CN111974292B - System for batching and discharging and method for preparing synthetic oil complex catalyst - Google Patents
System for batching and discharging and method for preparing synthetic oil complex catalyst Download PDFInfo
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- CN111974292B CN111974292B CN201910431293.1A CN201910431293A CN111974292B CN 111974292 B CN111974292 B CN 111974292B CN 201910431293 A CN201910431293 A CN 201910431293A CN 111974292 B CN111974292 B CN 111974292B
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- 238000007599 discharging Methods 0.000 title claims abstract description 46
- 239000003054 catalyst Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 63
- 239000002994 raw material Substances 0.000 claims abstract description 59
- 238000002360 preparation method Methods 0.000 claims abstract description 37
- 238000003756 stirring Methods 0.000 claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 4
- 230000000536 complexating effect Effects 0.000 claims description 2
- 238000013329 compounding Methods 0.000 claims description 2
- 238000013019 agitation Methods 0.000 claims 1
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 15
- 239000003921 oil Substances 0.000 description 11
- 238000005192 partition Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 229920013639 polyalphaolefin Polymers 0.000 description 5
- 239000002904 solvent Substances 0.000 description 4
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 2
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 2
- 125000005233 alkylalcohol group Chemical group 0.000 description 2
- 239000002199 base oil Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 125000003158 alcohol group Chemical group 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- -1 alkyl carboxylic acid Chemical class 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000010689 synthetic lubricating oil Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F21/00—Dissolving
- B01F21/10—Dissolving using driven stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
- B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
- B01F35/7547—Discharge mechanisms characterised by the means for discharging the components from the mixer using valves, gates, orifices or openings
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/22—Organic complexes
- B01J31/2204—Organic complexes the ligands containing oxygen or sulfur as complexing atoms
- B01J31/2208—Oxygen, e.g. acetylacetonates
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic Table
- C07F5/02—Boron compounds
- C07F5/022—Boron compounds without C-boron linkages
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The disclosure relates to a system for batching and discharging and a method for preparing a complex catalyst for synthetic oil. A system for batching and discharging comprises a raw material inlet, a batching and feeding tank, a stirring device, a solution conveying device and a mixture outlet; the tank body for preparing the feeding tank is divided into a main cavity and an auxiliary cavity, and the tank body is provided with a communicating state in which the main cavity is communicated with the auxiliary cavity in a liquid manner and a non-communicating state in which the main cavity is isolated from the auxiliary cavity in the liquid manner; the raw material inlet is communicated with the main cavity, and the stirring device is arranged in the main cavity; but the main cavity is equipped with open closed main cavity discharge gate, and vice chamber is equipped with open closed vice chamber discharge gate, and the main cavity discharge gate of the state of opening and the vice chamber discharge gate of the state of opening communicate with solution conveyor's entry respectively, solution conveyor's export and mixture export liquid intercommunication. The system and the method disclosed by the invention can meet the requirements of discontinuous preparation and continuous discharging, and can reduce equipment investment, reduce occupied area and save operation cost.
Description
Technical Field
The disclosure relates to the technical field of synthetic oil, in particular to a system for batching and discharging and a method for preparing a synthetic oil complex catalyst.
Background
Poly Alpha Olefin (PAO) synthetic oils are polymers obtained by polymerizing linear alpha olefins, usually 1-decene, but also mono-or mixed olefins from 1-octene to 1-dodecene, and are the most important group IV synthetic lubricant base oils. The IV synthetic lubricating oil base oil has the characteristics of high viscosity index, low pour point, high flash point, good thermal oxidation stability, excellent high and low temperature performance, long service life and the like, and is particularly suitable for the industries of aerospace, military, transportation, cosmetics and the like.
