CN1687317A - Treating agent without adding hydrogen for coking diesel oil and refining technique - Google Patents
Treating agent without adding hydrogen for coking diesel oil and refining technique Download PDFInfo
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- CN1687317A CN1687317A CN 200510046102 CN200510046102A CN1687317A CN 1687317 A CN1687317 A CN 1687317A CN 200510046102 CN200510046102 CN 200510046102 CN 200510046102 A CN200510046102 A CN 200510046102A CN 1687317 A CN1687317 A CN 1687317A
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Abstract
The present invention relates to a non-hydrogenation refining agent for coker diesel oil and a combination process for using said refining agent to remove instable components from coker diesel oil and making various indexes of the refined coker diesel oil be qualified and stable. Said refining agent is formed from the following components: (by wt%) inorganic acid whose content is 30-100%, the rest is soft water, inorganic alkali whose content is 20-50% and organic alkaline cosolvent whose content is 0.1-5%, and the rest is soft water. Besides, said invention also provides the application method of said refining agent.
Description
Technical field
The present invention relates to the non-hydrogenation finishing agent of coker gas oil, and use this finishing agent to remove destabilization component in the coker gas oil so that the refining qualified and stable combination process of the every index of coker gas oil.
Background technology
Uneasy component in the coker gas oil is frowziness not only, and the burning back generates carbon, sulphur, nitrogen oxide, serious environment pollution.Therefore how these materials of effective elimination are the problems that the petrochemical industry technician is paid close attention to always.Remove the destabilization component in the coker gas oil at present, generally use hydrofining to reach the purpose that removes the destabilization component; The hydrofining effect is fine, and indexs such as the sulphur content of coker gas oil, colourity, sediment are all qualified fully, but facility investment is too high, tooling cost is high, dangerous relatively large in the complex process, production.
Summary of the invention
The objective of the invention is to the problems referred to above, two kinds of finishing agents that remove coker gas oil destabilization component are provided at the prior art existence, wherein a kind of based on decolouring, denitrogenation, stable, upgrading; Another kind of with depickling, desulfurization, deodorization, stabilize to the master; Propose to use the combination process of finishing agent of the present invention simultaneously.Make that indexs such as mercaptan sulfur content, colourity, sediment reach in the GB set quota in the coker gas oil.
The objective of the invention is to be achieved through the following technical solutions:
The non-hydrogenation fine preparation of coker gas oil, form by following weight percent preparation:
A. the content of mineral acid is in 30～100%, and surplus is a soft water;
B. the content of mineral alkali is in 20～50%, and the content of organic basic solubility promoter is 0.1～5%, and surplus is a soft water.
The employed mineral acid of this finishing agent is sulfuric acid or phosphoric acid, and it recommends content is 60～90%.
Mineral alkali is a metal base in this finishing agent, and as sodium hydroxide, potassium hydroxide, it recommends content is 35～50%.
The organic basic solubility promoter of this finishing agent is N methyldiethanol amine, trolamine, diethanolamine, Monoethanolamine MEA BASF.
The non-hydrogenation technology of coker gas oil:
(1) preparation method of this finishing agent is:
The industrial soft water that adds the said ratio amount in reactor adds the mineral acid of said ratio amount successively under agitation condition, make it fully dissolve, mix, and can make finishing agent a;
Add the industrial soft water of said ratio amount in reactor, the mineral alkali, the organic basic solubility promoter that add the said ratio amount under agitation condition successively make it fully dissolve, mix, and can make finishing agent b;
(2) process for refining of this coker gas oil is:
Above-mentioned gained finishing agent a, b are respectively charged in the reaction tower, make pending diesel oil continue to pass through reaction tower and slurry tank and water washing tank with fluid form after, pass the dehydration of salt jar again, can obtain qualified refined diesel oil.
Advantage of the present invention and positively effect are:
1. finishing agent a and coker gas oil generate a kind of dark oil material in reaction kettle for reaction, this material is deposited in the bottom of reactor, become a phase separately, finishing agent a has dark matters such as the nitride of removing, unsaturated hydrocarbons and derivative thereof, polycyclic aromatic hydrocarbons and derivative thereof, colloid, bituminous matter, improves the effect of coker gas oil and other diesel oil stabilities and use properties.
