CN107200673A - A kind of xylene production device - Google Patents
A kind of xylene production device Download PDFInfo
- Publication number
- CN107200673A CN107200673A CN201710552061.2A CN201710552061A CN107200673A CN 107200673 A CN107200673 A CN 107200673A CN 201710552061 A CN201710552061 A CN 201710552061A CN 107200673 A CN107200673 A CN 107200673A
- Authority
- CN
- China
- Prior art keywords
- reactor
- tower
- condenser
- pipeline
- toluene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000008096 xylene Substances 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 57
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims abstract description 30
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 238000009833 condensation Methods 0.000 claims abstract description 8
- 230000005494 condensation Effects 0.000 claims abstract description 8
- 239000001257 hydrogen Substances 0.000 claims description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- HIVLDXAAFGCOFU-UHFFFAOYSA-N ammonium hydrosulfide Chemical compound [NH4+].[SH-] HIVLDXAAFGCOFU-UHFFFAOYSA-N 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 claims description 3
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 claims description 3
- 239000012071 phase Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000005194 fractionation Methods 0.000 claims description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000004508 fractional distillation Methods 0.000 abstract description 2
- 238000010517 secondary reaction Methods 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 150000003738 xylenes Chemical class 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/005—Processes comprising at least two steps in series
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/09—Purification; Separation; Use of additives by fractional condensation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
- C07C7/163—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound by hydrogenation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a kind of xylene production device, belong to xylene production apparatus field, including surge tank, heater, first reactor, second reactor, condenser, except light tower, main fractionating tower, toluene tower, benzenol hydrorefining and diformazan benzene condenser, surge tank is connected by pipeline with heater, heater is connected by pipeline with first reactor, first reactor connects second reactor, second reactor connects condenser by pipeline, condenser connection removes light tower, except light tower connects main fractionating tower, main fractionating tower is connected with toluene tower and benzenol hydrorefining respectively by pipeline, benzenol hydrorefining connects diformazan benzene condenser by pipeline.The xylene production apparatus structure of the present invention is simple, and synthesis step is few, and raw material is condensed after primary and secondary reaction by condenser, and toluene and dimethylbenzene are gone out by fractionating column straight fractional distillation after condensation.
Description
Technical field
The present invention relates to xylene production apparatus field, specifically, the present invention relates to a kind of xylene production dress
Put.
Background technology
Dimethylbenzene is colourless transparent liquid, be on phenyl ring two hydrogen by methyl substituted product, exist it is o-, m-, to three kinds
Isomers, industrially, dimethylbenzene are the mixture for referring to above-mentioned isomers.Dimethylbenzene tool penetrating odor, inflammable, with ethanol,
Chloroform or ether can be mixed arbitrarily, insoluble in water.Plastics, fuel, rubber, the additive of various coating and various gluing
In agent, waterproof material, the burning gases of fuel and tobacco leaf are may also come from.It is widely used in the industries such as coating, resin, dyestuff, ink
Make solvent；Synthon or solvent are done for industries such as medicine, explosive, agricultural chemicals；Also can be to have as high octane gasoline component
The important source material of machine chemical industry.It can be also used for removing the pitch of vehicle body.Hospital pathology department be mainly used in tissue, section it is transparent and
Dewaxing.Industrial ortho-xylene be raw material, first with industry the concentrated sulfuric acid wash colourless to acid layer, then successively with 10% sodium hydroxide solution,
Water washing is separated after water layer and dried with anhydrous calcium chloride, then rectifying after thing to be distillated is limpid, collects midbarrel to qualified,
As sterling.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of xylene production device and are used to produce dimethylbenzene.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：A kind of xylene production device, including
Surge tank, heater, first reactor, second reactor, condenser, except light tower, main fractionating tower, toluene tower, benzenol hydrorefining and
Diformazan benzene condenser, the surge tank is connected by pipeline with heater, and heater is connected by pipeline with first reactor, the
One reactor connects second reactor, and second reactor connects condenser by pipeline, and condenser connection removes light tower, except light tower connects
Main fractionating tower is connect, main fractionating tower is connected with toluene tower and benzenol hydrorefining respectively by pipeline, benzenol hydrorefining connects two by pipeline
Toluene condenser.
It is preferred that, in addition to storage tank, the diformazan benzene condenser connects storage tank by pipeline.
