CN106867572A - A kind of compound without phosphorus crude oil metal-chelator - Google Patents
A kind of compound without phosphorus crude oil metal-chelator Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G29/00—Refining of hydrocarbon oils, in the absence of hydrogen, with other chemicals
- C10G29/20—Organic compounds not containing metal atoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/062—Polyethers
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G33/00—Dewatering or demulsification of hydrocarbon oils
- C10G33/04—Dewatering or demulsification of hydrocarbon oils with chemical means
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/201—Impurities
- C10G2300/205—Metal content
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The present invention relates to a kind of stable performance and the compound without phosphorus crude oil metal-chelator of high-efficiency environment friendly, the metal-chelator is by the terpolymer of 30~40wt%, the dicarboxylic acids of 5~20wt%, the ALS analog copolymer of 20~30wt%, the amphitypy ionic crude oil demulsifier of 10~20wt% and the water of 10~15wt% are uniform compound in a kettle. at room temperature, and be obtained after microwave irradiation, terpolymer used by compound tense is by α aminobutene acid blocked polyether reactant monomers, the butenoic acid of 4 hydroxyl 2 and esters of unsaturated carboxylic acids containing vinyl are carried out free-radical polymerized and obtained, its general structure is：
Description
Technical field
The present invention relates to the compound without phosphorus crude oil metal-chelator of one kind, belong to the crude oil depth of crude oil refinery technical field
Preconditioning technique.
Background technology
At present due to the Deep mining of crude oil, the oil quality of crude oil seriously glides, the heaviness in poor quality degree of crude oil
Deepen, the tenor more and more higher in crude oil.It has been generally acknowledged that the metal in crude oil mainly has calcium, iron, magnesium, nickel, vanadium, sodium etc.,
Wherein calcium, iron, magnesium etc. are main exists in the form of oil hydrochlorate, nickel and vanadium be exist in the form of porphyrins based on.
Following process treatment of the presence of these metallic compounds to crude oil has serious harmfulness, is mainly reflected in：(1) metal compound
Thing can deposit the surface and blocking catalyst duct for being attached to catalyst, hinder catalyst to be connect with hydrocarbon compound in crude oil
Touch, cause poisoning or even the inactivation of catalyst；(2) too high tenor can also reduce the selectivity of catalyst, cause catalysis
Cracked product changes；(3) tenor increases can also cause the electric current of electro-desalting workshop section to increase, and energy consumption increases accordingly,
The problems such as corrosion and fouling that tenor is too high to will also result in equipment pipeline etc., increase operation cost.
The metal removal method used in current crude oil refinery industrial research mainly have chemical precipitation method, chelating removal method and
Chemical acidic treatment, the metal as disclosed in Chinese patent literature CN1076473, CN1454967, CN1054261, CN1657594
Removal methods.These methods or use can form the metal in the carboxylic acid compound and crude oil of stable chelate with metallic element
Generation chelate is so as to by the metal removal in crude oil or strong using the oil hydrochlorate generation in organic or inorganic strong acid and crude oil
Sour weak acid displacement reaction by the metal transfer in crude oil to organic or inorganic strong acid, or using can occur with the metal in crude oil
Metal in crude oil is removed out by the precipitating reagent of precipitation in the form of sediment.The metal removal method of above-mentioned use is deposited
It is expensive in many problems, such as high cost；The acid too strong corrosion that can cause equipment pipeline of metal remover, to existing
The requirement of appliance arrangement is too high, and a certain degree of pollution can be also caused to environment；The removal efficiency of the precipitation method is not high, and generation
Sediment as also resulted in the blocking of equipment pipeline without exclusion in time.To sum up, existing metal removal agent is difficult to meet such as
The demand of modern crude oil refinery industry, so, a kind of new without phosphorus crude oil metal-chelator is developed to crude oil refinery industry
Economic benefit and social benefit have great importance.
