CN105199778A - Solvent oil hydrofining method - Google Patents
Solvent oil hydrofining method Download PDFInfo
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- CN105199778A CN105199778A CN201510565597.9A CN201510565597A CN105199778A CN 105199778 A CN105199778 A CN 105199778A CN 201510565597 A CN201510565597 A CN 201510565597A CN 105199778 A CN105199778 A CN 105199778A
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Abstract
The invention relates to a solvent oil hydrofining method, in particular to an ink solvent oil hydrofining method. The solvent oil hydrofining method comprises the following steps of raw material pretreatment, primary hydrofining, secondary hydrofining and precise fraction cutting. A mixture of shale oil and coal tar is selected to be used as raw materials; a two-step stage-by-stage cracking and suspended bed and slurry bed double-reaction bed hydrogenation process is used; heavy oil ingredients in a mixed oil product are sufficiently and thoroughly pyrolyzed and converted into light-weight oil products; meanwhile, impurities such as oxygen, sulfur, nitrogen and metal in the mixed oil product can be subjected to partial olefin and aromatic compound removal to reach a saturation state; the quality of intermediate compounds is improved; the thermal and light stability of a final product is improved; the defects of poor dissolution capability of fatty group ink solvents and high toxicity of aromatic hydrocarbon ink solvents are overcome; in addition, the harm of ink to the environment and a human body in the use process is reduced; the method is widely applicable to offset printing and lead printing ink.
Description
Technical field
The present invention relates to a kind of hydrofinishing process of solvent oil, particularly a kind of hydrofinishing process of offset printing ink solvent oil.
Background technology
Printing oil solvent is the main raw material of manufacture of ink, accounts for 60% of ink total raw material.Offset litho printing ink solvent oil is the important component part of flexographic ink binder.It is neither the true solvent of offset plate ink resin, neither its solubility promoter, but plays thinner, and binder is diluted by means of printing oil solvent, and the ink viscosity made is declined, and the charge in planographic ink is about 30%.In printing process, when the printing oil solvent in ink penetrates into after in paper, ink can be made dry rapidly, improve the set speed of ink, adapt to the needs of high speed printing.Existing printing oil solvent, belong to petroleum product more, mainly obtain appropriate fractions by the crude oil of paraffinic base and cycloalkyl through distillation, again through product that different complete processing obtains, its working method is summarised as four kinds: the first working method be the Straight run naphthas that obtains with paraffinic crude air distillation for raw material, the product obtained after refining and rectifying.The second working method be the straight run that obtains with paraffinic crude air distillation for raw material, the product obtained after cold press dewaxing, hydrofining.The third production method is the product obtained after distillation, mediation for raw material with the appropriate fractions of naphthenic base crude.4th kind of production method is the product obtained after distillation, mediation for raw material with the extract oil of lubricating oil of naphthenic base crude.The product aniline point that first three methods obtains is high, poorly soluble with ink resin, thus must use the true solvent that price is more expensive more, and dry vegetable oil strengthens the dissolving power of solvent system to resin, certainly will increase the cost of ink like this.The 4th kind of product that method obtains, pour point high and low temperature poor fluidity, is applied to its fast solvent release performance in offset lithography colored ink undesirable.
Summary of the invention
The technical problem to be solved in the present invention is the above-mentioned defect how overcoming prior art, provides a kind of hydrofinishing process of solvent oil.
For solving the problems of the technologies described above, the hydrofinishing process of this solvent oil comprises the following steps:
A hydrofinishing process for solvent oil, is characterized in that: the hydrofinishing process of this solvent oil comprises the following steps:
Step (1): raw material pre-treatment;
Step (2) a: hydrofining;
Step (3): secondary hydrofining;
Step (4): accurate cut cutting.
As prioritization scheme: in step (1): raw material is the mixture of shale oil and coal tar, parts by weights ratio meter, in the mixture of described shale oil and coal tar, the weight ratio of shale oil and coal tar is 5 ~ 10:1, by the mixture of shale oil and coal tar under temperature 300 ~ 400 DEG C, pressure 0.05 ~ 0.08MPa, carry out high-temperature low-pressure distillation, sharp separation obtains lightweight oil and mink cell focus.