This xylene production method, comprises the following steps：
（1）Raw material enters heater, raw material cyclohexane, toluene, dimethylbenzene in heater after being pressurizeed into surge tank through pump
Gas phase is changed into from liquid phase after heated etc. component and enters first reactor, hydrogen is passed through by first reactor bottom；
（2）Enter second reactor through the reacted compound of first reactor, the sulfur impurity in second reactor in raw material
Nitrogen oxygen etc. generates hydrogen sulfide ammoniacal liquor etc. with hydrogen reaction, enters after the condensed device condensation of reacting rear material except light tower removes hydrogen sulfide
Ammonia etc.；
（3）Obtain qualified except light oil enters main fractionation after the condensation of condensed device, in main fractionating tower toluene and dimethylbenzene etc. from
Tower reactor is separated pressurizeed through pump after enter toluene tower, dimethylbenzene is separated by tower reactor enters benzenol hydrorefining, and tower top side line is obtained
Storage tank is delivered in pump pressurization after being condensed to qualified xylene product through diformazan benzene condenser.
Using technical scheme, following beneficial effect can be obtained：
The xylene production apparatus structure of the present invention is simple, and synthesis step is few, and raw material is after primary and secondary reaction by condensing
Device is condensed, and toluene and dimethylbenzene are gone out by fractionating column straight fractional distillation after condensation.
Brief description of the drawings
Brief description is made to the content expressed by each accompanying drawing of this specification and the mark in figure below：
Fig. 1 is the structured flowchart of this xylene production device；
Mark in above-mentioned figure is：1st, surge tank；2nd, heater；3rd, first reactor；4th, second reactor；5th, condenser；
6th, except light tower；7th, main fractionating tower；8th, toluene tower；9th, benzenol hydrorefining；10th, diformazan benzene condenser；11st, storage tank.
Embodiment
Below against accompanying drawing, by the description to embodiment, to the embodiment of the present invention such as involved each structure
Mutual alignment and annexation, the effect of each several part and operation principle between the shape of part, construction, each several part etc. are made further
Detailed description.
As shown in figure 1, raw material enters heater 2, the hexamethylene in heater in raw material after being pressurizeed into surge tank 1 through pump
Gas phase is changed into first reactor 3 from liquid phase after the component of mixture such as alkane, toluene, dimethylbenzene are heated, hydrogen is anti-by first
The bottom of device 3 is answered to enter, the unsaturated hydrocarbons in first reactor 3 in raw material and hydrogen reaction generation saturated hydrocarbons prevent pipeline from blocking up
Plug；Subsequently into second reactor 4, the sulfur impurity nitrogen oxygen in second reactor 4 in raw material etc. and hydrogen reaction generation vulcanization
Hydrogen ammoniacal liquor etc., the condensed device 5 of reacting rear material enters after condensing except light tower 6 removing hydrogen sulfide ammonia etc., obtains qualified removing light oil
Into main fractionating tower 7 in main fractionating tower 7 toluene and dimethylbenzene etc. separated from tower reactor pressurizeed through pump after enter toluene tower 8,
Dimethylbenzene is separated into benzenol hydrorefining 9 by tower reactor, and tower top side line obtains qualified xylene product through diformazan benzene condenser
Storage tank 11 is delivered in pump pressurization after 10 condensations.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the present invention is implemented not by aforesaid way
Limitation, as long as the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress is employed, or without changing
Enter and the design of the present invention and technical scheme are directly applied into other occasions, within protection scope of the present invention.
Claims (3)
1. a kind of xylene production device, it is characterised in that：Including surge tank, heater, first reactor, second reactor,
Condenser, except light tower, main fractionating tower, toluene tower, benzenol hydrorefining and diformazan benzene condenser, the surge tank passes through pipeline and heating
Device is connected, and heater is connected by pipeline with first reactor, and first reactor connection second reactor, second reactor passes through
Pipeline connect condenser, condenser connection remove light tower, except light tower connect main fractionating tower, main fractionating tower by pipeline respectively with toluene
Tower and benzenol hydrorefining connection, benzenol hydrorefining connect diformazan benzene condenser by pipeline.
2. xylene production device according to claim 1, it is characterised in that：Also include storage tank, the dimethylbenzene condensation
Device connects storage tank by pipeline.
