CN111056898B - Heavy butter dispersing agent - Google Patents
Heavy butter dispersing agent Download PDFInfo
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- CN111056898B CN111056898B CN201811206995.1A CN201811206995A CN111056898B CN 111056898 B CN111056898 B CN 111056898B CN 201811206995 A CN201811206995 A CN 201811206995A CN 111056898 B CN111056898 B CN 111056898B
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- C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
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- C—CHEMISTRY; METALLURGY
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention relates to a heavy butter dispersing agent, which is mainly used for solving the technical problems that a large amount of butter is easily formed in the alkaline washing process of an alkaline washing tower of an industrial device for preparing olefin from methanol, the butter is further gathered to block a tower tray/filler, a pipeline and a circulating pump, and the stable operation of the alkaline washing tower is influenced. The invention adopts a heavy butter dispersing medicament which comprises the following components: 25-35 parts of component A, 1-5 parts of component B and 5-10 parts of component C in parts by mass; the technical scheme that the component A is a polyol type substance, the component B is an alcohol polymer, and the component C is an imine compound well solves the technical problems, and can be used for dispersing a large amount of heavy butter generated in the alkaline washing process of an alkaline washing tower of an industrial device for preparing olefin from methanol.
Description
Technical Field
The invention belongs to the field of chemical industry, and particularly relates to a medicament for dispersing heavy butter, in particular to a medicament suitable for dispersing heavy butter in an alkaline washing tower of an industrial device for preparing olefin from methanol.
Background
Ethylene and propylene in the low-carbon olefin are important organic chemical raw materials, and the demand is increased year by year. The traditional route for obtaining ethylene and propylene is naphtha cracking, the route depends on petroleum, and the petroleum has the problems of price rising and unstable supply in a short term, and the problem of limited resource storage capacity in a long term and the like. Therefore, in recent years, as a process for producing olefins in place of the naphtha route, a technology for producing lower olefins such as ethylene and propylene from coal or natural gas via methanol (methanol to olefins, MTO or MTP) has attracted considerable attention. In the conventional naphtha cracking route or in the emerging methanol-to-olefin technology, in order to obtain a target product meeting the purity requirement or recycle some unreacted materials, the materials flowing out of the reactor need to be subjected to a series of separation and purification processes, and an alkaline tower for removing acidic impurities is one of key equipment for material purification. The alkaline tower can generate a large amount of butter in the alkaline washing process, although a butter inhibitor is developed in the prior art, in the long-term circulating operation process of the alkaline tower, the more the butter is accumulated, a large amount of heavy butter is accumulated and scaled and adhered to a tower tray/filler, a pipeline and a circulating pump, the alkaline washing effect of the alkaline tower is influenced, even the tower blockage phenomenon can be caused, and the operation period of the alkaline tower is shortened.
At present, a method for solving the problem of generation of a large amount of butter in the alkaline washing tower mainly adds a butter inhibitor. The existing butter inhibitor has obvious effect on reducing the oil content and COD value of alkali liquor in each section of an alkali washing system, but disperses the generated heavy butter in time, so that the heavy butter inhibitor has good flowing property, has no obvious effect of timely discharging the heavy butter out of a tower, and cannot timely and effectively remove the heavy butter or scale accumulated on a tower tray or filler of an alkali washing tower. Patent US 69832 discloses an amino acid-based compound for inhibiting the formation of butter from the caustic wash tower of a plant. Patent CN102531822A inhibits butter in the caustic tower of ethylene plants by a mixture of antioxidant, metal deactivator, polymerization inhibitor, dispersant. However, these patents all have a relatively good effect in inhibiting butter formation, and do not have good dissolution, dispersion and cleaning properties for the butter that has been formed.
In the prior art, when a large amount of generated butter adheres to an alkaline washing tower to cause tower pressure rise and affect the stable operation of the alkaline washing tower, the accumulated heavy butter is dissolved by generally adopting a mode of injecting washing oil, so that the tower pressure drop is in a proper operation range, but the main component of the washing oil is benzene compounds, is toxic and harmful and is listed as a first class carcinogen, so that the use of the washing oil brings many problems to the subsequent treatment of waste alkaline liquor.
