CN106398748A - Hydrocarbon oil deferrization agent and hydrocarbon oil deferrization method - Google Patents
Hydrocarbon oil deferrization agent and hydrocarbon oil deferrization method Download PDFInfo
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Abstract
The present invention relates to the field of hydrocarbon oil deferrization, and discloses a hydrocarbon oil deferrization agent, which comprises an organic acid, a polyether modified silicone oil, a thiamine ester and/or sulfurnitride ester, and a solvent. The invention further discloses a hydrocarbon oil deferrization method, which comprises that hydrocarbon oil contacts a hydrocarbon oil deferrization agent under an electrical desalting condition, wherein the hydrocarbon oil deferrization agent is the hydrocarbon oil deferrization agent of the present invention. According to the present invention, the hydrocarbon oil deferrization agent has the good removing effect for the iron in the hydrocarbon oil, is suitable for the high iron content hydrocarbon oil, can effectively remove the oil-soluble iron and the non-oil-soluble iron in the hydrocarbon oil, and cannot cause the local enrichment of the metal in the after-removing hydrocarbon; and the deferrization agent has characteristics of low consumption, good effect and simple use, can achieve the efficient iron removal while the desalting and the dehydrating are performed through the existing electric desalting process condition, and is easy to industrially promote and apply.
Description
Technical field
The present invention relates to hydrocarbon ils deferrization field, in particular it relates to a kind of hydrocarbon ils deferrization agent and adopt this hydrocarbon ils
The method that deferrization agent carries out hydrocarbon ils deferrization.
Background technology
In recent years, with the exploitation of the unconventional energy resource such as fine and close oil, shale oil, and crude oil with poor quality and slag
Being continuously increased of oily processing capacity, metals in hydrocarbon oil content ascensional range is larger, for following process and use
Harm increasingly highlight.The wherein toxic action to catalytic cracking unit, heavy oil hydrogenation equipment catalyst for the ferrum
Larger, catalyst can be made to cohere and build up, lead to catalyst structure to destroy, inactivate, fluidizing extremely, very
To producing permanent poisoning, ferrum also can promote the burn into heating of atmospheric and vacuum distillation column overhead and condenser system
Boiler tube and heat exchange equipment fouling etc..Accordingly, it would be desirable to deferrization is carried out to hydrocarbon ils.
Ferrum in hydrocarbon ils can be divided into oil-soluble ferrum and non-oil-soluble ferrum, the analysis method of ferrum type referring to
《Fe content distribution and its existing forms in crude oil and residual oil》(Gao Xin etc., petroleum journal (PETROLEUM PROCESSING),
The 2nd phase of volume 30, in April, 2014) in 1.4.1, oil-soluble iron content is deducted by total iron content and obtains
To water-soluble iron content, more precisely should be non-oil-soluble iron content and (include water-fast ferrum precipitation
Thing).
It has been recognized that the key of chemical method deferrization is to be converted into oil-soluble ferrum by adding deferrization agent
Non- oil-soluble ferrum, the excessively conventional electric desalting water washing method of non-oil-soluble Tie Tong can remove.Therefore, existing skill
Art research emphasis are the removing of oil-soluble ferrum.Patent CN1982413A describes one kind by organic carboxyl acid
Metal remover with organic phospho acid composition；CN101314728A describes a kind of hydrocarbons raw oil deferrization
Method, using the deferrization agent of nitrogen-containing compound and organic acid mixed preparing, has stronger iron ion
Sequestering power；Crude oil metal remover disclosed in patent CN103937529A by sulfonic compound, ammonium salt,
Isocyanates, corrosion inhibiter and solvent composition；Disclosed in CN101215477A, crude oil metal remover is by carbonic acid
Ester, organic acid, nonionic surfactant, chelating agen, carbamide compounds and solvent composition.Above-mentioned public affairs
The deferrization agent opened has good removal effect for crude oil oil-soluble ferrum.
However, general in hydrocarbon ils also have the salt contained by water being scattered in oil with emulsified state, and outstanding
Float on the superfine ferrous mineral microgranule in oil, these non-oil-soluble ferrum are easy to and profit System forming
Highly stable emulsion, and the increasing with oil extraction difficulty, and fine and close oil, shale oil etc.