As prioritization scheme: in step (2): step (1) is separated the mink cell focus obtained carries out hydrofining reaction in bubbling bed reactor, the add-on of Hydrobon catalyst with the total metal content controlling active ingredient with enter the weight ratio of mink cell focus of suspended-bed reactor for 1.0 ~ 1.5:100, obtain a hydrofined oil.
As prioritization scheme: in step (3): step (1) is separated the hydrofined oil that the lightweight oil obtained and step (2) obtain and mixes, secondary hydrofining is carried out in paste state bed reactor, the add-on of Hydrobon catalyst with the total metal content controlling active ingredient with enter the weight ratio of mink cell focus of bubbling bed reactor for 3 ~ 8:100, obtain secondary hydrofined oil.
As prioritization scheme: in step (4): the secondary hydrofined oil precision fractional distillation that step (3) is obtained cuts out 250 ~ 350 DEG C of cuts, obtains this solvent oil.
As prioritization scheme: the described hydrofining reaction condition of step (2) is: temperature is 200 ~ 300 DEG C, pressure is 10.0 ~ 15.0MPa, volume space velocity is 0.2 ~ 0.5h
- 1, hydrogen to oil volume ratio 1000 ~ 1500:1.
As prioritization scheme: step (3) described secondary hydrofining reaction condition is: temperature is 300 ~ 400 DEG C, pressure is 15.0 ~ 25.0MPa, volume space velocity is 0.5 ~ 1.0h
-1, hydrogen to oil volume ratio 1500 ~ 2000:1.
As prioritization scheme: the described processing condition by the precision fractional distillation of secondary hydrofined oil of step (4) are: tower top temperature 180 ~ 200 DEG C, tower top pressure-0.05 ~-0.10MPa, column bottom temperature 200 ~ 225 DEG C.
As prioritization scheme: the preparation method of step (2) and the Hydrobon catalyst described in step (3) is, first nickelous carbonate will be obtained by sol-gel method, then at temperature 500 ~ 650 DEG C of roasting 3 ~ 5h, obtain nickel oxide, the nickel oxide obtained and aluminum oxide are extruded with the ratio of 0.5 ~ 1:1 and is integrated, at temperature 150 ~ 200 DEG C of drying 5 ~ 8h, roasting 5 ~ 8h at temperature 600 ~ 750 DEG C again, obtain carrier, this carrier being soaked in nickel oxide concentration is 24h in the metallic solution of the nickel of 0.5 ~ 1.5g/L, after taking-up, roasting 3 ~ 5h at temperature 500 ~ 650 DEG C, temperature 150 ~ 200 DEG C of drying 5 ~ 8h.
The hydrofinishing process of a kind of solvent oil of the present invention, the mixture choosing shale oil and coal tar is raw material, utilize two step progressive crackings, the two reaction bed hydrogenation technique of suspension bed slurry bed system, now the heavy oil composition in mixing oil product is carried out fully thoroughly cracking and be converted into light-end products, make the oxygen in mixing oil product simultaneously, sulphur, nitrogen and metal impurities are able to partial removal alkene and aromatic hydroxy compound and saturated, improve the quality of intermediate, and improve the heat of final product, light stability, overcome aliphatics ink solvent power poor, the defect that aromatic hydrocarbon ink solvent toxicity is large, and reduce ink in use to the harm of environment and the person, be widely used in offset printing and letterpress printing ink.