2. finishing agent b and diesel oil generate a kind of dark oil material in reaction kettle for reaction, and this material is enriched in the reactor centre of oil and finishing agent b, becomes a phase separately.Finishing agent b has the colloid of removing, bituminous matter, sulfide, oxide compound, improves the effect of coker gas oil stability and use properties.
3. use finishing agent of the present invention and technology, can make that indexs such as mercaptan sulfur content, colourity, sediment reach in the GB set quota in the coker gas oil;
4. compare with hydrofinishing process, the equipment input is extremely low, and operation and aftertreatment are simple; The decreasing ratio height, the oily tooling cost of ton is low, owing to do not have hydrogen and high pressure, this technology danger is little, Serious Accident can not take place.
Embodiment
Be liquid during finishing agent a room temperature of the present invention, density is 1.50～1.83g/cm
3
Be liquid during finishing agent b room temperature of the present invention, density is 1.380～1.487g/cm
3
Because the coker gas oil complicated component, the amount and the kind of the contained destabilization component of the oil product in the different places of production are all different, so the kind of each effective constituent of finishing agent of the present invention and content are to adjust according to the amount and the kind of contained destabilization component in the oil product.The content of dark matter and destabilization compound is higher in oil product, and the consumption of finishing agent a and finishing agent b can correspondingly increase; When the amount of contained dark matter in the oil product and destabilization compound is hanged down, the corresponding minimizing of consumption of finishing agent a and finishing agent b.
This technology is with the finishing agent of the present invention reaction tower of packing into, make coker gas oil pass the reaction tower that finishing agent is housed successively continuously or intermittently again with fluid form, make the reaction of wherein contained dark matter and destabilization compound and finishing agent thorough mixing, thereby reach the purpose that from coker gas oil, removes the destabilization component.Wherein, employed size, the specification that the reaction tower of finishing agent of the present invention is housed looked the amount of contained destabilization component in the oil product and the desired index of product standard is determined; After oil product removes dark matter and destabilization component, make coker gas oil pass the dehydration of salt jar again,, can obtain meeting the qualified finished diesel fuel that product standard requires to remove a spot of finishing agent of wherein carrying secretly.
Destabilization component in the coker gas oil is meant destabilization material and dark matters such as sulfide, oxide compound, nitride, unsaturated hydrocarbons and derivative thereof, various aromatic hydrocarbons and derivative thereof, colloid, bituminous matter.The resultant of destabilization component and finishing agent mixing effect is the dark oil material, can regularly such material be extracted from reaction tower, changes the residual oil pond over to and gets final product, not only simply but also free from environmental pollution.With the process of destabilization component effect in, with the coker gas oil that ever-increasing dark oil material and continuous flow are arranged in the reactor of finishing agent a effect, it is settlement separate that the mixture of reaction changes slurry tank over to.Isolated oil phase with the process of finishing agent b effect in, reactor lower floor is finishing agent b; The middle level is that reaction generates and ever-increasing dark oil material; The upper strata is a refined diesel oil.By the diesel oil of refinement treatment refer to fresh reddish-brown coker gas oil, deposit black coker gas oil, catalytic diesel oil, straight-run diesel oil, the blended diesel in several years and deposit after become the various defective diesel oil distillate of redness, brown, black.
When using this technology, finishing agent a, finishing agent b mix with diesel oil, the sequencing of refining reaction can according to circumstances be adjusted.
Below in conjunction with embodiment, the present invention is described in further detail:
Embodiment 1.
Finishing agent a proportioning: 25% sulfuric acid; 60% phosphoric acid; Surplus is that the pH value is 6 industrial soft water.
Preparation method: in reactor, add the industrial soft water of said ratio amount, under agitation condition, add phosphoric acid, the sulfuric acid of said ratio amount successively, make it fully dissolve, mix, can make finishing agent a of the present invention.
Finishing agent b proportioning: sodium hydroxide 37%; N methyldiethanol amine 3.0%; Surplus is that the pH value is 6 industrial soft water.