The exploitation of unconventional energy resource, in hydrocarbon ils, non-oil-soluble iron content increases, and conventional electric desalting water washing method is difficult to
Removed.Additionally, after the hydrocarbon ils rich in oil-soluble ferrum is using conventional deferrization agent, oil-soluble ferrum is changed
For non-oil-soluble iron compound, but aqueous phase may not necessarily be transferred to completely, the upper strata crude oil ferrum typically resulting in contains
Amount substantially reduces, and nearby crude oil iron content is still very high for rag layer, illustrate non-oil-soluble ferrum not by
Effectively remove, therefore develop new and effective deferrization agent and deferrization method is most important.
Content of the invention
The invention aims to deferrization agent deferrization effect is poor in solution prior art, it is particularly difficult to remove
The problem of the non-oil-soluble ferrum in hydrocarbon ils, provides a kind of new hydrocarbon ils deferrization agent, and adopts this hydrocarbon ils deferrization
The method that agent carries out hydrocarbon ils deferrization.
The present inventor finds under study for action, hydrocarbon ils deferrization agent contain organic acid, polyether modified silicon oil,
Thiamine ester and/or sulfur nitrogen ester and solvent, it is possible to increase deferrization rate, can effectively remove the oil in hydrocarbon ils
Dissolubility ferrum and non-oil-soluble ferrum.
Therefore, to achieve these goals, on the one hand, the invention provides a kind of hydrocarbon ils deferrization agent, institute
State hydrocarbon ils deferrization agent and contain organic acid, polyether modified silicon oil, thiamine ester and/or sulfur nitrogen ester and solvent.
Preferably, on the basis of the gross weight of described hydrocarbon ils deferrization agent, the content of organic acid is 5-30 weight
Amount %, the content of polyether modified silicon oil is 10-50 weight %, and the total content of thiamine ester and sulfur nitrogen ester is 5-30
Weight %, the content of solvent is 10-50 weight %；It is highly preferred that the gross weight with described hydrocarbon ils deferrization agent
On the basis of amount, the content of organic acid is 5-30 weight %, polyether modified silicon oil, thiamine ester and sulfur nitrogen ester
Content sum is 40-60 weight %, and the content of solvent is 20-50 weight %.
Preferably, described organic acid is oxalic acid, maleic acid, citric acid, 1-hydroxy ethylidene-1,1-diphosphonic acid and 2-
At least one in HPAA.
Preferably, described thiamine ester is O- isopropyl-N- ethyl thionic carbamate and/or O- isobutyl
By carbamate, described sulfur nitrogen ester is N to base-N- allyl sulfide, N- dimethyl dithiocarbamic acid first
Ester and/or N, N- second, n-butyl dithiocarbamate methyl ester.
Preferably, described solvent is the mixed solution of alcohol and water, and alcohol is methanol, ethanol, ethylene glycol and different
At least one in propanol, the weight of alcohol and water is than for 1:2-4.
Preferably, in the hydrocarbon ils that described hydrocarbon ils deferrization agent is applied, the content of ferrum is 10-300ug/g.
Preferably, described hydrocarbon ils is mineral oil and its distillate, more preferably crude oil, residual oil, depitching
At least one in oil, shale oil, fine and close oil and liquefied coal coil.
Second aspect, present invention also offers a kind of method of hydrocarbon ils deferrization, methods described includes：In electricity
Under the conditions of desalination, hydrocarbon ils is contacted with hydrocarbon ils deferrization agent and carries out deferrization, described hydrocarbon ils deferrization agent is as above institute
The hydrocarbon ils deferrization agent stated.
Preferably, with respect to 1g hydrocarbon ils, the consumption of described hydrocarbon ils deferrization agent is 10-1000 μ g, more preferably
For 20-300 μ g, still more preferably for 80-150 μ g.
Preferably, described electro-desalting condition includes：Electrostatic field temperature is 100-150 DEG C, and electric field intensity is
200-2000V/cm, more preferably 300-1000V/cm.