Embodiment
Embodiment: the hydrofinishing process of this solvent oil comprises the following steps,
Step (1)---raw material pre-treatment: described raw material is the mixture of shale oil and coal tar, parts by weights ratio meter, in the mixture of described shale oil and coal tar, the weight ratio of shale oil and coal tar is 5 ~ 10:1, by the mixture of shale oil and coal tar under temperature 300 ~ 400 DEG C, pressure 0.05 ~ 0.08MPa, carry out high-temperature low-pressure distillation, sharp separation obtains lightweight oil and mink cell focus;
Step (2) a---hydrofining: step (1) is separated the mink cell focus obtained carries out hydrofining reaction in bubbling bed reactor, the add-on of Hydrobon catalyst with the total metal content controlling active ingredient with enter the weight ratio of mink cell focus of suspended-bed reactor for 1.0 ~ 1.5:100, obtain a hydrofined oil;
Step (3)---secondary hydrofining: step (1) is separated the hydrofined oil that the lightweight oil obtained and step (2) obtain and mixes, secondary hydrofining is carried out in paste state bed reactor, the add-on of Hydrobon catalyst with the total metal content controlling active ingredient with enter the weight ratio of mink cell focus of bubbling bed reactor for 3 ~ 8:100, obtain secondary hydrofined oil;
Step (4)---accurate cut cutting: the secondary hydrofined oil precision fractional distillation that step (3) is obtained cuts out 250 ~ 350 DEG C of cuts, obtains this solvent oil.
The described hydrofining reaction condition of above-mentioned steps (2) is---temperature is 200 ~ 300 DEG C, pressure is 10.0 ~ 15.0MPa, volume space velocity is 0.2 ~ 0.5h
-1, hydrogen to oil volume ratio 1000 ~ 1500:1.
Above-mentioned steps (2) described secondary hydrofining reaction condition is---temperature is 300 ~ 400 DEG C, pressure is 15.0 ~ 25.0MPa, volume space velocity is 0.5 ~ 1.0h
-1, hydrogen to oil volume ratio 1500 ~ 2000:1.
The described processing condition by the precision fractional distillation of secondary hydrofined oil of above-mentioned steps (4) are---tower top temperature 180 ~ 200 DEG C, tower top pressure-0.05 ~-0.10MPa, column bottom temperature 200 ~ 225 DEG C.
The preparation method of above-mentioned steps (2) and the Hydrobon catalyst described in step (3) is, first nickelous carbonate will be obtained by sol-gel method, then at temperature 500 ~ 650 DEG C of roasting 3 ~ 5h, obtain nickel oxide, the nickel oxide obtained and aluminum oxide are extruded with the ratio of 0.5 ~ 1:1 and is integrated, at temperature 150 ~ 200 DEG C of drying 5 ~ 8h, roasting 5 ~ 8h at temperature 600 ~ 750 DEG C again, obtain carrier, this carrier being soaked in nickel oxide concentration is 24h in the metallic solution of the nickel of 0.5 ~ 1.5g/L, after taking-up, roasting 3 ~ 5h at temperature 500 ~ 650 DEG C, temperature 150 ~ 200 DEG C of drying 5 ~ 8h.
Above-mentioned embodiment is intended to illustrate that the present invention can be professional and technical personnel in the field and realizes or use; modifying to above-mentioned embodiment will be apparent for those skilled in the art; therefore the present invention includes but be not limited to above-mentioned embodiment; any these claims or specification sheets of meeting describes; meet and principle disclosed herein and novelty, the method for inventive features, technique, product, all fall within protection scope of the present invention.
Claims (9)
1. a hydrofinishing process for solvent oil, is characterized in that: the hydrofinishing process of this solvent oil comprises the following steps:
Step (1): raw material pre-treatment;
Step (2) a: hydrofining;
Step (3): secondary hydrofining;
Step (4): accurate cut cutting.
2. the hydrofinishing process of a kind of solvent oil according to claim 1, it is characterized in that: in step (1): raw material is the mixture of shale oil and coal tar, parts by weights ratio meter, in the mixture of described shale oil and coal tar, the weight ratio of shale oil and coal tar is 5 ~ 10:1, by the mixture of shale oil and coal tar under temperature 300 ~ 400 DEG C, pressure 0.05 ~ 0.08MPa, carry out high-temperature low-pressure distillation, sharp separation obtains lightweight oil and mink cell focus.
3. the hydrofinishing process of a kind of solvent oil according to claim 2, it is characterized in that: in step (2): step (1) is separated the mink cell focus obtained in bubbling bed reactor, carries out hydrofining reaction, the add-on of Hydrobon catalyst with the total metal content controlling active ingredient with enter the weight ratio of mink cell focus of suspended-bed reactor for 1.0 ~ 1.5:100, obtain a hydrofined oil.