The content of the invention
Technical problem：It is an object of the invention to provide the compound without phosphorus crude oil metal-chelator of one kind.The composite metal
Chelating agent can effectively remove the metals such as calcium, the iron in crude oil, efficiency high, Phosphateless environmentally friendly, be a kind of new and effective compound
Type crude oil metal-chelator.
Technical scheme：The compound without phosphorus crude oil metal-chelator of one kind of the invention is by terpolymer, dicarboxylic acids, alkene
Propyl sulfonic acid sodium analog copolymer, amphitypy ionic crude oil demulsifier and water are composited, and wherein each component proportion is with weight
Percentages：
At room temperature, after above-mentioned substance is combined uniformly in a kettle., microwave irradiation 5~15 minutes obtains compound without phosphorus
Crude oil metal-chelator, microwave power is 300~900W.
Described terpolymer is by alpha-amido butenoic acid end capped polyether reaction monomers, 4- hydroxyl -2- butenoic acids and contains
Vinyl esters of unsaturated carboxylic acids is carried out free-radical polymerized and obtained, and its general structure is：
Wherein：A is the constitutional repeating unit after the copolymerization of esters of unsaturated carboxylic acids containing vinyl, and degree of polymerization x is 2 for 2~500, y
~500, z are 2~500, and repeat unit m is 3~80.
Described terpolymer, its preparation method is：
Under room temperature, blanket of nitrogen, in terms of the quality of poly glycol monomethyl ether, by 0.05~3 times of poly glycol monomethyl ether matter
The water of the alpha-amido butenoic acid of amount and 0.1~5 poly glycol monomethyl ether quality is added in reactor, with the sulfuric acid of 3~10wt%
After the aqueous solution adjusts pH to be completely dissolved to alpha-amido butenoic acid, poly glycol monomethyl ether is added, be warming up to 80~90 DEG C, microwave irradiation
10~15 minutes, microwave power was 300~800W, obtains alpha-amido butenoic acid end capped polyether reaction monomers, 50 are down in temperature~
After 70 DEG C, by the sulfydryl class chain-transferring agent and 0.1~5 times of polyethyleneglycol first of 0.01~0.5 times of poly glycol monomethyl ether quality
The water of ether quality is added in reactor, and answering for acid ester mixtures and 0.5~5 times of poly glycol monomethyl ether quality is at the uniform velocity added dropwise respectively
Initiator solution is closed, is dripped off in 0.5~4h, temperature is risen into 75~90 DEG C after dripping off continues to react 2~10h, acid esters mixing
Thing is by 0.2~5 times of 4- hydroxyl -2- butenoic acids, 0.2~5 times of poly glycol monomethyl ether quality of poly glycol monomethyl ether quality
Esters of unsaturated carboxylic acids containing vinyl, the water of 0.1~3 times of poly glycol monomethyl ether quality mix at room temperature, it is compound to draw
Hair agent solution is the aqueous solution that concentration is 1~5wt%, and the ternary polymerization that solid content is 20~50wt% is obtained final product after being down to room temperature
Thing.
Described esters of unsaturated carboxylic acids containing vinyl is allyl acetate, acetoacetic acid allyl ester, methacrylic diethyl
One or more in acid esters or formoxyl allyl acetate of combination.
Described composite initiator is TBHP, isopropyl benzene hydroperoxide or di-isopropyl peroxydicarbonate
In two kinds or three combination.
Described sulfydryl class chain-transferring agent is one or more combination in TGA, mercaprol or mercaptopropionic acid.
Described dicarboxylic acids is one or more combination in glutaconate, butanedioic acid, muconic acid or fumaric acid.
Described ALS analog copolymer is the ALS-maleic acid of 3000~8000 low-molecular-weights
Acid anhydride-sodium lignin sulfonate graft copolymer, methacrylic acid-itaconic acid-ALS copolymer or methyl methacrylate
One or more combination in ester-n-butyl acrylate-ALS copolymer.