The hydrocarbon ils deferrization agent of the present invention, has good removal effect to the ferrum in hydrocarbon ils, to high Fe content
Hydrocarbon ils is equally applicable, can effectively remove the oil-soluble ferrum in hydrocarbon ils and non-oil-soluble ferrum, not result in de-
The Local enrichment of metals in hydrocarbon oil afterwards；The deferrization agent consumption of the present invention is low, effect is good, use is simple, borrows
Help existing Process Conditions for Electrostatic Desalting while desalting and dewatering, you can realize the efficient removal of metallic iron, easily
In commercial introduction application.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Specific embodiment
Hereinafter the specific embodiment of the present invention is described in detail.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explains the present invention, is not limited to the present invention.
On the one hand, the invention provides a kind of hydrocarbon ils deferrization agent, this hydrocarbon ils deferrization agent contains organic acid, poly-
Ether modified silicon oil, thiamine ester and/or sulfur nitrogen ester and solvent.
It is preferable that on the basis of the gross weight of hydrocarbon ils deferrization agent, the content of organic acid is 5-30 in the present invention
Weight %, the content of polyether modified silicon oil is 10-50 weight %, and the total content of thiamine ester and sulfur nitrogen ester is
5-30 weight %, the content of solvent is 10-50 weight %；It is highly preferred that the gross weight with hydrocarbon ils deferrization agent
On the basis of amount, the content of organic acid is 5-30 weight %, polyether modified silicon oil, thiamine ester and sulfur nitrogen ester
Content sum is 40-60 weight %, and the content of solvent is 20-50 weight %.Under this preferable case,
Deferrization rate can be improved further.
In the present invention, when hydrocarbon ils deferrization agent contains thiamine ester and contains sulfur nitrogen ester again, for the two each
Content no particular/special requirement, as long as the content sum of the two meets above-mentioned requirements.
In the present invention, organic acid is preferably oxalic acid, maleic acid, citric acid, 1-hydroxy ethylidene-1,1-diphosphonic acid and 2-
At least one in HPAA.
In the present invention, polyether modified silicon oil is one kind of polyethers and polydimethylsiloxane graft copolymerization
Organosilicon nonionic surfactant, has low surface tension and good moistening, permeance property, this
In bright, for polyether modified silicon oil no particular/special requirement, polyether modified silicon oil commonly used in the art can be adopted,
It is for instance possible to use YNE is serial, the polyether modified silicon oil such as XHG series, Silok series.
In the present invention, thiamine ester refers to that the sulfydryl in xanthic acid molecule is replaced by alkyl amino and forms, that is,
Thionic carbamate, in the present invention, thiamine ester can be excellent using various thiamine esters commonly used in the art
Elect O- isopropyl-N- ethyl thionic carbamate asAnd/or O- isobutyl
Base-N- allyl sulfide is by carbamateSulfur nitrogen ester is
The metal ion referring to sulfur nitrogen class collecting agent is formed by the derivant replacement of alkyl or alkyl, i.e. amino dithio
Formic acid esters, in the present invention, sulfur nitrogen ester can be using various sulfur nitrogen esters commonly used in the art, preferably N, N-
Dimethyl dithiocarbamic acid methyl esterAnd/or N, N- di-n-butyl dithio ammonia
Base methyl formate
In the present invention, solvent is preferably the mixed solution of alcohol and water, and alcohol is preferably methanol, ethanol, second two
At least one in alcohol and isopropanol, the weight ratio preferably 1 of alcohol and water:2-4.
In the present invention, " hydrocarbon ils that hydrocarbon ils deferrization agent is applied " refers to be suitable for the hydrocarbon ils deferrization of the present invention
Agent carries out the hydrocarbon ils of deferrization, and the hydrocarbon ils deferrization agent of the present invention is applied to the higher hydrocarbon ils of iron content, for example,
In the hydrocarbon ils that the hydrocarbon ils deferrization agent of the present invention is applied, the content of ferrum can be 10-300ug/g.For hydrocarbon ils
Species no particular/special requirement, can be for example mineral oil and its distillate, such as crude oil, residual oil, depitching
At least one in oil, shale oil, fine and close oil and liquefied coal coil.