The catalyst used in PAO polymerization is BF3The promoter is a donor (such as RCOOH, ROH, etc.), and is formulated into donor-BF3A complex compound. The existing solution preparation system generally comprises a proton donor and an excessive molar amount of BF3Injecting into a preparation container, fully dissolving, and guiding to another discharging buffer container to realize the purposes of intermittent preparation and continuous discharging. The preparation system has the defects that two containers and two pumps are mainly arranged, the investment is high, and the occupied area is large.
Disclosure of Invention
The invention aims to provide a system for batching and discharging and a method for preparing a synthetic oil complex catalyst, which can realize discontinuous preparation and continuous discharging.
In order to achieve the above object, a first aspect of the present disclosure provides a system for ingredient discharge, the apparatus including a raw material inlet, a preparation feed tank, a stirring device, a solution conveying device, and a mixture outlet; the tank body of the preparation feeding tank is divided into a main cavity and an auxiliary cavity, and the tank body is provided with a communication state of liquid communication between the main cavity and the auxiliary cavity and a non-communication state of liquid isolation between the main cavity and the auxiliary cavity; the raw material inlet is communicated with the main cavity, and the stirring device is arranged in the main cavity; the main cavity is provided with a openable main cavity discharge hole, the auxiliary cavity is provided with an openable auxiliary cavity discharge hole, the main cavity discharge hole and the auxiliary cavity discharge hole are in an opening state, the auxiliary cavity discharge hole is respectively communicated with the inlet of the solution conveying device, and the outlet of the solution conveying device is communicated with the mixed material outlet liquid.
Optionally, a partition is arranged in the tank body of the preparation feeding tank, the bottom edge and the side edge of the partition are respectively and hermetically connected with the inside of the tank body so as to divide the tank body into the main cavity and the auxiliary cavity which are arranged side by side, and the top end of the partition forms a space with the top of the tank body; the main cavity discharge port set up in the bottom of main cavity, vice chamber discharge port set up in the bottom of vice chamber.
Optionally, a main discharge pipe is connected between the main cavity discharge port and an inlet of the solution conveying device, and the main discharge pipe is connected with a main cavity discharge valve so as to form the openable main cavity discharge port by controlling the opening and closing of the main cavity discharge valve; the auxiliary cavity and the inlet of the solution conveying device are connected with an auxiliary discharging pipe, the auxiliary discharging pipe is connected with an auxiliary cavity discharging valve, and the auxiliary cavity discharging valve is controlled to be opened and closed to form the openable auxiliary cavity discharging port.
Optionally, a communicating pipe is arranged between the main chamber and the auxiliary chamber, and a control valve is arranged on the communicating pipe, so that the tank body is in the communicating state and the non-communicating state by controlling the opening and closing of the control valve.
Optionally, the discharge port of the main chamber and the discharge port of the auxiliary chamber are respectively communicated with a manifold, and the outlet of the manifold is communicated with the inlet of the solution conveying device; in the communicating state, the main chamber bleeder valve and the auxiliary chamber bleeder valve are each opened to communicate the main chamber and the auxiliary chamber through the manifold; in the non-communicating state, the primary chamber vent valve and the secondary chamber vent valve are each closed.
Optionally, a main cavity liquid level meter and a secondary cavity liquid level meter are respectively connected to the main cavity and the secondary cavity.
Optionally, the raw material inlet comprises a gas raw material inlet and a liquid raw material inlet, the gas raw material inlet is connected with a first raw material inlet pipe, the first raw material inlet pipe is provided with a gas raw material valve, the liquid raw material inlet is connected with a second raw material inlet pipe, and the second raw material inlet pipe is provided with a liquid raw material valve.
Optionally, the stirring device further comprises a gas distributor, wherein the gas distributor is arranged in the main cavity and is positioned below the stirring device; the inlet of the gas distributor is communicated with the gas raw material inlet, and the outlet of the gas distributor is arranged upwards.