Described amphitypy ionic crude oil demulsifier is alkyl naphthalene sulfonic acid imidazoline salt form demulsifier, pectination organic silicon polyether
One kind or many in demulsifier, modified alkyl phenolic resin polyether demulsification agent or the polyether type demulsifying agent with xanthans as initiator
Plant combination.
Beneficial effect：The compound without phosphorus crude oil metal-chelator of one kind of the invention has following excellent properties：
(1) the composite type crude oil metal-chelator passes through to the MOLECULE DESIGN of terpolymer and structure control and to poly-
The screening of monomer is closed, gathering and cooperateing with for various functional groups is realized, the degree of functionality of the terpolymer is effectively increased, so that
The sequestering power of the metal-chelator is enhanced, the removal efficiency of metal in crude oil is improve.Adopted in the preparation method of polymer
With microwave irradiation auxiliary law, the esterification yield and ter-polymers of alpha-amido butenoic acid end capped polyether reaction monomers are significantly improved
Yield, while accelerating reaction rate, reduce energy consumption.
(2) the composite type crude oil metal-chelator adds the ternary polymerization that sequestering power is strong, degree of functionality is high in compound tense
Thing and other compound monomers containing the functional group such as sulfonic group, carboxyl or ester group, it is multi-functional gather have it with synergy
The chelating ability of standby stabilization, and element sulphur and nitrogen can form hydrogen bond with the protium in water, increase the metal chelating
The metal ion tolerance of mixture, metal-chelator is also added into amphitypy ionic crude oil demulsifier in compound tense, improves it
Dewatering efficiency, so as to further enhancing the demetalization ability of the metal-chelator.
(3) preparation technology of the composite type crude oil metal-chelator realizes green Phosphateless environmentally friendly, and multi-functional
Synergy and different composite monomer are used cooperatively, and become the compound system with multi-function action, can not only be high
Metal in effect removing crude oil, but also with certain scale inhibition, corrosion inhibition, desalination sewage can be effectively prevented to subsequently setting
Standby corrosion.
Specific embodiment
Embodiment 1：Under 25 DEG C, blanket of nitrogen, during the water of the alpha-amido butenoic acid of 10g and 30g added into reactor, then
After adjusting pH to be completely dissolved to alpha-amido butenoic acid with the aqueous sulfuric acid of 6wt%, 80g poly glycol monomethyl ethers are added, be warming up to
80 DEG C, microwave irradiation 10min, microwave power is 500W.After cooling the temperature to 65 DEG C, by the TGA of 1.2g, the mercapto of 0.4g
The water of base propyl alcohol and 150g is added in reactor, and the composite initiator solution of acid ester mixtures and 40g, 2.5h are at the uniform velocity added dropwise respectively
Inside drip off, after dripping off by temperature adjustment to 80 DEG C continue react 3h, the acid ester mixtures be by 20g 4- hydroxyl -2- butenoic acids,
The water of 30g allyl acetates and 20g is mixed, and composite initiator solution is the aqueous solution that concentration is 2wt%, after being down to room temperature
Obtain final product the terpolymer that solid content is 30.14wt%.
According to terpolymer 35wt%, glutaconate 8wt%, fumaric acid 7wt%, methacrylic acid-itaconic acid-alkene
Propyl sulfonic acid sodium copolymer 25wt%, alkyl naphthalene sulfonic acid imidazoline salt form demulsifier 15wt%, the ratio of deionized water 10wt%
Add in reactor, after being combined uniformly at room temperature, microwave irradiation 8min, microwave power is 500W, you can obtain compound nothing
Phosphorus crude oil metal-chelator, when Calcium in Crude Oil content is 34.2ppm, and iron content is 5.6ppm, its decalcification rate is 92.4%, is taken off
Iron rate is 63.2%.