The preparation method no particular/special requirement of the hydrocarbon ils deferrization agent of the present invention, as long as each component mix homogeneously is
Can get hydrocarbon ils deferrization agent.
Second aspect, present invention also offers a kind of method of hydrocarbon ils deferrization, the method includes：De- in electricity
Under the conditions of salt, hydrocarbon ils is contacted with hydrocarbon ils deferrization agent and carries out deferrization, described hydrocarbon ils deferrization agent is as described above
Hydrocarbon ils deferrization agent.
In the present invention, with respect to 1g hydrocarbon ils, the consumption of hydrocarbon ils deferrization agent is preferably 10-1000 μ g, more excellent
Elect 20-300 μ g as, still more preferably for 80-150 μ g.
In the present invention, electro-desalting condition preferably includes：Electrostatic field temperature is 100-150 DEG C, electric field intensity
For 200-2000V/cm, more preferably 300-1000V/cm.
In the present invention, in order that the ferrum in hydrocarbon ils preferably removes, that is, in order that hydrocarbon ils deferrization agent preferably
Play a role, add demulsifier preferably in hydrocarbon ils, then carry out deferrization again, for example, it is possible at 70-90 DEG C
After hydrocarbon ils is preheated, add distilled water and demulsifier, then carry out deferrization again.Consumption for demulsifier
No particular/special requirement, can be using the conventional consumption in this area, for example, with respect to 1g hydrocarbon ils, demulsifier
Consumption can be 40-60 μ g.
The hydrocarbon ils deferrization method of the present invention can be carried out in conventional Crude Desalting System, for example, can adopt
Deferrization agent is mixed by the mode of former dose of injection with hydrocarbon ils, and decanting point is referred to the injection mode of demulsifier,
Both the feed line before mixing valve or static mixer can be injected into it is also possible to be injected into electro-desalting at different levels
Waterflood-transmission line, enters the electrical desalter that temperature is 100-150 DEG C, after staying for some time, makees in electric field
With under carry out oil-water separation, in hydrocarbon ils, the metallic element such as ferrum enters aqueous phase or in aqueous phase aggregate and precipitate, enters
Sewerage.
Embodiment
The present invention is further illustrated for below example, but and is not so limited the present invention.
In the following Examples and Comparative Examples：
The method measuring iron content in oil sample：GB/T 18608-2012
Deferrization rate=(iron content in oil sample to be measured after original total iron content-deferrization in hydrocarbon ils)/hydrocarbon ils Central Plains
Total iron content × 100% coming
Preparation example 1
This preparation example is used for the hydrocarbon ils deferrization agent of the present invention is described.
By the YNE5211 of the citric acid of 5 weight portions, 15 weight portions, (being purchased from Nanjing Yi Nuoen chemical industry has
Limit company), the O- isopropyl-N- ethyl thionic carbamate of 30 weight portions, the second of 12.5 weight portions
The water mix homogeneously of alcohol and 37.5 weight portions, obtains hydrocarbon ils deferrization agent A1.
Preparation example 2
This preparation example is used for the hydrocarbon ils deferrization agent of the present invention is described.
By the YNE408 of the maleic acid of 15 weight portions, 20 weight portions, (being purchased from Nanjing Yi Nuoen chemical industry has
Limit company), the O- isobutyl group-N- allyl sulfide of 20 weight portions by carbamate, 15 weight portions first
The water mix homogeneously of alcohol and 30 weight portions, obtains hydrocarbon ils deferrization agent A2.
Preparation example 3
This preparation example is used for the hydrocarbon ils deferrization agent of the present invention is described.
By the Silok2235 of the oxalic acid of 30 weight portions, 40 weight portions, (being purchased from Guangzhou Si Luoke chemistry has
Limit company), the O- isopropyl-N- ethyl thionic carbamate of 10 weight portions, the isopropanol of 4 weight portions
With the water mix homogeneously of 16 weight portions, obtain hydrocarbon ils deferrization agent A3.