Preparation method: in reactor, add the industrial soft water of said ratio amount, under agitation condition, add sodium hydroxide, the N methyldiethanolamine of said ratio amount successively, it is fully dissolved, can make finishing agent b of the present invention.
Utilize above-mentioned gained finishing agent and remove dark matter in the diesel oil and the processing method of destabilization compound: with the above-mentioned gained finishing agent reaction tower 1,2 of packing into, after making diesel oil (defective) continue to pass through this reaction tower 1,2 and slurry tank and water washing tank with certain fluid form, pass the dehydration of salt jar again, can obtain qualified refined diesel oil.
The content of the colourity of handled red catalytic coking diesel oil, existent gum, sediment, sulphur content, mercaptan sulfur is followed successively by 4.0,63,2.2,0.097%, 56.9ppm, and the content that obtains colourity in the refined diesel oil, existent gum, sediment, sulphur content, mercaptan sulfur after the processing is followed successively by 1.0,23,1.03,0.07%, 18.3ppm.
Embodiment 2.
Adopt the preparation method identical and remove the dark matter in the diesel oil and the processing method of destabilization compound, the different proportioning of being with embodiment 1:
Finishing agent a proportioning: 75% phosphoric acid; 5% sulfuric acid; Surplus is that the pH value is 7 industrial soft water.
Finishing agent b proportioning: sodium hydroxide 40%; Potassium hydroxide 2.0%; Trolamine 1.5%; N methyldiethanol amine 3.0%; Surplus is that the pH value is 7 industrial soft water.
The content of the colourity of handled black catalytic diesel oil, existent gum, sediment, sulphur content, mercaptan sulfur is followed successively by 5.5,83,2.7,0.32%, 200.1ppm, and the content that obtains colourity in the refined diesel oil, existent gum, sediment, sulphur content, mercaptan sulfur after the processing is followed successively by 1.5,41,1.53,0.14%, 31.3ppm.
Embodiment 3.
Adopt the preparation method identical and remove the dark matter in the diesel oil and the processing method of destabilization compound, the different proportioning of being with embodiment 1:
Finishing agent a proportioning: 85% phosphoric acid; 2% sulfuric acid; Surplus is that the pH value is 7 industrial soft water.
Finishing agent b proportioning: sodium hydroxide 43%; Monoethanolamine MEA BASF 2.5%; Surplus is that the pH value is 7 industrial soft water.
The content of the colourity of handled red coker gas oil, existent gum, sediment, sulphur content, mercaptan sulfur is followed successively by 6.0,112,3.2,0.35%, 135ppm, and the content that obtains colourity in the refined diesel oil, existent gum, sediment, sulphur content, mercaptan sulfur after the processing is followed successively by 2.5,47,1.73,0.16%, 15.3ppm.
Embodiment 4.
Adopt the preparation method identical and remove the dark matter in the diesel oil and the processing method of destabilization compound, the different proportioning of being with embodiment 1:
Finishing agent a proportioning: 2.5% phosphoric acid; 80% sulfuric acid; Surplus is that the pH value is 7 industrial soft water.
Finishing agent b proportioning: sodium hydroxide 43%; Monoethanolamine MEA BASF 2.5%; Diethanolamine 2.0%; Surplus is that the pH value is 7 industrial soft water.
The content of the colourity of handled black coker gas oil, existent gum, sediment, sulphur content, mercaptan sulfur is followed successively by 8.0,136,3.7,0.41%, 232ppm, and the content that obtains colourity in the refined diesel oil, existent gum, sediment, sulphur content, mercaptan sulfur after the processing is followed successively by 2.5,57,1.97,0.15%, 49ppm.
Embodiment 5.
Adopt the preparation method identical and remove the dark matter in the diesel oil and the processing method of destabilization compound, the different proportioning of being with embodiment 1:
Finishing agent a proportioning: 15% phosphoric acid; 65% sulfuric acid; Surplus is that the pH value is 7 industrial soft water.
Finishing agent b proportioning: sodium hydroxide 40%; Potassium hydroxide 1.0%; N methyldiethanol amine 1.5%; Monoethanolamine MEA BASF 2.8%; Surplus is that the pH value is 7 industrial soft water.