Embodiment 2：Under 20 DEG C, blanket of nitrogen, during the water of the alpha-amido butenoic acid of 15g and 50g added into reactor, then
After adjusting pH to be completely dissolved to alpha-amido butenoic acid with the aqueous sulfuric acid of 8wt%, 120g poly glycol monomethyl ethers are added, be warming up to
85 DEG C, microwave irradiation 15min, microwave power is 600W.After cooling the temperature to 60 DEG C, by the mercaptopropionic acid of 2.0g, the mercapto of 1.6g
The water of base propyl alcohol and 180g is added in reactor, and the composite initiator solution of acid ester mixtures and 100g is at the uniform velocity added dropwise respectively,
Dripped off in 2.0h, temperature is risen into 75 DEG C after dripping off continues to react 3h, and the acid ester mixtures are by the 4- hydroxyl -2- butylene of 35g
The water of acid, 40g acetoacetic acid allyl esters and 18g is mixed, and composite initiator solution is the aqueous solution that concentration is 1.8wt%,
The terpolymer that solid content is 40.87wt% is obtained final product after being down to room temperature.
According to terpolymer 35wt%, glutaconate 10wt%, butanedioic acid 5wt%, ALS-maleic acid
Acid anhydride-sodium lignin sulfonate graft copolymer 30wt%, pectination organic silicon polyether demulsifier 10wt%, the ratio of deionized water 10%
It is combined uniformly at room temperature after adding reactor, microwave irradiation 6min, microwave power is 700W, you can obtain compound without phosphorus original
Oily metal-chelator, when the calcium content in crude oil is 36.7ppm, and iron content is 4.7ppm, its decalcification rate is 93.9%, deferrization
Rate is 46.3%.
Embodiment 3：Under 30 DEG C, blanket of nitrogen, during the water of the alpha-amido butenoic acid of 10g and 30g added into reactor, then
After adjusting pH to be completely dissolved to alpha-amido butylene acid amide with the aqueous sulfuric acid of 3wt%, 100g poly glycol monomethyl ethers are added, heated up
To 80 DEG C, microwave irradiation 15min, microwave power is 800W, after cooling the temperature to 65 DEG C, by the mercaprol of 2.1g and 180g
Water is added in reactor, and the composite initiator solution of acid ester mixtures and 80g is at the uniform velocity added dropwise respectively, is dripped off in 3.5h, after dripping off
Temperature is risen into 80 DEG C to continue to react 6h, the acid number mixture is by 4- hydroxyl -2- butenoic acids, the 45g methacrylics two of 25g
The water of acetic acid esters and 22g is mixed, and composite initiator solution is the aqueous solution that concentration is 2.5wt%, is obtained final product after being down to room temperature
Solid content is the terpolymer of 44.17wt%.
According to terpolymer 40wt%, hexadiene ethanedioic acid 6wt%, glutaconate 9wt%, methyl methacrylate-
N-butyl acrylate-ALS copolymer 20wt%, the polyether type demulsifying agent 15wt% with xanthans as initiator, go
The ratio of ionized water 10wt% adds reactor, after compound is stirred at room temperature, microwave irradiation 10min, microwave work(
Rate is 900W, you can obtain compound without phosphorus crude oil metal-chelator, and when the calcium content in crude oil is 35.2ppm, iron content is
5.8ppm, when, its decalcification rate is 96.4%, deferrization rate 63.5%.
Embodiment 4：Under 15 DEG C, blanket of nitrogen, during the water of the alpha-amido butenoic acid of 20g and 60g added into reactor, then
After adjusting pH to be completely dissolved to alpha-amido butenoic acid with the aqueous sulfuric acid of 10wt%, 150g poly glycol monomethyl ethers are added, heated up
To 90 DEG C, microwave irradiation 10min, microwave power is 500W, after cooling the temperature to 70 DEG C, by the TGA of 2.1g, 1.4g
The water of mercaprol, the mercaptopropionic acid of 0.7g and 200g is added in reactor, difference at the uniform velocity dropwise addition acid ester mixtures and 120g
Composite initiator solution, drips off in 4h, and temperature is risen into 90 DEG C after dripping off continues to react 8h, and the acid ester mixtures are by 35g
The water of 4- hydroxyl -2- butenoic acids, 45g formoxyls allyl acetate and 30g is mixed, and composite initiator solution concentration is
The aqueous solution of 2.5wt%, the terpolymer that solid content is 48.68wt% is obtained final product after being down to room temperature.