Preparation example 4
This preparation example is used for the hydrocarbon ils deferrization agent of the present invention is described.
By the 1-hydroxy ethylidene-1,1-diphosphonic acid of 5 weight portions, 15 weight portions Silok2250 (be purchased from Guangzhou this
Luo Ke Chemical Co., Ltd.), the N of 30 weight portions, N- dimethyl dithiocarbamic acid methyl ester, 12.5 weights
The amount ethylene glycol of part and the water mix homogeneously of 37.5 weight portions, obtain hydrocarbon ils deferrization agent A4.
Preparation example 5
This preparation example is used for the hydrocarbon ils deferrization agent of the present invention is described.
The XHG248 of the 2- HPAA of 15 weight portions, 30 weight portions (is purchased from Zhejiang new
Anhua work Group Plc), the N of 25 weight portions, N- second, n-butyl dithiocarbamate methyl ester,
The water mix homogeneously of the methanol of 10 weight portions and 20 weight portions, obtains hydrocarbon ils deferrization agent A5.
Preparation example 6
This preparation example is used for the hydrocarbon ils deferrization agent of the present invention is described.
The XHG278 of the citric acid of 20 weight portions, 40 weight portions (is purchased from Zhejiang and newly pacifies Chemical Group
Limited company), the N of 20 weight portions, N- dimethyl dithiocarbamic acid methyl ester, 4 weight portions
The water mix homogeneously of isopropanol and 16 weight portions, obtains hydrocarbon ils deferrization agent A6.
Preparation example 7
This preparation example is used for the hydrocarbon ils deferrization agent of the present invention is described.
Method according to preparation example 3 prepares hydrocarbon ils deferrization agent, and except for the difference that, the consumption of Silok2235 is
20 weight portions, the consumption of isopropanol is 8 weight portions, and the consumption of water is 32 weight portions, obtains hydrocarbon ils and takes off
Chalybeate A7.
Contrast preparation example 1
By the 1-hydroxy ethylidene-1,1-diphosphonic acid of 30 weight portions, the citric acid of 30 weight portions, 10 weight portions ethanol
With the water mix homogeneously of 30 weight portions, obtain hydrocarbon ils deferrization agent D1.
Embodiment 1
The present embodiment is used for the hydrocarbon ils deferrization method of the present invention is described.
100g hydrocarbon ils A, B, C (property is shown in Table 1) is taken to be respectively put in 150mL beaker respectively, and
Each proceed as follows：After 80 DEG C of preheatings, 10g distilled water and 5mg demulsifier is added (to be purchased from
Guangzhou Zhenqing Environmental Technology Co., Ltd., GT-D06 crude oil demulsifier, similarly hereinafter), add 10mg hydrocarbon ils
Deferrization agent A1, mix homogeneously, be placed in after being then sealed against 120 DEG C, electric field intensity be 500V/cm
Electrostatic field in process 30min carry out oil-water separation, cool the temperature to 80 DEG C after process, take respectively
Layer oil sample (oil sample of oil reservoir the top 1cm thickness) and middle level oil sample (the above 1cm of oil-water interfaces layer
The oil sample of thickness) measure iron content, and calculate deferrization rate respectively, it is designated as upper strata deferrization rate and middle level deferrization
Rate, the results are shown in Table 2.
Embodiment 2
The present embodiment is used for the hydrocarbon ils deferrization method of the present invention is described.
100g hydrocarbon ils A, B, C (property is shown in Table 1) is taken to be respectively put in 150mL beaker respectively, and
Each proceed as follows：After 70 DEG C of preheatings, add 10g distilled water and 4mg demulsifier, add
8mg hydrocarbon ils deferrization agent A2, mix homogeneously, be placed in after being then sealed against 100 DEG C, electric field intensity be
Process 30min in the electrostatic field of 300V/cm and carry out oil-water separation, after process, cool the temperature to 70 DEG C,
Take respectively upper strata oil sample (oil sample of oil reservoir the top 1cm thickness) and middle level oil sample (oil-water interfaces layer with
The oil sample of upper 1cm thickness) measure iron content, and respectively calculate deferrization rate, be designated as upper strata deferrization rate and in
Layer deferrization rate, the results are shown in Table 2.