A second aspect of the present disclosure provides a method of formulating a synthetic oil complex catalyst using the system of the first aspect of the present disclosure, the method comprising the steps of:
s1, closing the discharge hole of the main cavity, then enabling gas raw materials and liquid raw materials to enter the main cavity through the raw material inlet, and mixing and preparing through the stirring device to obtain the complex catalyst;
s2, enabling the tank body to be in the communication state, so that at least part of the complex catalyst in the main cavity enters the auxiliary cavity;
s3, enabling the tank body to be in the non-communication state, opening the discharge hole of the main cavity and starting the solution conveying device, so that the complex catalyst in the main cavity is conveyed out of the system through the solution conveying device;
s4, closing the discharge port of the main cavity and opening the discharge port of the auxiliary cavity so as to lead the complex catalyst in the auxiliary cavity to be sent out of the system through the solution conveying device, and simultaneously repeating the step S1 to prepare the complex catalyst in the main cavity;
s5, repeating the steps S1-S4 to enable the solution conveying device to continuously send out the complex catalyst.
Optionally, the method further comprises:
in step S2, when the liquid levels of the complex catalyst in the main chamber and the auxiliary chamber are the same, performing step S3;
in step S3, when the liquid complexing the catalyst in the main chamber is low to the lower limit, step S4 is performed;
in step S4, when the level of the complexed catalyst in the sub-chamber is lowered to the lower limit, step S5 is performed.
The utility model discloses a system is through main cavity and the vice chamber of the internal controllable intercommunication that sets up of jar at the preparation feeding jar, and set up main cavity and vice chamber into steerable switching respectively, thereby can realize intermittent type batching, the continuous ejection of compact through the intercommunication state between two control chambers and the respective switching state of the two, a container and a solution delivery pump have been saved to this system, compare traditional intermittent type preparation continuous ejection of compact system, this system and method can enough satisfy the requirement of intermittent type preparation, the continuous ejection of compact, the equipment investment has been reduced again, the occupation of land has been reduced, the daily operating cost has also been saved.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a schematic view of one embodiment of a system for ingredient discharge of the present disclosure.
Description of the reference numerals
Equipment code number: 1. preparing a feeding tank 2, a stirrer 1a, a main cavity 1b, an auxiliary cavity 3, a solution delivery pump 4, a gas distributor 5 and a jacket; valve and level gauge code: A. a solvent feeding valve, a B main cavity discharging valve, a C auxiliary cavity discharging valve, an L1 main cavity liquid level indicator, an L2 auxiliary cavity liquid level indicator; pipeline logistics code number: m, n-butanol, N, BF3S, n-butanol-BF3A complex compound.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise stated, the use of directional words such as "up" and "down" generally refers to the up and down of the device in normal use, and specifically refers to the orientation of the drawing in fig. 1. The "inner and outer" are with respect to the outline of the device itself.
The first aspect of the present disclosure provides a system for batching and discharging, the device comprising a raw material inlet, a batching and feeding tank, a stirring device, a solution conveying device and a mixture outlet; the tank body of the preparation feeding tank is divided into a main cavity and an auxiliary cavity, and the tank body is provided with a communication state of liquid communication between the main cavity and the auxiliary cavity and a non-communication state of liquid isolation between the main cavity and the auxiliary cavity; the raw material inlet is communicated with the main cavity, and the stirring device is arranged in the main cavity; the main cavity is provided with a openable main cavity discharge hole, the auxiliary cavity is provided with an openable auxiliary cavity discharge hole, the main cavity discharge hole and the auxiliary cavity discharge hole are in an opening state, the auxiliary cavity discharge hole is respectively communicated with the inlet of the solution conveying device, and the outlet of the solution conveying device is communicated with the mixed material outlet liquid.