The content of the colourity of handled black catalytic diesel oil (depositing 1 year), existent gum, sediment, sulphur content, mercaptan sulfur is followed successively by 6.5,78,1.6,0.26%, 306.1ppm, and the content that obtains colourity in the refined diesel oil, existent gum, sediment, sulphur content, mercaptan sulfur after the processing is followed successively by 2.0,36,1.07,0.16%, 46.7ppm.
Embodiment 6.
Adopt the preparation method identical and remove the dark matter in the diesel oil and the processing method of destabilization compound, the different proportioning of being with embodiment 1:
Finishing agent a proportioning: 85% sulfuric acid; Surplus is that the pH value is 7 industrial soft water.
Finishing agent b proportioning: sodium hydroxide 43%; Monoethanolamine MEA BASF 2.0%; Surplus is that the pH value is 7 industrial soft water.
The content of the colourity of handled black coker gas oil (depositing 3 years), existent gum, sediment, sulphur content, mercaptan sulfur is followed successively by＞and 8.0,278,4.8,0.58%, 632ppm, the content that obtains colourity in the refined diesel oil, existent gum, sediment, sulphur content, mercaptan sulfur after the processing is followed successively by 2.5,48,1.38,0.08%, 58ppm.
Claims (5)
1. the non-hydrogenation fine preparation of coker gas oil is characterized in that described finishing agent is made up of following weight percent preparation:
A. the content of mineral acid is in 30～100%, and surplus is a soft water;
B. the content of mineral alkali is in 20～50%, and the content of organic basic solubility promoter is 0.1～5%, and surplus is a soft water.
2. finishing agent according to claim 1 is characterized in that the employed mineral acid of this finishing agent is sulfuric acid or phosphoric acid, and it recommends content is 60～90%.
3. finishing agent according to claim 1 is characterized in that mineral alkali is a metal base in this finishing agent, and as sodium hydroxide, potassium hydroxide, it recommends content is 35～50%.
4. finishing agent according to claim 1, the organic basic solubility promoter that it is characterized in that this finishing agent is N methyldiethanol amine, trolamine, diethanolamine, Monoethanolamine MEA BASF.
5. the non-hydrogenation technology of coker gas oil is characterized in that:
(1) preparation method of this finishing agent is:
The industrial soft water that adds the said ratio amount in reactor adds the mineral acid of said ratio amount successively under agitation condition, make it fully dissolve, mix, and can make finishing agent a;
Add the industrial soft water of said ratio amount in reactor, the mineral alkali, the organic basic solubility promoter that add the said ratio amount under agitation condition successively make it fully dissolve, mix, and can make finishing agent b;
(2) process for refining of this coker gas oil is:
Above-mentioned gained finishing agent a, b are respectively charged in the reaction tower, make pending diesel oil continue to pass through reaction tower and slurry tank and water washing tank with fluid form after, pass the dehydration of salt jar again, can obtain qualified refined diesel oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510046102 CN1687317A (en) | 2005-03-25 | 2005-03-25 | Treating agent without adding hydrogen for coking diesel oil and refining technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510046102 CN1687317A (en) | 2005-03-25 | 2005-03-25 | Treating agent without adding hydrogen for coking diesel oil and refining technique |
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| CN1687317A true CN1687317A (en) | 2005-10-26 |
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| CN 200510046102 Pending CN1687317A (en) | 2005-03-25 | 2005-03-25 | Treating agent without adding hydrogen for coking diesel oil and refining technique |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619230A (en) * | 2008-07-01 | 2010-01-06 | 汉能科技有限公司 | Method for recycling organic compounds from caustic sludge generated in coal tar oil light end alkali cleaning |
| CN101619229A (en) * | 2008-07-04 | 2010-01-06 | 汉能科技有限公司 | Method for preparing diesel oil components with coal tar oil light ends |
-
2005
- 2005-03-25 CN CN 200510046102 patent/CN1687317A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619230A (en) * | 2008-07-01 | 2010-01-06 | 汉能科技有限公司 | Method for recycling organic compounds from caustic sludge generated in coal tar oil light end alkali cleaning |
| CN101619229A (en) * | 2008-07-04 | 2010-01-06 | 汉能科技有限公司 | Method for preparing diesel oil components with coal tar oil light ends |
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