CN105732290A - Novel production device of series products of decalin isomers at different ratios - Google Patents
Novel production device of series products of decalin isomers at different ratios Download PDFInfo
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- CN105732290A CN105732290A CN201410748960.6A CN201410748960A CN105732290A CN 105732290 A CN105732290 A CN 105732290A CN 201410748960 A CN201410748960 A CN 201410748960A CN 105732290 A CN105732290 A CN 105732290A
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- storage tank
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- decalin
- decahydronaphthalenes
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Abstract
The present invention discloses a novel production device of series products of decalin isomers at different ratios, belongs to the production field of chemical organic solvents, and particularly relates to a novel mechanical production device of series products of decalin isomers at different ratios. Decalin is a colorless liquid, has a light menthol smell, and is a product of hydrogenation of all double bonds of naphthaline. Therefore, the decalin has two isomers, i.e., a cis-isomer and a trans-isomer and is an excellent organic solvent. The production device comprises: a first material storage tank, a gas storage tank, a compressor, a metering pump, a raw material preheater, a desulfurization tank, a reactor, a separator, a cooler, a centrifugal pump, a rectifying tower, a second material storage tank and a third material storage tank. The device uses common equipment, and is small in investment, simple in process, free of pollution, high in product purity, etc.
Description
Technical field
The present invention relates to a kind of novel decahydronaphthalenes isomer different ratio series of products process units, belong to chemical industry organic solvent production field.
Background technology
Decahydronaphthalenes, structural formula C10H18, outward appearance is colourless liquid, micro-strip Mentholum abnormal smells from the patient, naphthalene carry out catalytic hydrogenation in the presence of a catalyst and obtain the mixture of cis, trans two kinds of isomers, boiling point (oC, 101.3kPa): 195.815 (cis)；(187.310 trans), it is a kind of excellent high boiling organic solvent, volatile, easily reclaim, and toxicity is little, can dissolve many macromolecular compounds, it, as the necessary solvent of high property polyethylene fibre dry spinning preparation, is widely applied abroad；In addition it also acts as the solvent of coating, and is used for extracting fat and wax, replaces Oleum Terebinthinae for the manufacture of shoe polish, floor wax, can be made into mixture with benzene and ethanol, can be used as the fuel of internal combustion engine；Cis-decaline can be used to produce decanedioic acid and then produce nylon 6,10 and plasticizer；The heat stability of trans-decalin is better than long chain alkane, is improve the requisite interpolation component of aerial kerosene heat stability.Apparatus of the present invention are exactly a kind of device producing different ratio isomer decahydronaphthalenes product, this device can adopt A series catalysts to produce high-load technical grade decahydronaphthalenes comparatively gentle when, may be used without simultaneously B system catalytic production high-purity trans content reach more than 99% be specifically for use in the business level organic solvent producing trans-Decalin Derivative Liquid Crystal material, the advantage of this device is: common apparatus can be used to prepare the decahydronaphthalenes of different ratio isomer, have investment little, technique is simple, pollution-free, product purity relatively advantages of higher.
Summary of the invention
In order to meet the industrial demand to variable concentrations isomer proportioning decahydronaphthalenes, the present invention provides a kind of device, this device is with the refined naphthalene after desulfurization for raw material, catalyzed hydrogenation, separator separate, distillation, rectification and prepare different from inversely proportional decahydronaphthalenes series of products, this device has use common apparatus, it is little to invest, technique is simple, pollution-free, product purity relatively advantages of higher.