The invention provides a medicament for dispersing heavy butter of an alkaline washing tower of an industrial device for preparing olefin from methanol, which aims to solve the problems.
Disclosure of Invention
One of the technical problems to be solved by the invention is that the inlet material of the alkaline washing tower of the methanol-to-olefin industrial device contains higher oxygen-containing compounds such as aldehyde ketone and the like and partially unsaturated hydrocarbon substances, the substances are easy to polymerize to generate butter, and the butter is further gathered and adhered on a tower tray or a filler, thereby providing a medicament for dispersing heavy butter. The heavy butter dispersing agent provided by the method has the advantages of good dissolving and dispersing effects, strong pertinence, relative environmental protection and the like on heavy butter in an alkaline washing tower of an industrial device for preparing olefin from methanol.
The second technical problem to be solved by the invention is to adopt the medicament for dissolving and dispersing heavy butter of the alkaline tower of the methanol-to-olefin industrial device.
In order to solve one of the above technical problems, the technical scheme adopted by the invention is as follows: the heavy butter dispersing agent is characterized by comprising the following components in parts by mass: 25-35 parts of a component A, 1-5 parts of a component B and 5-10 parts of a component C; wherein, the component A is a polyol type substance, the component B is an alcohol polymer, and the component C is an imine compound.
In the above technical solution, the polyol type substance of the component a is preferably one or a mixture of two of sorbitan ester and sucrose ester. More preferably, the mixture of the sorbitan ester and the sucrose ester is prepared from the following components in a mass ratio of (0.25-2): 1.
in the above technical solution, the B component alcohol polymer is preferably one or a mixture of two of polypropylene glycol and polyvinyl alcohol. More preferably a mixture of polypropylene glycol and polyvinyl alcohol, wherein the mass ratio of the polypropylene glycol to the polyvinyl alcohol is (1-4): 1.
in the technical scheme, the component C imine compound is selected from one or a mixture of more of mono-succinimide, bis-succinimide and chlorine-free succinimide. The preferable technical proposal is that the component C is selected from mono-succinimide and chlorine-free succinimide; or the C component is selected from mono-succinimide and bis-succinimide. More preferably, the C component is selected from a mixture of mono-succinimide, di-succinimide and chlorine-free succinimide. The synergistic use of the three imine compounds achieves unexpected effects on the aspect of dispersing heavy butter.
Wherein the mass ratio of the mono-succinimide to the bis-succinimide to the chlorine-free succinimide is as follows: (1-5): (1-2): (1 to 2)
In the above technical scheme, the ratio of the mass parts of the component A, the component B and the component C is preferably: (25 to 30), (1 to 3) and (6 to 8).
To solve the second technical problem, the technical solution adopted by the present invention is as follows: the method for dispersing the heavy butter of the alkaline tower of the methanol-to-olefin industrial device by adopting any one of the agents for dispersing the heavy butter is adopted, the reaction temperature is 30-60 ℃, and the operation pressure is 0.1-3 MPa, the heavy butter dispersing agent is directly or firstly dissolved in a solvent and then continuously injected into the alkaline tower on line together with an alkaline liquor through an alkaline liquor injection line of the alkaline tower in the methanol-to-olefin industrial device, or an injection line is independently arranged and injected into the alkaline tower on line.
In the above technical scheme, the solvent is deionized water; the mass ratio of the total mass of the component A, the component B and the component C in the medicament to the solvent is 1 (1-5).
In the technical scheme, the mass concentration of the oxygen-containing compound in the inlet material of the alkaline washing tower of the industrial device for preparing olefin from methanol is 30-400 ppm.
In the technical scheme, the mass percentage of the added heavy butter dispersing agent to the total mass of the materials at the inlet of the alkaline washing tower is the total mass concentration of the injected heavy butter dispersing agent, and the total mass concentration of the injected heavy butter dispersing agent is preferably 80-300 ppm.