The utility model discloses a system is through main cavity and the vice chamber of the internal controllable intercommunication that sets up of jar at the preparation feeding jar, and set up main cavity and vice chamber into steerable switching respectively, thereby can realize intermittent type batching through the intercommunication state between two control chambers and the respective switching state of the two, the continuous ejection of compact, a container and a solution delivery pump have been saved to this system, compare traditional continuous ejection of compact system of preparing of interrupting, this system can satisfy the requirement of interrupting the preparation, the continuous ejection of compact, and the equipment investment has been reduced, the occupation of land has been reduced, the daily operating cost has also been saved.
According to the present disclosure, the liquid isolation between the main cavity and the auxiliary cavity means that the liquid in the main cavity and the liquid in the auxiliary cavity are not communicated and do not flow each other. The stirring device may be of a type conventional in the art, and may be, for example, at least one of a turbine stirrer, a paddle stirrer, a propeller stirrer, an anchor stirrer, a gate stirrer, a ribbon or a screw stirrer; the liquid delivery means may be of a type conventional in the art, such as a liquid delivery pump; the can body shape may be conventional in the art, such as a vertical cylindrical can body.
In a specific embodiment of the present disclosure, a partition may be disposed in the tank body of the preparation feeding tank, and a bottom edge and a side edge of the partition are hermetically connected to the inside of the tank body respectively, so as to divide the tank body into the main cavity and the auxiliary cavity which are disposed side by side; a space may be formed between the top end of the partition and the top of the can body; further, in order to facilitate discharging of liquid in the main cavity and the auxiliary cavity, the main cavity discharge port may be disposed at the bottom of the main cavity, and the auxiliary cavity discharge port may be disposed at the bottom of the auxiliary cavity. Further, in one embodiment, the partition may be formed as a partition plate.
In one embodiment of the present disclosure, in order to facilitate the respective control of the discharge of liquid in the main cavity and the auxiliary cavity, in one embodiment, a main discharge pipe may be connected between the main cavity discharge port and the inlet of the solution conveying device, and the main discharge pipe may be connected to a main cavity discharge valve, so as to form the openable main cavity discharge port by controlling the opening and closing of the main cavity discharge valve; the auxiliary cavity and the inlet of the solution conveying device can be connected with an auxiliary discharging pipe, and the auxiliary discharging pipe can be connected with an auxiliary cavity discharging valve so as to form the openable auxiliary cavity discharging port by controlling the opening and closing of the auxiliary cavity discharging valve.
In order to realize the switching between the communication state and the non-communication state between the main chamber and the auxiliary chamber, in a specific embodiment of the present disclosure, a communication pipe may be disposed between the main chamber and the auxiliary chamber, and a control valve may be disposed on the communication pipe, so that the chamber has the communication state and the non-communication state by controlling the opening and closing of the control valve.
In another embodiment, the discharge port of the main chamber and the discharge port of the auxiliary chamber may be respectively communicated with a manifold, and the outlet of the manifold may be communicated with the inlet of the solution delivery device; in this embodiment, in the communicating state, the main chamber vent valve and the secondary chamber vent valve may each be opened to communicate the main chamber and the secondary chamber through the manifold; in the non-communicating state, the primary chamber vent valve and the secondary chamber vent valve may each be closed.
According to the present disclosure, in one embodiment, the main chamber and the auxiliary chamber may be respectively connected with a main chamber liquid level meter and an auxiliary chamber liquid level meter for respectively detecting liquid levels of the main chamber and the auxiliary chamber, thereby facilitating control of the batching state of the system.
According to the present disclosure, in order to facilitate feeding into the tank, in one embodiment, the raw material inlet may include a gas raw material inlet and a liquid raw material inlet, the gas raw material inlet may be connected with a first raw material inlet pipe, the first raw material inlet pipe may be provided with a gas raw material valve, the liquid raw material inlet may be connected with a second raw material inlet pipe, and the second raw material inlet pipe may be provided with a liquid raw material valve.