The technical solution used in the present invention is:
A kind of novel decahydronaphthalenes isomer different ratio series of products process units: the first storage tank, air accumulator, compressor, dosing pump, feed preheater, desulfurizer, reactor, separator, cooler, distillation column, rectifying column, second material storage tank, 3 material storage tank, first storage tank has excessive batching kettle between dosing pump, medium pressure gas surge tank is had between air accumulator and compressor, the thermal source of feed preheater is from the high-grade energy gas-liquid mixed product of reactor outlet, desulfurizer has middle pressure steam to carry out tracing thermal-insulating, reactor has high-efficiency heat conduction oil system provide thermal source and remove reaction heat, separator and cooler gaseous component return air accumulator and recycle, heavy constituent at the bottom of distillation column and the light component of rectifying column tower top and tower returns the second material storage tank respectively, 3 material storage tank.
The further technical scheme of the present invention is:
Described whole pipeline is heat-resisting, pressure, resistant to hydrogen corrosion material.
Described dosing pump and compressor are that explosion-proof type, centrifugal pump are asked into canned motor pump and for heat-resisting, pressure, resistant material manufacture.
Described: the first storage tank, the second material storage tank, 3 material storage tank, feed preheater, desulfurizer, reactor, separator, distillation column, rectifying column are heat-resisting, pressure, resistant material manufacture.
The invention has the beneficial effects as follows: provide a kind of device producing different ratio isomer decahydronaphthalenes product, this device uses common apparatus, have investment little, technique is simple, pollution-free, product purity relatively advantages of higher, it is possible to produce the decahydronaphthalenes of qualified different ratio isomer.
Accompanying drawing illustrates:
If figure is principle of the invention schematic diagram.
Detailed description of the invention
Embodiment:
nullA kind of novel decahydronaphthalenes isomer different ratio series of products process units includes: the first storage tank 3、Air accumulator 1、Compressor 2、Dosing pump 4、Feed preheater 5、Desulfurizer 6、Reactor 7、Separator 8、Cooler 9、Distillation column 10、Rectifying column 20、Second material storage tank 11、3 material storage tank 12，First storage tank 3 has excessive batching kettle 14 between dosing pump 4、Medium pressure gas surge tank 13 is had between air accumulator 1 and compressor 2、The thermal source of feed preheater 5 carrys out the high-grade energy gas-liquid mixed product 15 of autoreactor 7 outlet、Desulfurizer 6 has middle pressure steam 16 to carry out tracing thermal-insulating、Reactor 7 has high-efficiency heat conduction oil system 17 provide thermal source and remove reaction heat、Separator 8 and cooler 9 gaseous component 18、19 times air accumulator 1 recycles、Heavy constituent at the bottom of distillation column 10 and the light component of rectifying column 20 tower top and tower returns the second material storage tank 11 respectively、3 material storage tank 12.
Described whole pipeline is heat-resisting, pressure, resistant to hydrogen corrosion material.
Described dosing pump and compressor are that explosion-proof type, centrifugal pump are asked into canned motor pump and for heat-resisting, pressure, resistant material manufacture.
Described: the first storage tank, the second material storage tank, 3 material storage tank, feed preheater, desulfurizer, reactor, separator, distillation column, rectifying column are heat-resisting, pressure, resistant material manufacture.
The particular content using this new device to produce the different decahydronaphthalenes product most preferred embodiment along inverse ratio content is further illustrated below in conjunction with accompanying drawing:
1. enter batching kettle 14 after being configured by certain mass percent with refined naphthalene by the raw material of the first storage tank 3 and form material liquid, by 4 with slough the impurity such as the sulfide that can make catalyst poisoning from air accumulator 1 via 6 through the gas-liquid mixed materials of 2 compressions after enter 7, wherein can load A system or B series catalysts in 7, the operating cost adopting A series catalysts product is higher than the operating cost adopting B series catalysts, and it is total to adopt B series catalysts plant construction gross investment to be higher than employing A series catalysts plant construction.
2. after plant running is stablized, the outlet material of 7 can be used for heating the material liquid of 5, thus reducing heat consumption supply to save product cost, the exit gas of 7 after refrigerated separation return 1 recycle, liquid material is directly entered 10 and carries out predistillation and obtain primary product (or technical grade product).