The feed inlet of the alkaline washing tower of the methanol-to-olefin industrial unit contains higher oxygenates such as aldehyde ketone and the like and partially unsaturated hydrocarbons, and the oxygenates and the partially unsaturated hydrocarbons are polymerized under certain conditions to form yellow viscous polymers with certain molecular weight. The invention has the advantages that the added heavy butter dispersing agent containing the component A, the component B and the component C can reduce the viscosity, solubilize and disperse the yellow viscous polymer, so that less heavy butter dispersing agent can achieve better dissolving and dispersing effects.
By adopting the technical scheme of the invention, the paint comprises the following components in parts by mass: 25-35 parts of a component A, 1-5 parts of a component B and 5-10 parts of a component C; wherein, the component A is a polyol type substance, the component B is an alcohol polymer, and the component C is an imine compound. The technical effect that the dispersion rate of the heavy butter reaches 99.66 percent is achieved.
Detailed Description
The process of the present invention is further illustrated below with reference to examples, but the scope of the present invention is not limited thereto.
The alkaline washing conditions of the alkaline washing tower simulation device of the industrial device for preparing olefin from methanol used in the embodiment of the invention are the same as those of the alkaline washing tower simulation device of the industrial device for preparing olefin from methanol used in the comparative example, the operating temperature of the alkaline washing tower is 40 ℃, the operating pressure is 0.138MPa, the alkaline washing tower runs for 2 days without adding a butter inhibitor, a certain amount of butter is gathered on a tower plate, a heavy butter dispersing agent is continuously injected at the inlet of an alkaline liquor circulating pump of the alkaline washing tower, the alkaline washing tower is simulated to run for 5 days continuously, the dissolving and dispersing effects of the heavy butter dispersing agent are measured according to the change of the butter adhesion on the tower plate, and the calculation and the display are as follows.
Butter dispersing ratio (M) 1 -M 2 )/M 1 ×100％
M 1 : amount of butter added before the heavy butter is dispersed into the medicament, g
M 2 : butter amount g after adding heavy butter dispersing agent
[ example 1 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is sorbitan ester; the component B is polypropylene glycol; the component C is mono-succinimide. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the medicaments is applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of the injected heavy butter dispersing agent is 100ppm, and after the continuous operation for 5 days, the butter dispersing rate is calculated to be 97.92%.
[ example 2 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is sucrose ester; the component B is polypropylene glycol; the component C is mono-succinimide. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of agents is applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and the butter dispersing rate is calculated to be 98.10% after the continuous operation is carried out for 5 days.
[ example 3 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 1: 1; the component B is polypropylene glycol; the component C is mono-succinimide. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of agents is applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and the butter dispersing rate is calculated to be 98.24% after the continuous operation is carried out for 5 days.
[ example 4 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester with the mass ratio of 1: 4; the component B is polypropylene glycol; the component C is mono-succinimide. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the medicaments are applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and the calculated butter dispersing rate is 98.29 percent after the continuous operation for 5 days.
[ example 5 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is polypropylene glycol; the component C is mono-succinimide. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the medicaments are applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and the calculated butter dispersing rate is 98.34 percent after the continuous operation for 5 days.
[ example 6 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is polyvinyl alcohol; the component C is mono-succinimide. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the medicaments are applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and the calculated butter dispersing rate is 98.32 percent after the continuous operation for 5 days.
[ example 7 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 4: 1; the component C is mono-succinimide. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of agents is applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and the butter dispersing rate is calculated to be 98.40% after the continuous operation is carried out for 5 days.
[ example 8 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is polypropylene glycol and polyvinyl alcohol, and the mass ratio of the polypropylene glycol to the polyvinyl alcohol is 2: 1; the component C is mono-succinimide. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the medicaments are applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and the calculated butter dispersing rate is 98.42 percent after the continuous operation for 5 days.
[ example 9 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1; the component C is mono-succinimide. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the chemicals is applied to an alkaline washing tower simulation device of an industrial device for preparing olefin from methanol, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and the butter dispersing rate is calculated to be 98.44 percent after the continuous operation for 5 days.
[ example 10 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1; the component C is bis-succinimide. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of agents is applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and the butter dispersing rate is calculated to be 98.39% after the continuous operation is carried out for 5 days.