Embodiment 3
The present embodiment is used for the hydrocarbon ils deferrization method of the present invention is described.
100g hydrocarbon ils A, B, C (property is shown in Table 1) is taken to be respectively put in 150mL beaker respectively, and
Each proceed as follows：After 90 DEG C of preheatings, add 10g distilled water and 6mg demulsifier, add
15mg hydrocarbon ils deferrization agent A3, mix homogeneously, be placed in after being then sealed against 150 DEG C, electric field intensity be
Process 30min in the electrostatic field of 700V/cm and carry out oil-water separation, after process, cool the temperature to 90 DEG C,
Take respectively upper strata oil sample (oil sample of oil reservoir the top 1cm thickness) and middle level oil sample (oil-water interfaces layer with
The oil sample of upper 1cm thickness) measure iron content, and respectively calculate deferrization rate, be designated as upper strata deferrization rate and in
Layer deferrization rate, the results are shown in Table 2.
Embodiment 4
The present embodiment is used for the hydrocarbon ils deferrization method of the present invention is described.
100g hydrocarbon ils A, B, C (property is shown in Table 1) is taken to be respectively put in 150mL beaker respectively, and
Each proceed as follows：After 85 DEG C of preheatings, add 10g distilled water and 5mg demulsifier, add
9mg hydrocarbon ils deferrization agent A4, mix homogeneously, be placed in after being then sealed against 110 DEG C, electric field intensity be
Process 30min in the electrostatic field of 1000V/cm and carry out oil-water separation, after process, cool the temperature to 85 DEG C,
Take respectively upper strata oil sample (oil sample of oil reservoir the top 1cm thickness) and middle level oil sample (oil-water interfaces layer with
The oil sample of upper 1cm thickness) measure iron content, and respectively calculate deferrization rate, be designated as upper strata deferrization rate and in
Layer deferrization rate, the results are shown in Table 2.
Embodiment 5
The present embodiment is used for the hydrocarbon ils deferrization method of the present invention is described.
100g hydrocarbon ils A, B, C (property is shown in Table 1) is taken to be respectively put in 150mL beaker respectively, and
Each proceed as follows：After 75 DEG C of preheatings, add 10g distilled water and 4mg demulsifier, add
11mg hydrocarbon ils deferrization agent A5, mix homogeneously, be placed in after being then sealed against 130 DEG C, electric field intensity be
Process 30min in the electrostatic field of 800V/cm and carry out oil-water separation, after process, cool the temperature to 75 DEG C,
Take respectively upper strata oil sample (oil sample of oil reservoir the top 1cm thickness) and middle level oil sample (oil-water interfaces layer with
The oil sample of upper 1cm thickness) measure iron content, and respectively calculate deferrization rate, be designated as upper strata deferrization rate and in
Layer deferrization rate, the results are shown in Table 2.
Embodiment 6
The present embodiment is used for the hydrocarbon ils deferrization method of the present invention is described.
100g hydrocarbon ils A, B, C (property is shown in Table 1) is taken to be respectively put in 150mL beaker respectively, and
Each proceed as follows：After 80 DEG C of preheatings, add 10g distilled water and 6mg demulsifier, add
13mg hydrocarbon ils deferrization agent A6, mix homogeneously, be placed in after being then sealed against 140 DEG C, electric field intensity be
Process 30min in the electrostatic field of 600V/cm and carry out oil-water separation, after process, cool the temperature to 80 DEG C,
Take respectively upper strata oil sample (oil sample of oil reservoir the top 1cm thickness) and middle level oil sample (oil-water interfaces layer with
The oil sample of upper 1cm thickness) measure iron content, and respectively calculate deferrization rate, be designated as upper strata deferrization rate and in
Layer deferrization rate, the results are shown in Table 2.
Embodiment 7
The present embodiment is used for the hydrocarbon ils deferrization method of the present invention is described.