4. the hydrofinishing process of a kind of solvent oil according to claim 3, it is characterized in that: in step (3): step (1) is separated the hydrofined oil that the lightweight oil obtained and step (2) obtain and mixes, secondary hydrofining is carried out in paste state bed reactor, the add-on of Hydrobon catalyst with the total metal content controlling active ingredient with enter the weight ratio of mink cell focus of bubbling bed reactor for 3 ~ 8:100, obtain secondary hydrofined oil.
5. the hydrofinishing process of a kind of solvent oil according to claim 4, is characterized in that: in step (4): the secondary hydrofined oil precision fractional distillation that step (3) is obtained cuts out 250 ~ 350 DEG C of cuts, obtains this solvent oil.
6. the hydrofinishing process of a kind of solvent oil according to claim 3, is characterized in that: the described hydrofining reaction condition of step (2) is: temperature is 200 ~ 300 DEG C, pressure is 10.0 ~ 15.0MPa, volume space velocity is 0.2 ~ 0.5h
-1, hydrogen to oil volume ratio 1000 ~ 1500:1.
7. the hydrofinishing process of a kind of solvent oil according to claim 4, is characterized in that: step (3) described secondary hydrofining reaction condition is: temperature is 300 ~ 400 DEG C, pressure is 15.0 ~ 25.0MPa, volume space velocity is 0.5 ~ 1.0h
-1, hydrogen to oil volume ratio 1500 ~ 2000:1.
8. the hydrofinishing process of a kind of solvent oil according to claim 5, is characterized in that: the described processing condition by the precision fractional distillation of secondary hydrofined oil of step (4) are: tower top temperature 180 ~ 200 DEG C, tower top pressure-0.05 ~-0.10MPa, column bottom temperature 200 ~ 225 DEG C.
9. the hydrofinishing process of a kind of solvent oil according to claim 4, it is characterized in that: the preparation method of step (2) and the Hydrobon catalyst described in step (3) is, first nickelous carbonate will be obtained by sol-gel method, then at temperature 500 ~ 650 DEG C of roasting 3 ~ 5h, obtain nickel oxide, the nickel oxide obtained and aluminum oxide are extruded with the ratio of 0.5 ~ 1:1 and is integrated, at temperature 150 ~ 200 DEG C of drying 5 ~ 8h, roasting 5 ~ 8h at temperature 600 ~ 750 DEG C again, obtain carrier, this carrier being soaked in nickel oxide concentration is 24h in the metallic solution of the nickel of 0.5 ~ 1.5g/L, after taking-up, roasting 3 ~ 5h at temperature 500 ~ 650 DEG C, temperature 150 ~ 200 DEG C of drying 5 ~ 8h.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703116A (en) * | 2012-05-29 | 2012-10-03 | 煤炭科学研究总院 | Ink solvent oil and preparation method thereof |
| CN102807899A (en) * | 2012-07-26 | 2012-12-05 | 煤炭科学研究总院 | Coal-based environment-friendly solvent oil and preparation method thereof |
| JP2014227498A (en) * | 2013-05-23 | 2014-12-08 | コスモ石油株式会社 | Production method of lubricant base oil |
| CN105112098A (en) * | 2015-08-17 | 2015-12-02 | 山东成泰化工有限公司 | Hydrofining method for solvent oil |
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- 2015-09-08 CN CN201510565597.9A patent/CN105199778A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703116A (en) * | 2012-05-29 | 2012-10-03 | 煤炭科学研究总院 | Ink solvent oil and preparation method thereof |
| CN102807899A (en) * | 2012-07-26 | 2012-12-05 | 煤炭科学研究总院 | Coal-based environment-friendly solvent oil and preparation method thereof |
| JP2014227498A (en) * | 2013-05-23 | 2014-12-08 | コスモ石油株式会社 | Production method of lubricant base oil |
| CN105112098A (en) * | 2015-08-17 | 2015-12-02 | 山东成泰化工有限公司 | Hydrofining method for solvent oil |
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