[ example 11 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1; the component C is non-chlorobutyl diimide. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the medicaments are applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and the calculated butter dispersing rate is 98.35 percent after the continuous operation for 5 days.
[ example 12 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the polypropylene glycol to the polyvinyl alcohol is 1: 1; the component C is a mixture of mono-succinimide and chlorine-free succinimide with the mass ratio of 2: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the medicaments are applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and after the continuous operation for 5 days, the butter dispersing rate is calculated to be 98.48 percent.
[ example 13 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1; the component C is a mixture of mono-succinimide and bis-succinimide, and the mass ratio of the components C is 2: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of agents is applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and the butter dispersing rate is calculated to be 98.47% after the continuous operation is carried out for 5 days.
[ example 14 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and then respectively adding a component A, a component B and a component C into the deionized water according to the mass part ratio of 30:5:10, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1; the component C is a mixture of mono-succinimide, bis-succinimide and chlorine-free succinimide, and the mass ratio of the components is 5:1: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the medicaments is applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of the injected heavy butter dispersing agent is 100ppm, and after the continuous operation for 5 days, the butter dispersing rate is calculated to be 99.00 percent.
[ example 15 ] A method for producing a polycarbonate
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1; the component C is a mixture of mono-succinimide, bis-succinimide and chlorine-free succinimide, and the mass ratio of the components is 1:2: 2. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the medicaments are applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and after the continuous operation for 5 days, the butter dispersing rate is calculated to be 99.14%.
[ example 16 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1; the component C is a mixture of mono-succinimide, bis-succinimide and chlorine-free succinimide, and the mass ratio of the components is 2:1: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of agents is applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and the butter dispersing rate is calculated to be 99.20% after the continuous operation is carried out for 5 days.
[ example 17 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding a component A, a component B and a component C with the mass part ratio of 35:5:5 into the deionized water, wherein the component A is a mixture of sorbitan esters and sucrose esters with the mass ratio of 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1; the component C is a mixture of mono-succinimide, bis-succinimide and chlorine-free succinimide, and the mass ratio of the components is 2:1: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the medicaments is applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of the injected heavy butter dispersing agent is 100ppm, and after the continuous operation for 5 days, the butter dispersing rate is calculated to be 99.15%.
[ example 18 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding a component A, a component B and a component C with the mass ratio of 30:10:5 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester with the mass ratio of 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1; the component C is a mixture of mono-succinimide, bis-succinimide and chlorine-free succinimide, and the mass ratio of the components is 2:1: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the medicaments are applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and after the continuous operation for 5 days, the butter dispersing rate is calculated to be 99.12%.
[ example 19 ]
Adding 135 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester with the mass ratio of 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1; the component C is a mixture of mono-succinimide, bis-succinimide and chlorine-free succinimide, and the mass ratio of the components is 2:1: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the medicaments are applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and after the continuous operation for 5 days, the butter dispersing rate is calculated to be 98.85%.
[ example 20 ]
Adding 225 parts of deionized water into a reaction kettle with a stirring function, and respectively adding a component A, a component B and a component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan esters and sucrose esters with the mass ratio of 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1; the component C is a mixture of single succinimide, double succinimide and chlorine-free succinimide, and the mass ratio of the components is 2:1: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the medicaments is applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of the injected heavy butter dispersing agent is 100ppm, and after the continuous operation for 5 days, the butter dispersing rate is calculated to be 97.92%.
[ example 21 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1; the component C is a mixture of mono-succinimide, bis-succinimide and chlorine-free succinimide, and the mass ratio of the components is 2:1: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of agents is applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 30ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and after the alkaline washing tower is continuously operated for 5 days, the butter dispersing rate is calculated to be 99.60 percent.
[ example 22 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1; the component C is a mixture of single succinimide, double succinimide and chlorine-free succinimide, and the mass ratio of the components is 2:1: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the medicaments are applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 200ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and the calculated butter dispersing rate is 98.80 percent after the continuous operation for 5 days.