Method according to embodiment 3 carries out hydrocarbon ils deferrization, and except for the difference that, the hydrocarbon ils deferrization agent of addition is hydrocarbon
Oily deferrization agent A7.The results are shown in Table 2.
Comparative example 1
Method according to embodiment 1 carries out hydrocarbon ils deferrization, and except for the difference that, the hydrocarbon ils deferrization agent of addition is hydrocarbon
Oily deferrization agent D1.The results are shown in Table 2.
Comparative example 2
Method according to embodiment 1 carries out hydrocarbon ils deferrization, except for the difference that, is added without hydrocarbon ils deferrization agent.Knot
Fruit is shown in Table 2.
Table 1
Table 2
Embodiment 1 is compared with comparative example 1-2 respectively as can be seen that being not added with hydrocarbon ils in comparative example 2
Under the conditions of the blank of deferrization agent, deferrization rate is low, and upper strata deferrization rate, apparently higher than middle level, illustrates de- rear hydrocarbon
Ferrum skewness in oil, especially the middle level deferrization rate of hydrocarbon ils B are negative value, illustrate that de- rear middle level iron content is anti-
And raise, metallic iron is enriched in middle level oil phase and not completely into aqueous phase；Comparative example 1 existing organic
Although sour hydrocarbon ils deferrization agent can improve deferrization rate, deferrization rate in upper strata is larger with middle level deferrization rate difference,
Equally exist the problem of ferrum enrichment in the hydrocarbon ils of middle level, and, the non-oil-soluble ferrum of hydrocarbon ils A accounts for total ferrum
The non-oil-soluble ferrum of 25.4%, hydrocarbon ils B accounts for the 66.2% of total ferrum, and the non-oil-soluble ferrum of hydrocarbon ils C accounts for total ferrum
90.4%, the ratio accounting for total ferrum with non-oil-soluble ferrum is bigger, and the middle level deferrization rate of comparative example 1 is lower,
Illustrate that existing hydrocarbon ils deferrization agent can not effectively remove non-oil-soluble ferrum；And adopt the hydrocarbon ils deferrization of the present invention
Agent carries out deferrization, no matter for the high hydrocarbon ils of non-oil-soluble iron content, or for non-oil-soluble iron content
Low hydrocarbon ils, is respectively provided with high deferrization rate, and deferrization rate in upper strata is close with middle level deferrization rate, after illustrating to take off
Metallic iron is distributed more uniformly in hydrocarbon ils, and most of ferrum is transferred to aqueous phase removing, the hydrocarbon ils of the present invention
Deferrization agent can effectively remove oil-soluble ferrum and non-oil-soluble ferrum in hydrocarbon ils.
Embodiment 3 and embodiment 7 are compared and can be seen that with the gross weight of hydrocarbon ils deferrization agent as base
Standard, the content of organic acid is 5-30 weight %, the content of polyether modified silicon oil, thiamine ester and sulfur nitrogen ester it
With for 40-60 weight %, the content of solvent is 20-50 weight %, can improve deferrization rate further.
The hydrocarbon ils deferrization agent of the present invention, has good removal effect to the ferrum in hydrocarbon ils, to high Fe content
Hydrocarbon ils is equally applicable, can effectively remove the oil-soluble ferrum in hydrocarbon ils and non-oil-soluble ferrum, not result in de-
The Local enrichment of metals in hydrocarbon oil afterwards；The deferrization agent consumption of the present invention is low, effect is good, use is simple, borrows
Help existing Process Conditions for Electrostatic Desalting while desalting and dewatering, you can realize the efficient removal of metallic iron, easily
In commercial introduction application.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited to above-mentioned reality
Apply the detail in mode, in the range of the technology design of the present invention, can be to the technical side of the present invention
Case carries out multiple simple variant, and these simple variant belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned specific embodiment is special
Levy, in the case of reconcilable, can be combined by any suitable means, in order to avoid need not
The repetition wanted, the present invention no longer separately illustrates to various possible compound modes.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as its
Without prejudice to the thought of the present invention, it equally should be considered as content disclosed in this invention.