According to terpolymer 35wt%, fumaric acid 5wt%, butanedioic acid 5wt%, glutaconate 5wt%, metering system
Acid-itaconic acid-ALS copolymer 25wt%, modified alkyl phenolic resin polyether demulsification agent 15wt%, deionized water
In the ratio input reactor of 10wt%, be combined at room temperature it is uniform after, microwave irradiation 12min, under microwave power is 550W, i.e.,
Compound without phosphorus crude oil metal-chelator is can obtain, when the calcium content in crude oil is 37.4ppm, and iron content is 6.4ppm, its
Decalcification rate is 97.1%, and deferrization rate is 64.3%.
Embodiment 5：Under 10 DEG C, blanket of nitrogen, during the water of the alpha-amido butenoic acid of 40g and 120g added into reactor, so
After adjusting pH to be completely dissolved to alpha-amido butenoic acid with the aqueous sulfuric acid of 6wt% afterwards, 180g poly glycol monomethyl ethers are added, heated up
To 80 DEG C, microwave irradiation 15min, microwave power is 600W, after cooling the temperature to 65 DEG C, by the mercaprol of 2.8g, 1.4g
The water of mercaptopropionic acid and 250g is added in reactor, and the composite initiator solution of acid ester mixtures and 150g is at the uniform velocity added dropwise respectively,
Dripped off in 4h, temperature is risen into 80 DEG C after dripping off continues to react 10h, and the acid ester mixtures are by the 4- hydroxyl -2- butylene of 55g
The water of acid, 60g acetoacetic acid allyl esters and 45g is mixed, and composite initiator solution concentration is the aqueous solution of 3.0wt%, drop
The terpolymer that solid content is 41.38wt% is obtained final product after to room temperature.
According to terpolymer 30wt%, fumaric acid 5wt%, butanedioic acid 5wt%, muconic acid 10wt%, methyl
Methyl acrylate-acrylic acid N-butyl-ALS copolymer 1 0wt%, methacrylic acid-itaconic acid-allyl sulphonic acid
Sodium copolymer 20wt%, modified alkyl phenolic resin polyether demulsification agent 10wt%, the ratio input reaction of deionized water 10wt%
In kettle, uniform rear microwave irradiation 15min is combined at room temperature, microwave power is 600W, can obtain compound without phosphorus crude oil afterwards
Metal-chelator, when the calcium content in crude oil is 34.4ppm, and iron content is 5.4ppm, its decalcification rate is 96.9%, deferrization rate
It is 58.6%.
Embodiment 6：Under 10 DEG C, blanket of nitrogen, during the water of the alpha-amido butenoic acid of 15g and 50g added into reactor, then
After adjusting pH to be completely dissolved to alpha-amido butenoic acid with the aqueous sulfuric acid of 3wt%, 60g poly glycol monomethyl ethers are added, be warming up to
70 DEG C, microwave irradiation 12min, microwave power is 500W, after cooling the temperature to 65 DEG C, by the TGA of 1.2g, the mercapto of 0.8g
The water of base propyl alcohol and 40g is added in reactor, and the composite initiator solution of acid ester mixtures and 80g, 2.5h are at the uniform velocity added dropwise respectively
Inside drip off, after dripping off by temperature rise to 75 DEG C continue react 6h, the acid ester mixtures be by 15g 4- hydroxyl -2- butenoic acids,
The water of 20g methacrylics diacetate esters and 25g is mixed, and composite initiator solution concentration is the aqueous solution of 3wt%, is down to
The terpolymer that solid content is 37.93wt% is obtained final product after room temperature.
