalytic cracking slurry oil purifying agent for producing the oil needle coke comprises the following steps: mixing sorbitan fatty acid ester, synergist, castor oil polyoxyethylene ether and isoamyl alcohol, stirring at 60deg.C under normal pressure for 2 hr at stirring speed of 200r/min, cooling to room temperature, and filtering (with filter screen pore diameter of 0.75 μm) to remove solid impurities.
Comparative example 2
A catalytic cracking slurry oil purifying agent for producing oil needle coke comprises the following components in parts by weight: 40 parts of coconut diethanolamide, 8 parts of synergist, 8 parts of castor oil polyoxyethylene ether and 40 parts of isoamyl alcohol; the synergistic agent is C 16 Alkyl dimethyl benzyl ammonium chloride and C 13 Fatty alcohol polyoxyethylene ether is prepared from the following components in percentage by mass: 1.
The preparation method of the catalytic cracking slurry oil purifying agent for producing the oil needle coke comprises the following steps: mixing coconut diethanolamide, synergist, castor oil polyoxyethylene ether and isoamyl alcohol, stirring at 60deg.C under normal pressure for 2 hr at stirring speed of 200r/min, cooling to room temperature, and filtering (with filter screen pore diameter of 0.75 μm) to remove solid impurities.
Comparative example 3
A catalytic cracking slurry oil purifying agent for producing oil needle coke comprises the following components in parts by weight: 40 parts of adsorbent C 16 8 parts of alkyl dimethyl benzyl ammonium chloride, 8 parts of castor oil polyoxyethylene ether and 40 parts of isoamyl alcohol; the adsorbent is prepared from sorbitan fatty acid ester and coconut diethanolamide according to a mass ratio of 1: 1.
The preparation method of the catalytic cracking slurry oil purifying agent for producing the oil needle coke comprises the following steps: adsorbent, C 16 Mixing alkyl dimethyl benzyl ammonium chloride, castor oil polyoxyethylene ether and isoamyl alcohol, stirring at 60 deg.c and normal pressure for 2 hr at stirring speed of 200r/min, cooling to normal temperature, and filtering to eliminate solid impurity to obtain the final product.
Comparative example 4
A catalytic cracking slurry oil purifying agent for producing oil needle coke comprises the following components in parts by weight: 40 parts of adsorbent C 13 8 parts of fatty alcohol polyoxyethylene ether, 8 parts of castor oil polyoxyethylene ether and 40 parts of isoamyl alcohol; the adsorbent is water lossThe mass ratio of the sorbitol fatty acid ester to the coconut diethanolamide is 1: 1.
The preparation method of the catalytic cracking slurry oil purifying agent for producing the oil needle coke comprises the following steps: adsorbent, C 13 Mixing fatty alcohol polyoxyethylene ether, castor oil polyoxyethylene ether and isoamyl alcohol, stirring at 60deg.C under normal pressure for 2 hr/min at stirring speed of 200r/min, cooling to room temperature, and filtering (with filter screen pore diameter of 0.75 μm) to remove solid impurities.
Experimental example:
catalytic cracking slurry (FCC slurry) is from the same batch of slurry from chinese petrochemical metallocene company, and the solid particulate matter (ash) content is 1838 μg/g. Mixing FCC slurry oil and the purifying agent uniformly in a cyclone mixer according to the adding amount of the purifying agent of 500ppm of the mass of the FCC slurry oil, heating to 90 ℃, performing cyclone separation for 2 hours at the rotating speed of 2000 rpm to obtain a mixture of light component clarified oil and heavy component, and collecting the light component clarified oil.
Ash content (. Mu.g/g) in clarified oil obtained by adding the purifying agents of examples 1 to 3 and comparative examples 1 to 4 was measured according to GB/T508-85 Petroleum product ash assay, respectively; the measurement results are shown in Table 1:
TABLE 1
Note that: * Representing a comparison of P <0.05 with example 1 group.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. The catalytic cracking slurry oil purifying agent for producing the oil needle coke is characterized by comprising the following components in parts by weight: 30-50 parts of adsorbent, 5-10 parts of synergist, 5-10 parts of synergistic auxiliary agent and 30-50 parts of solvent.
2. The catalytic cracking slurry oil purifying agent for producing oil-based needle coke according to claim 1, wherein the adsorbent is sorbitan fatty acid ester and coconut diethanolamide in a mass ratio of 1: 1.
3. The catalytic cracking slurry oil purifier for producing oil needle coke according to claim 1, wherein the synergist is C 12—18 Alkyl dimethyl benzyl ammonium chloride and C 12—14 Fatty alcohol polyoxyethylene ether is prepared from the following components in percentage by mass: 1.
4. The catalytic cracking slurry purification agent for producing oil needle coke according to claim 3, wherein the synergist is C 16 Alkyl dimethyl benzyl ammonium chloride and C 13 Fatty alcohol polyoxyethylene ether is prepared from the following components in percentage by mass: 1.
5. The catalytic cracking slurry oil purifying agent for producing oil needle coke according to claim 1, wherein the synergistic agent is one or more of castor oil polyoxyethylene ether, laurinol polyoxyethylene ether and nonylphenol polyoxyethylene ether.
6. The catalytic cracking slurry oil purifying agent for producing oil-based needle coke according to claim 1, wherein the solvent is one or more of isoamyl alcohol, octanol, and isooctyl alcohol.
7. The method for producing a catalytic cracking slurry purifying agent for producing an oil-based needle coke as claimed in claim 1, characterized by comprising the steps of: mixing the adsorbent, synergist and solvent, stirring at 50-70deg.C under normal pressure for 1-3 hr at stirring speed of 100-300r/min, cooling to room temperature, and filtering to remove solid impurities.
8. The method for producing a catalytic cracking slurry purification agent for oil needle coke according to claim 7, wherein the filter screen used for the filtration has a pore size of 0.7-0.8 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310062552.4A CN116396773A (en) | 2023-01-18 | 2023-01-18 | Catalytic cracking slurry oil purifying agent for producing oil needle coke and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310062552.4A CN116396773A (en) | 2023-01-18 | 2023-01-18 | Catalytic cracking slurry oil purifying agent for producing oil needle coke and preparation method thereof |
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| Publication Number | Publication Date |
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| CN116396773A true CN116396773A (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310062552.4A Pending CN116396773A (en) | 2023-01-18 | 2023-01-18 | Catalytic cracking slurry oil purifying agent for producing oil needle coke and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116396773A (en) |
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- 2023-01-18 CN CN202310062552.4A patent/CN116396773A/en active Pending
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