3. after sending into 20 from the primary product of 10 or 11,20 rectifications under vacuum under vacuum, add heat and the backflow of tower top gas-liquid by accurately regulating and controlling 20 bottom steams, the decahydronaphthalenes series of products of different ratio isomer can be obtained.
Claims (4)
- null1. a novel decahydronaphthalenes isomer different ratio series of products process units，It is characterized in that，Also include: the first storage tank (3)、Air accumulator (1)、Compressor (2)、Dosing pump (4)、Feed preheater (5)、Desulfurizer (6)、Reactor (7)、Separator (8)、Cooler (9)、Distillation column (10)、Rectifying column (20)、Second material storage tank (11)、3 material storage tank (12)，First storage tank (3) has excessive batching kettle (14) between dosing pump (4)、Medium pressure gas surge tank (13) is had between air accumulator (1) and compressor (2)、The thermal source of feed preheater (5) carrys out high-grade energy gas-liquid mixed product (15) that autoreactor (7) exports、Desulfurizer (6) has middle pressure steam (16) to carry out tracing thermal-insulating、Reactor (7) has high-efficiency heat conduction oil system (17) provide thermal source and remove reaction heat、Separator (8) and cooler (9) gaseous component (18、19) return air accumulator (1) to recycle、Heavy constituent at the bottom of distillation column (10) and the light component of rectifying column (20) tower top and tower returns the second material storage tank (11) respectively、3 material storage tank (12).
- 2. a kind of decahydronaphthalenes isomer different ratio series of products process units according to claim 1, it is characterised in that described whole pipelines are heat-resisting, pressure, resistant to hydrogen corrosion material.
- 3. a kind of decahydronaphthalenes isomer different ratio series of products process units according to claim 1, it is characterised in that described dosing pump and compressor are that explosion-proof type, centrifugal pump are asked into canned motor pump and for heat-resisting, pressure, resistant material manufacture.
- 4. a kind of decahydronaphthalenes isomer different ratio series of products process units according to claim 1, it is characterized in that, described in: the first storage tank, the second material storage tank, 3 material storage tank, feed preheater, desulfurizer, reactor, separator, distillation column, rectifying column are heat-resisting, pressure, resistant material manufacture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410748960.6A CN105732290A (en) | 2014-12-10 | 2014-12-10 | Novel production device of series products of decalin isomers at different ratios |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410748960.6A CN105732290A (en) | 2014-12-10 | 2014-12-10 | Novel production device of series products of decalin isomers at different ratios |
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| CN105732290A true CN105732290A (en) | 2016-07-06 |
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| CN201410748960.6A Pending CN105732290A (en) | 2014-12-10 | 2014-12-10 | Novel production device of series products of decalin isomers at different ratios |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107814677A (en) * | 2016-09-14 | 2018-03-20 | 中国石油化工股份有限公司 | A kind of process units and method of decahydronaphthalenes isomers |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4935370A (en) * | 1972-07-29 | 1974-04-01 | ||
| CN1733663A (en) * | 2005-08-10 | 2006-02-15 | 中国石油化工集团公司 | Decahydronaphthalene continuous hydrogenation synthesis method |
-
2014
- 2014-12-10 CN CN201410748960.6A patent/CN105732290A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4935370A (en) * | 1972-07-29 | 1974-04-01 | ||
| CN1733663A (en) * | 2005-08-10 | 2006-02-15 | 中国石油化工集团公司 | Decahydronaphthalene continuous hydrogenation synthesis method |
Non-Patent Citations (1)
| Title |
|---|
| 谭凤宜: "《固定床法萘催化加氢合成十氢萘工艺研究》", 《中国优秀博硕士学位论文全文数据库（硕士）工程科技I辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107814677A (en) * | 2016-09-14 | 2018-03-20 | 中国石油化工股份有限公司 | A kind of process units and method of decahydronaphthalenes isomers |
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Application publication date: 20160706 |
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