According to terpolymer 35wt%, muconic acid 5wt%, butanedioic acid 5wt%, glutaconate 5wt%, pi-allyl
Sodium sulfonate-maleic anhydride-sodium lignin sulfonate graft copolymer 15wt%, methacrylic acid-itaconic acid-ALS are common
In polymers 10wt%, modified alkyl phenolic resin polyether demulsification agent 15wt%, the ratio input reactor of deionized water 10wt%,
Be combined at room temperature it is uniform after microwave irradiation 6min, under microwave power is 800W, can obtain compound without phosphorus crude oil metal afterwards
Chelating agent, when the calcium content in crude oil is 35.8ppm, and iron content is 6.1ppm, its decalcification rate is 98.3%, and deferrization rate is
61.7%.
The performance test methods of above-mentioned a kind of compound without phosphorus crude oil metal-chelator are：
The crude oil that performance evaluation of the present invention is used is lu ning pipeline transportation of crude oil, and its calcium content is 30~40ppm, and iron content is
5~7ppm.Take a certain amount of crude oil, injection accounts for the water of its mass fraction 6wt%, it is incubated 20 in 80~90 DEG C of waters bath with thermostatic control~
30min, the blends of crudes after insulation is transferred in crude oil electric desalting metal can, adds the crude oil metal-chelator of 100ppm
Electro-desalting metal can is placed in electric operated thermostatic oscillator afterwards vibrates 30~40min of mixing, make crude oil abundant with metal-chelator
Mix.Electro-desalting metal can is placed in electro-desalting instrument, the making alive after temperature rises to 130 DEG C, controls forceful electric power field intensity
1200V/cm, 10~15min of residence time, light current field intensity 500V/cm, 15~20min of residence time close electricity after terminating
Pressure, is allowed to rest for 30~60min of sedimentation.After temperature is cooled to room temperature, the sewage discharge after desalination is weighed after being taken off through electricity
Crude oil is carbonized and ashing treatment, and specific method refers to GB/T 508-91, wiring solution-forming after treatment, using inductive etc.
Ionomer emission spectrum method (ICP) determines tenor therein, calculates the metal removal rate in crude oil.
Claims (8)
1. a kind of compound without phosphorus crude oil metal-chelator, it is characterised in that the metal-chelator is by terpolymer, dicarboxyl
Acid, ALS analog copolymer, amphitypy ionic crude oil demulsifier and water are composited, wherein each component proportion with
Percentage by weight meter：
Described terpolymer is by alpha-amido butenoic acid end capped polyether reaction monomers, 4- hydroxyl -2- butenoic acids and containing ethene
Base esters of unsaturated carboxylic acids is carried out free-radical polymerized and obtained, and its general structure is：
Wherein：A is the constitutional repeating unit after the copolymerization of esters of unsaturated carboxylic acids containing vinyl, degree of polymerization x be 2~500, y be 2~
500, z is 2~500, and repeat unit m is 3~80.