3. a kind of xylene production method, it is characterised in that comprise the following steps：
（1）Raw material enters heater, raw material cyclohexane, toluene, dimethylbenzene in heater after being pressurizeed into surge tank through pump
Gas phase is changed into from liquid phase after heated etc. component and enters first reactor, hydrogen is passed through by first reactor bottom；
（2）Enter second reactor through the reacted compound of first reactor, the sulfur impurity in second reactor in raw material
Nitrogen oxygen etc. generates hydrogen sulfide ammoniacal liquor etc. with hydrogen reaction, enters after the condensed device condensation of reacting rear material except light tower removes hydrogen sulfide
Ammonia etc.；
（3）Obtain qualified except light oil enters main fractionation after the condensation of condensed device, in main fractionating tower toluene and dimethylbenzene etc. from
Tower reactor is separated pressurizeed through pump after enter toluene tower, dimethylbenzene is separated by tower reactor enters benzenol hydrorefining, and tower top side line is obtained
Storage tank is delivered in pump pressurization after being condensed to qualified xylene product through diformazan benzene condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710552061.2A CN107200673A (en) | 2017-07-07 | 2017-07-07 | A kind of xylene production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710552061.2A CN107200673A (en) | 2017-07-07 | 2017-07-07 | A kind of xylene production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107200673A true CN107200673A (en) | 2017-09-26 |
Family
ID=59910838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710552061.2A Pending CN107200673A (en) | 2017-07-07 | 2017-07-07 | A kind of xylene production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107200673A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6407303B1 (en) * | 2000-09-26 | 2002-06-18 | Uop Llc | Isomerization process with adsorptive separation and integrated fractional distillation |
| CN101445420A (en) * | 2008-12-25 | 2009-06-03 | 上海奥韦通工程技术有限公司 | Process for preparing benzene aromatic hydrocarbon by crude benzene |
| CN203469516U (en) * | 2013-09-11 | 2014-03-12 | 福建青松股份有限公司 | Device for recycling xylene in camphor synthesized by using ester-soap method |
| CN103819297A (en) * | 2012-11-16 | 2014-05-28 | 东洋工程株式会社 | Aromatic hydrocarbon production apparatus |
| CN104692995A (en) * | 2015-02-04 | 2015-06-10 | 沾化瑜凯新材料科技有限公司 | Process for producing benzene, methylbenzene and xylene from crude benzene |
| CN105837389A (en) * | 2015-01-14 | 2016-08-10 | 中国石油化工股份有限公司 | Method of producing p-xylene and heat exchanger network therein |
| CN106916044A (en) * | 2015-12-24 | 2017-07-04 | 上海宝钢化工有限公司 | A kind of method for refining carbonization crude benzole |
| CN207130180U (en) * | 2017-07-07 | 2018-03-23 | 安徽卓泰化工科技有限公司 | A kind of xylene production device |
-
2017
- 2017-07-07 CN CN201710552061.2A patent/CN107200673A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6407303B1 (en) * | 2000-09-26 | 2002-06-18 | Uop Llc | Isomerization process with adsorptive separation and integrated fractional distillation |
| CN101445420A (en) * | 2008-12-25 | 2009-06-03 | 上海奥韦通工程技术有限公司 | Process for preparing benzene aromatic hydrocarbon by crude benzene |
| CN103819297A (en) * | 2012-11-16 | 2014-05-28 | 东洋工程株式会社 | Aromatic hydrocarbon production apparatus |
| CN203469516U (en) * | 2013-09-11 | 2014-03-12 | 福建青松股份有限公司 | Device for recycling xylene in camphor synthesized by using ester-soap method |
| CN105837389A (en) * | 2015-01-14 | 2016-08-10 | 中国石油化工股份有限公司 | Method of producing p-xylene and heat exchanger network therein |
| CN104692995A (en) * | 2015-02-04 | 2015-06-10 | 沾化瑜凯新材料科技有限公司 | Process for producing benzene, methylbenzene and xylene from crude benzene |
| CN106916044A (en) * | 2015-12-24 | 2017-07-04 | 上海宝钢化工有限公司 | A kind of method for refining carbonization crude benzole |
| CN207130180U (en) * | 2017-07-07 | 2018-03-23 | 安徽卓泰化工科技有限公司 | A kind of xylene production device |
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Application publication date: 20170926 |