[ example 23 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1; the component C is a mixture of mono-succinimide, bis-succinimide and chlorine-free succinimide, and the mass ratio of the components is 2:1: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of agents is applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 400ppm, the total mass concentration of injected heavy butter dispersing agents is 100ppm, and the butter dispersing rate is calculated to be 98.10% after the alkaline washing tower continuously runs for 5 days.
[ example 24 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1; the component C is a mixture of mono-succinimide, bis-succinimide and chlorine-free succinimide, and the mass ratio of the components is 2:1: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the medicaments are applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 200ppm, and the butter dispersing rate is calculated to be 99.45 percent after the continuous operation for 5 days.
[ example 25 ]
Adding 45 parts of deionized water into a reaction kettle with a stirring function, and respectively adding the component A, the component B and the component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester, and the mass ratio of the component A to the sucrose ester is 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1; the component C is a mixture of mono-succinimide, bis-succinimide and chlorine-free succinimide, and the mass ratio of the components is 2:1: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the medicaments are applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, wherein the mass concentration of oxygen-containing compounds of materials at the inlet of the alkaline washing tower is 150ppm, the total mass concentration of injected heavy butter dispersing agents is 300ppm, and after the continuous operation for 5 days, the butter dispersing rate is calculated to be 99.66%.
Comparative example 1
The mass concentration of oxygen-containing compounds of materials at the inlet of an alkaline tower of an industrial device for preparing olefin from methanol is 150ppm, the operating temperature of the alkaline tower is 40 ℃, the operating pressure is 0.138MPa, the materials operate for 2 days without adding a butter inhibitor in the alkaline tower, a certain amount of butter is gathered on a tower plate, a certain cleaning agent is continuously injected at the inlet of an alkaline liquor circulating pump of the alkaline tower, the agent comprises 18g of sodium methyl fatty acid ester sulfonate, 9g of dodecyl dimethyl benzyl ammonium chloride, 4.5g of nonylphenol polyoxyethylene ether, 27g of carbohydrazide and 31.5g of deionized water, the total mass concentration of the injected agent is 100ppm, the continuous operation is carried out for 5 days, and the calculated butter dispersion rate is 96.80%.
Comparative example 2
The mass concentration of oxygen-containing compounds of an inlet material of an alkaline tower of an industrial device for preparing olefin from methanol is 150ppm, the operating temperature of the alkaline tower is 40 ℃, the operating pressure is 0.138MPa, the alkaline tower runs for 2 days without adding a butter inhibitor, a certain amount of butter is gathered on a tower plate, an aldehyde ketone inhibitor is continuously injected at an inlet of an alkaline tower alkali liquor circulating pump, the inhibitor comprises 9g of 2, 6-di-tert-butyl-p-cresol, 9g of N, N-dialkyl amino methylene benzotriazole, 13.5g of ethylene amine, 9g of mono-succinimide and 49.5g of deionized water, the total mass concentration of the injected medicament is 100ppm, the alkaline tower continuously runs for 5 days, and the butter dispersion rate is calculated to be 78.90%.
Comparative example 3
The mass concentration of oxygen-containing compounds of an inlet material of an alkaline tower of an industrial device for preparing olefin from methanol is 150ppm, the operating temperature of the alkaline tower is 40 ℃, the operating pressure is 0.138MPa, the alkaline tower runs for 2 days without adding a butter inhibitor, a certain amount of butter is gathered on a tower plate, an aldehyde ketone inhibitor is continuously injected at an inlet of an alkaline tower alkali liquor circulating pump, the inhibitor comprises 18g of 2, 6-ditert-butyl-p-cresol, 13.5g of 2-mercapto benzothiadiazole sodium, 18g of dimethylaminoethanol, 16.2g of bis-succinimide, 24.3g of deionized water, the total mass concentration of the injected medicament is 100ppm, the alkaline tower runs for 5 days continuously, and the butter dispersion rate is calculated to be 79.23%.