2. a kind of compound without phosphorus crude oil metal-chelator as claimed in claim 1, it is characterised in that described ternary polymerization
Thing, its preparation method is：
Under room temperature, blanket of nitrogen, in terms of the quality of poly glycol monomethyl ether, by 0.05~3 times of poly glycol monomethyl ether quality
The water of alpha-amido butenoic acid and 0.1~5 poly glycol monomethyl ether quality is added in reactor, and the sulfuric acid with 3~10wt% is water-soluble
Liquid is adjusted after pH is completely dissolved to alpha-amido butenoic acid, adds poly glycol monomethyl ether, is warming up to 80~90 DEG C, and microwave irradiation 10~
15 minutes, microwave power was 300~800W, obtains alpha-amido butenoic acid end capped polyether reaction monomers, and 50~70 DEG C are down in temperature
Afterwards, by the sulfydryl class chain-transferring agent and 0.1~5 times of poly glycol monomethyl ether matter of 0.01~0.5 times of poly glycol monomethyl ether quality
The water of amount is added in reactor, acid ester mixtures at the uniform velocity is added dropwise respectively and 0.5~5 times of the compound of poly glycol monomethyl ether quality is drawn
Hair agent solution, drips off in 0.5~4 hour, and temperature is risen into 75~90 DEG C after dripping off continues to react 2~10 hours, and the acid esters is mixed
Compound is by 0.2~5 times of 4- hydroxyl -2- butenoic acids, 0.2~5 times of poly glycol monomethyl ether matter of poly glycol monomethyl ether quality
The esters of unsaturated carboxylic acids containing vinyl of amount, the water of 0.1~3 times of poly glycol monomethyl ether quality are mixed at room temperature, are combined
Initiator solution is the aqueous solution that concentration is 1~5wt%, and the ternary polymerization that solid content is 20~50wt% is obtained final product after being down to room temperature
Thing.
3. compound without phosphorus crude oil metal-chelator according to claim 2, it is characterised in that it is described containing vinyl not
Saturated carboxylic acid ester is in allyl acetate, acetoacetic acid allyl ester, methacrylic diacetate esters or formoxyl allyl acetate
One or more of combination.
4. compound without phosphorus crude oil metal-chelator according to claim 2, it is characterised in that described composite initiator
It is two kinds or the combination of three in TBHP, isopropyl benzene hydroperoxide or di-isopropyl peroxydicarbonate.
5. compound without phosphorus crude oil metal-chelator according to claim 2, it is characterised in that described sulfydryl class chain turns
Shifting agent is one or more combination in TGA, mercaprol or mercaptopropionic acid.
6. compound without phosphorus crude oil metal-chelator according to claim 1, it is characterised in that described dicarboxylic acids is penta
One or more combination in enedioic acid, butanedioic acid, muconic acid or fumaric acid.
7. compound without phosphorus crude oil metal-chelator according to claim 1, it is characterised in that described allyl sulphonic acid
Sodium analog copolymer be 3000~8000 low-molecular-weights ALS-maleic anhydride-sodium lignin sulfonate graft copolymer,
Methacrylic acid-itaconic acid-ALS copolymer or methyl methacrylate-n-butyl acrylate-allyl sulphonic acid
One or more combination in sodium copolymer.
8. compound without phosphorus crude oil metal-chelator according to claim 1, it is characterised in that described amphitypy ionic
Crude oil demulsifier is alkyl naphthalene sulfonic acid imidazoline salt form demulsifier, pectination organic silicon polyether demulsifier, modified alkyl phenolic resin
One or more combination in polyether demulsification agent or the polyether type demulsifying agent with xanthans as initiator.
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Cited By (3)
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| CN110643386A (en) * | 2019-09-20 | 2020-01-03 | 南京江宇新材料科技有限公司 | Compound crude oil metal chelating agent |
| CN111662743A (en) * | 2019-03-07 | 2020-09-15 | 陕西省石油化工研究设计院 | Metal ion chelating agent and preparation method thereof |
| CN112175661A (en) * | 2020-11-19 | 2021-01-05 | 南京江宇新材料科技有限公司 | Low-temperature-resistant crude oil metal chelating agent and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111662743A (en) * | 2019-03-07 | 2020-09-15 | 陕西省石油化工研究设计院 | Metal ion chelating agent and preparation method thereof |
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| CN112175661A (en) * | 2020-11-19 | 2021-01-05 | 南京江宇新材料科技有限公司 | Low-temperature-resistant crude oil metal chelating agent and preparation method thereof |
| CN112175661B (en) * | 2020-11-19 | 2023-02-28 | 南京江宇新材料科技有限公司 | Low-temperature-resistant crude oil metal chelating agent and preparation method thereof |
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| CN106867572B (en) | 2018-09-21 |
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