In one embodiment, to provide uniform distribution of the gas feed into the tank, the system may further include a gas distributor in one embodiment; furthermore, the gas distributor can be arranged in the main cavity and below the stirring device, and an inlet of the gas distributor can be communicated with the gas raw material inlet, so that the contact area of gas-liquid two-phase materials in the preparation process is effectively increased, and uniform gas-liquid mixing is facilitated; further preferably, the outlet of the gas distributor is arranged upward, so that the gas raw material entering the main cavity to be mixed is fully mixed with the liquid raw material.
In one embodiment, the system may further comprise a jacket to meet temperature requirements during the compounding process, e.g., the jacket may be located outside the tank to maintain the desired temperature of the contents of the tank. In another embodiment, a coiled tube may be disposed within the canister. Depending on the desired temperature, a cooling medium or heating medium may be provided within the jacket and/or within the coil.
In one embodiment of the present disclosure, taking the preparation of a complex catalyst for synthetic oil as an example, the method for dosing and discharging materials by using the system of the present disclosure may include:
when the preparation is carried out for the first time, n-butanol is firstly injected into the main cavity, when the liquid level reaches a set value, the solvent feeding valve is closed, the stirrer is started, and then BF is added3Injecting the mixture into the main cavity of the preparation feeding tank through a gas distributor. After fully dissolving, completing preparation, then opening the discharge valves of the main cavity and the auxiliary cavity to communicate the main cavity and the auxiliary cavity, and preparing the n-butyl alcohol-BF3The complex is introduced into the auxiliary chamber. When the liquid levels of the main cavity and the auxiliary cavity are level, the discharge valve of the auxiliary cavity is closed, the complex conveying pump can be started to discharge, and the discharged material comes from the main cavity.
When the liquid level of the main cavity is lowered to the lower limit, the next preparation is neededWhen the automatic discharging device is used, the discharging valve of the main cavity is closed, the discharging valve of the auxiliary cavity is opened, the switching of the discharging cavities is completed, and the discharging comes from the auxiliary cavity at the moment. Then adding n-butanol and BF to the main chamber3After the stirrer fully stirs, the discharging valve of the main cavity is opened, the discharging valve of the auxiliary cavity is closed when the liquid levels of the main cavity and the auxiliary cavity are parallel and level, the discharging valve of the auxiliary cavity is closed, the solution from the main cavity is conveyed, and the liquid level of the main cavity is low to the lower limit, and the next round of preparation is started. The continuous discharging of the discontinuous preparation can be realized by the repeated operation.
A second aspect of the present disclosure provides a method of formulating a synthetic oil complex catalyst using the system of the first aspect of the present disclosure, the method comprising the steps of:
s1, closing the discharge hole of the main cavity, then enabling gas raw materials and liquid raw materials to enter the main cavity through the raw material inlet, and mixing and preparing through the stirring device to obtain the complex catalyst;
s2, enabling the tank body to be in the communication state, so that at least part of the complex catalyst in the main cavity enters the auxiliary cavity;
s3, enabling the tank body to be in the non-communication state, opening the discharge hole of the main cavity and starting the solution conveying device, so that the complex catalyst in the main cavity is conveyed out of the system through the solution conveying device;
s4, closing the discharge port of the main cavity and opening the discharge port of the auxiliary cavity so as to lead the complex catalyst in the auxiliary cavity to be sent out of the system through the solution conveying device, and simultaneously repeating the step S1 to prepare the complex catalyst in the main cavity;
s5, repeating the steps S1-S4 to enable the solution conveying device to continuously send out the complex catalyst.
The method can realize the purposes of uniform mixing, intermittent preparation and continuous discharging of the gas raw material and the liquid raw material, and has simple and convenient operation and high preparation efficiency.
Further, when the liquid phases of the complex catalyst in the main chamber and the sub chamber are the same in step S2, step S3 may be started.
In one embodiment, when step S3 is performed, step S4 may be performed when the amount of liquid in the main chamber that is complexed with the catalyst is reduced to a lower limit in order to fully utilize the capacity of the main chamber and improve dosing and delivery efficiency.