Comparative example 4
The mass concentration of oxygen-containing compounds of an inlet material of an alkaline tower of an industrial device for preparing olefin from methanol is 150ppm, the operating temperature of the alkaline tower is 40 ℃, the operating pressure is 0.138MPa, the alkaline tower runs for 2 days without adding a butter inhibitor, a certain amount of butter is gathered on a tower plate, an aldehyde ketone inhibitor is continuously injected at an inlet of an alkaline liquor circulating pump of the alkaline tower, the inhibitor comprises 18g of N-phenyl-alpha-naphthylamine, 16.2g of 2-mercapto benzothiadiazole sodium, 16.2g of diethylenetriamine, 16.2g of chlorine-free succinimide and 23.4g of deionized water, the total mass concentration of the injected medicament is 100ppm, the alkaline tower runs for 5 days continuously, and the butter dispersion rate is calculated to be 80.00 percent.
Comparative example 5
The mass concentration of oxygen-containing compounds of an inlet material of an alkaline tower of an industrial device for preparing olefin from methanol is 150ppm, the operating temperature of the alkaline tower is 40 ℃, the operating pressure is 0.138MPa, the alkaline tower runs for 2 days without adding a butter inhibitor, a certain amount of butter is gathered on a tower plate, and a medicament formed by the following method is continuously injected at an inlet of an alkaline circulation pump of the alkaline tower. Adding 45 parts of deionized water into a reaction kettle with heating and stirring functions, and then respectively adding the component A and the component B with the mass part ratio of 30:15 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester with the mass ratio of 2: 1; the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the component B is 1: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of agents is applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, the total mass concentration of the injected heavy butter dispersing agent is 100ppm, the continuous operation is carried out for 5 days, and the butter dispersing rate is calculated to be 90.21%.
Comparative example 6
The mass concentration of oxygen-containing compounds of an inlet material of an alkaline tower of an industrial device for preparing olefin from methanol is 150ppm, the operating temperature of the alkaline tower is 40 ℃, the operating pressure is 0.138MPa, the alkaline tower runs for 2 days without adding a butter inhibitor, a certain amount of butter is gathered on a tower plate, and a medicament formed by the following method is continuously injected at an inlet of an alkaline circulation pump of the alkaline tower. Adding 45 parts of deionized water into a reaction kettle with heating and stirring functions, and then respectively adding a component B and a component C with the mass part ratio of 30:15 into the deionized water, wherein the component B is a mixture of polypropylene glycol and polyvinyl alcohol, and the mass ratio of the component B to the polyvinyl alcohol is 1: 1; the component C is a mixture of mono-succinimide, bis-succinimide and chlorine-free succinimide, and the mass ratio of the components is 2:1: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of agents is applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, the total mass concentration of the injected heavy butter dispersing agent is 100ppm, the continuous operation is carried out for 5 days, and the butter dispersing rate is calculated to be 89.18%.
Comparative example 7
The mass concentration of oxygen-containing compounds of an inlet material of an alkaline tower of an industrial device for preparing olefin from methanol is 150ppm, the operating temperature of the alkaline tower is 40 ℃, the operating pressure is 0.138MPa, the alkaline tower runs for 2 days without adding a butter inhibitor, a certain amount of butter is gathered on a tower plate, and a medicament formed by the following method is continuously injected at an inlet of an alkaline circulation pump of the alkaline tower. Adding 45 parts of deionized water into a reaction kettle with heating and stirring functions, and then respectively adding the component A and the component C with the mass part ratio of 30:15 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester with the mass ratio of 2: 1; the component C is a mixture of single succinimide, double succinimide and chlorine-free succinimide, and the mass ratio of the components is 2:1: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the agents is applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, the total mass concentration of the injected heavy butter dispersing agent is 100ppm, the continuous operation is carried out for 5 days, and the calculated butter dispersing rate is 90.33 percent.