Claims (11)
1. a kind of hydrocarbon ils deferrization agent is it is characterised in that described hydrocarbon ils deferrization agent contains organic acid, polyethers
Modified silicon oil, thiamine ester and/or sulfur nitrogen ester and solvent.
2. hydrocarbon ils deferrization agent according to claim 1, wherein, total with described hydrocarbon ils deferrization agent
On the basis of weight, the content of organic acid is 5-30 weight %, and the content of polyether modified silicon oil is 10-50 weight
Amount %, the total content of thiamine ester and sulfur nitrogen ester is 5-30 weight %, and the content of solvent is 10-50 weight %.
3. hydrocarbon ils deferrization agent according to claim 2, wherein, total with described hydrocarbon ils deferrization agent
On the basis of weight, the content of organic acid is 5-30 weight %, polyether modified silicon oil, thiamine ester and sulfur nitrogen ester
Content sum be 40-60 weight %, the content of solvent is 20-50 weight %.
4. the hydrocarbon ils deferrization agent according to any one in claim 1-3, wherein, described organic
Acid is oxalic acid, maleic acid, citric acid, in 1-hydroxy ethylidene-1,1-diphosphonic acid and 2- HPAA at least
A kind of.
5. the hydrocarbon ils deferrization agent according to any one in claim 1-3, wherein, described thiamine
Ester is for O- isopropyl-N- ethyl thionic carbamate and/or O- isobutyl group-N- allyl sulfide by amino first
Acid esters, described sulfur nitrogen ester is N, N- dimethyl dithiocarbamic acid methyl ester and/or N, N- di-n-butyl two
Methyl thiocarbamate.
6. the hydrocarbon ils deferrization agent according to any one in claim 1-3, wherein, described solvent
For the mixed solution of alcohol and water, alcohol is at least one in methanol, ethanol, ethylene glycol and isopropanol, alcohol
With the weight of water than for 1:2-4.
7. the hydrocarbon ils deferrization agent according to any one in claim 1-3, wherein, described hydrocarbon ils
In the hydrocarbon ils that deferrization agent is applied, the content of ferrum is 10-300ug/g.
8. hydrocarbon ils deferrization agent according to claim 7, wherein, described hydrocarbon ils be mineral oil and its
In distillate, preferably crude oil, residual oil, deasphalted oil, shale oil, fine and close oil and liquefied coal coil extremely
Few one kind.
9. a kind of method of hydrocarbon ils deferrization is it is characterised in that methods described includes：In electro-desalting condition
Under, hydrocarbon ils is contacted with hydrocarbon ils deferrization agent and carries out deferrization, described hydrocarbon ils deferrization agent is in claim 1-8
Hydrocarbon ils deferrization agent described in any one.
10. method according to claim 9, wherein, with respect to 1g hydrocarbon ils, described hydrocarbon ils takes off
The consumption of chalybeate is 10-1000 μ g, preferably 20-300 μ g, more preferably 80-150 μ g.
11. methods according to claim 9, wherein, described electro-desalting condition includes：Electrostatic field
Temperature is 100-150 DEG C, and electric field intensity is 200-2000V/cm, preferably 300-1000V/cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510446951.6A CN106398748B (en) | 2015-07-27 | 2015-07-27 | A kind of method of hydrocarbon ils deferrization agent and hydrocarbon ils deferrization |
Applications Claiming Priority (1)
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| CN107754755A (en) * | 2017-10-20 | 2018-03-06 | 万华化学（宁波）有限公司 | Remove adsorbent of iron point and preparation method thereof and removal methods in thick isocyanate products |
| CN110564446A (en) * | 2018-06-05 | 2019-12-13 | 中国石油化工股份有限公司 | Dirty oil treating agent and application thereof and method for recycling dirty oil |
| CN113171584A (en) * | 2021-04-26 | 2021-07-27 | 天津海成能源工程技术有限公司 | Iron removing liquid and method for removing iron ions of high-boiling residues of VCM device |
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| CN107754755B (en) * | 2017-10-20 | 2020-04-10 | 万华化学（宁波）有限公司 | Adsorbent for removing iron content in crude isocyanate product and preparation method and removing method thereof |
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