In one embodiment, when step S4 is performed, in order to fully utilize the capacity of the sub-chamber and improve the dosing and delivery efficiency, step S5 may be performed when the level of complexed catalyst in the sub-chamber is lowered to a lower limit.
In the process according to the present disclosure, the synthetic oil complex catalyst may be of the kind conventional in the art, being the catalyst used for the polymerization of Polyalphaolefin (PAO) synthetic oils, for example, proton donor-BF3Complexes in which the gaseous feed may be BF3The liquid feedstock may be a proton donor, for example an alkyl carboxylic acid and/or an alkyl alcohol, preferably an alkyl alcohol, more preferably n-butanol; the temperature of the feeding tank in the preparation process can be 10-60 ℃, and preferably 20-50 ℃.
In the method, the preparation time of the gas raw material and the liquid raw material in the preparation feeding tank is 2-3 hours.
The systems and methods of the present disclosure are illustrated by the following examples.
Example 1
As shown in FIG. 1, a certain amount of gaseous feed N (BF)3) Enters the main cavity 1a of the preparation feeding tank 1 through the gas distributor 4, and simultaneously opens the solvent feeding valve A to inject n-butanol M into the main cavity 1 a. When the main cavity liquid level indicator L1 indicates that the liquid level reaches the set value, the solvent feeding valve A is closed, the stirrer 2 is started, and the n-butyl alcohol-BF is completed after full dissolution3And (3) preparing a complex S, then opening a discharge valve B of the main cavity and a discharge valve C of the auxiliary cavity to communicate the main cavity and the auxiliary cavity, and introducing the solution into the auxiliary cavity. When the main cavity liquid level indicator L1 and the auxiliary cavity liquid level indicator L2 indicate that the liquid phases are the same, the auxiliary cavity discharging valve C is closed, the solution delivery pump 4 can be started to discharge, and the discharge comes from the main cavity 1a at the moment.
When the main cavity liquid level indicator L1 indicates that the liquid level is low to the lower limit, needs to carry out the next round of preparation, closes main cavity ejection of compact valve B to open vice chamber ejection of compact valve C, accomplish the ejection of compact chamber and switch, the ejection of compact comes from vice chamber 1B this moment. Then to the main chamber1a addition of quantitative BF3And n-butyl alcohol M, completing preparation after the stirrer 2 fully stirs, opening the main cavity discharging valve B, closing the auxiliary cavity discharging valve C after the main cavity liquid level indicator L1 and the auxiliary cavity liquid level indicator L2 indicate that the liquid levels are the same, and conveying n-butyl alcohol-BF from the main cavity 1a3Complex S, the main chamber level indicator L1 indicated that the level was low to the lower limit, and the next round of formulation was started. The continuous discharging of the discontinuous preparation can be realized by the repeated operation.