Comparative example 8
The mass concentration of oxygen-containing compounds of an inlet material of an alkaline tower of an industrial device for preparing olefin from methanol is 150ppm, the operating temperature of the alkaline tower is 40 ℃, the operating pressure is 0.138MPa, the alkaline tower runs for 2 days without adding a butter inhibitor, a certain amount of butter is gathered on a tower plate, and a medicament formed by the following method is continuously injected at an inlet of an alkaline circulation pump of the alkaline tower. Adding 45 parts of deionized water into a reaction kettle with heating and stirring functions, and then respectively adding a component A, a component B and a component C with the mass part ratio of 30:5:10 into the deionized water, wherein the component A is a mixture of sorbitan ester and sucrose ester with the mass ratio of 2: 1; the component B is polypropylene glycol and polyvinyl alcohol, and the mass ratio of the polypropylene glycol to the polyvinyl alcohol is 1: 1; the component C is a mixture of single succinimide, double succinimide and chlorine-free succinimide, and the mass ratio of the components is 2:1: 1. Stirring for 1 hour, standing for half an hour, and filtering to obtain heavy butter dispersing agent. The group of the agents is applied to an alkaline washing tower simulation device of an industrial methanol-to-olefin device, the total mass concentration of the injected heavy butter dispersing agent is 100ppm, the continuous operation is carried out for 5 days, and the calculated butter dispersing rate is 97.55 percent.
The A component, B component, C component, butter dispersing ratio and the like used in examples 1 to 25 and comparative examples 1 to 8 are shown in Table 1.
In table 1, "mass fraction ratio" means a ratio of parts by mass of the a component, the B component, and the C component; "agent-water ratio" means a mass ratio of the total mass of the A component, the B component and the C component to deionized water; the injection amount is the total mass concentration of the heavy butter dispersing agent, and YHL is the mass concentration of the oxygen-containing compound of the material at the inlet of the alkaline washing tower.
TABLE 1
Claims (8)
1. The heavy butter dispersing agent is characterized by comprising the following components in parts by mass: 25-35 parts of a component A, 1-5 parts of a component B and 5-10 parts of a component C;
the component A is one or a mixture of sorbitan ester and sucrose ester; the component B is one or a mixture of two of polypropylene glycol and polyvinyl alcohol; the C component is selected from one or more of mono-succinimide, di-succinimide and chlorine-free succinimide.
2. A heavy butter dispersing agent according to claim 1 wherein C component is selected from the group consisting of mono-succinimide and chlorine-free succinimide; or the C component is selected from mono-succinimide and bis-succinimide.
3. A heavy butter dispersing agent according to claim 1 wherein component C is selected from the group consisting of a mixture of mono-succinimide, di-succinimide and chlorine-free succinimide.
4. The heavy butter dispersing agent of claim 1 wherein the ratio of parts by mass of the component a, the component B, and the component C is: (25 to 30), (1 to 3) and (6 to 8).
5. A method for dispersing heavy butter oil of an alkaline washing tower of an industrial methanol-to-olefin device adopts any heavy butter oil dispersing agent in claims 1-4, and is characterized in that under the conditions that the reaction temperature is 30-60 ℃ and the operation pressure is 0.1-3 MPa, the heavy butter oil dispersing agent is directly or firstly dissolved in a solvent and then continuously injected into the alkaline washing tower on line together with alkaline liquor through an alkaline liquor injection line of the alkaline washing tower in the industrial methanol-to-olefin device, or an injection line is independently arranged and injected into the alkaline washing tower on line.
6. The method for dispersing heavy butter of alkaline tower of methanol to olefins industrial plant according to claim 5, characterized in that the solvent is deionized water; the mass ratio of the total mass of the component A, the component B and the component C in the medicament to the solvent is 1 (1-5).
7. The method for dispersing the butter of the alkaline washing tower of the methanol-to-olefin industrial device according to claim 5, wherein the mass concentration of the oxygen-containing compound in the inlet material of the alkaline washing tower of the methanol-to-olefin industrial device is 30-400 ppm.
8. The method for dispersing the butter of the alkaline washing tower of the methanol-to-olefin industrial plant according to claim 5, wherein the total mass concentration of the injected heavy butter dispersing agent is 80-300 ppm based on the mass of the added heavy butter dispersing agent.
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| CN106745857A (en) * | 2016-12-13 | 2017-05-31 | 天津市瑞德赛恩新材料开发有限公司 | A kind of water scrubber dirt dispersion agent and its application method |
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| CN106745857A (en) * | 2016-12-13 | 2017-05-31 | 天津市瑞德赛恩新材料开发有限公司 | A kind of water scrubber dirt dispersion agent and its application method |
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