According to the invention, the BF is prepared by the device and the method for preparing the synthetic oil complex catalyst3The preparation time with n-butanol M in the preparation feeding tank 1 is 2-3 hours.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (6)
1. The method for preparing the synthetic oil complex catalyst by adopting a batching and discharging system is characterized in that,
the system comprises a raw material inlet, a preparation feeding tank, a stirring device, a solution conveying device and a mixture outlet;
the tank body of the preparation feeding tank is divided into a main cavity and an auxiliary cavity, and the tank body is provided with a communication state of liquid communication between the main cavity and the auxiliary cavity and a non-communication state of liquid isolation between the main cavity and the auxiliary cavity; the raw material inlet is communicated with the main cavity, and the stirring device is arranged in the main cavity; the main cavity is provided with an openable main cavity discharge hole, the auxiliary cavity is provided with an openable auxiliary cavity discharge hole, the main cavity discharge hole in an opened state and the auxiliary cavity discharge hole in an opened state are respectively communicated with an inlet of the solution conveying device, and an outlet of the solution conveying device is in liquid communication with the mixture outlet;
a main discharging pipe is connected between the main cavity discharging hole and an inlet of the solution conveying device, and the main discharging pipe is connected with a main cavity discharging valve so as to form the openable main cavity discharging hole by controlling the opening and closing of the main cavity discharging valve; an auxiliary discharge pipe is connected between the auxiliary cavity and an inlet of the solution conveying device, and is connected with an auxiliary cavity discharge valve so as to form the openable auxiliary cavity discharge port by controlling the opening and closing of the auxiliary cavity discharge valve;
the discharge hole of the main cavity and the discharge hole of the auxiliary cavity are respectively communicated with a collecting pipe, and the outlet of the collecting pipe is communicated with the inlet of the solution conveying device; in the communicating state, the main chamber bleeder valve and the auxiliary chamber bleeder valve are each opened to communicate the main chamber and the auxiliary chamber through the manifold; in the non-communicating state, the primary chamber vent valve and the secondary chamber vent valve are each closed;
the raw material inlet comprises a gas raw material inlet and a liquid raw material inlet;
the method comprises the following steps:
s1, closing the discharge hole of the main cavity, then enabling gas raw materials and liquid raw materials to enter the main cavity through the raw material inlet, and mixing and preparing through the stirring device to obtain the complex catalyst;
s2, enabling the tank body to be in the communication state, so that at least part of the complex catalyst in the main cavity enters the auxiliary cavity;
s3, enabling the tank body to be in the non-communication state, opening the discharge hole of the main cavity and starting the solution conveying device, so that the complex catalyst in the main cavity is conveyed out of the system through the solution conveying device;
s4, closing the discharge port of the main cavity and opening the discharge port of the auxiliary cavity so as to lead the complex catalyst in the auxiliary cavity to be sent out of the system through the solution conveying device, and simultaneously repeating the step S1 to prepare the complex catalyst in the main cavity;
s5, repeating the steps S1-S4 to enable the solution conveying device to continuously convey the complex catalyst;
in step S2, when the liquid levels of the complex catalyst in the main chamber and the auxiliary chamber are the same, step S3 is performed.
2. The method of claim 1, wherein a divider is provided within the body of the compounding feed tank, the divider having bottom and side edges that are sealingly connected to the interior of the tank to divide the tank into the main and auxiliary chambers arranged side-by-side, the top end of the divider being spaced from the top of the tank; the main cavity discharge port set up in the bottom of main cavity, vice chamber discharge port set up in the bottom of vice chamber.
3. The method of claim 1, wherein a main chamber level gauge and a secondary chamber level gauge are connected to the main chamber and the secondary chamber, respectively.
4. The method according to claim 1, wherein a first raw material inlet pipe is connected to the gas raw material inlet, the first raw material inlet pipe is provided with a gas raw material valve, and a second raw material inlet pipe is connected to the liquid raw material inlet, the second raw material inlet pipe is provided with a liquid raw material valve.
5. The method of claim 1, further comprising a gas distributor disposed within the main chamber and below the agitation device; the inlet of the gas distributor is communicated with the gas raw material inlet, and the outlet of the gas distributor is arranged upwards.
6. The method of claim 1, further comprising:
in step S3, when the liquid complexing the catalyst in the main chamber is low to the lower limit, step S4 is performed;
in step S4, when the level of the complexed catalyst in the sub-chamber is lowered to the lower limit, step S5 is performed.
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CN1676207A (en) * | 2004-03-31 | 2005-10-05 | 中国石油化工股份有限公司 | Continuous reactor suitable for ion liquid catalyst and its use |
CN200995099Y (en) * | 2007-01-15 | 2007-12-26 | 胡杭虎 | Automatic flocculate feeder during filter press flow path |
CN203123863U (en) * | 2013-04-09 | 2013-08-14 | 大庆嘉彩石油科技有限公司 | Automatic dry powder medicament preparing and adding device |
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