DE1443623C3 - Verfahren zur Herstellung von Harnstoff - Google Patents
Verfahren zur Herstellung von HarnstoffInfo
- Publication number
- DE1443623C3 DE1443623C3 DE1443623A DE1443623A DE1443623C3 DE 1443623 C3 DE1443623 C3 DE 1443623C3 DE 1443623 A DE1443623 A DE 1443623A DE 1443623 A DE1443623 A DE 1443623A DE 1443623 C3 DE1443623 C3 DE 1443623C3
- Authority
- DE
- Germany
- Prior art keywords
- urea
- stream
- exhaust gas
- pressure
- synthesis
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 54
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 51
- 239000004202 carbamide Substances 0.000 title claims description 51
- 238000004519 manufacturing process Methods 0.000 title claims 2
- 239000007789 gas Substances 0.000 claims description 87
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 70
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 54
- 230000015572 biosynthetic process Effects 0.000 claims description 37
- 238000003786 synthesis reaction Methods 0.000 claims description 36
- 229910021529 ammonia Inorganic materials 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 239000001569 carbon dioxide Substances 0.000 claims description 27
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 27
- 230000006835 compression Effects 0.000 claims description 22
- 238000007906 compression Methods 0.000 claims description 22
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 15
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 10
- 238000004064 recycling Methods 0.000 claims description 10
- 238000000354 decomposition reaction Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 239000000376 reactant Substances 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims 2
- 239000007787 solid Substances 0.000 claims 2
- 238000005299 abrasion Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 239000003973 paint Substances 0.000 claims 1
- 230000002485 urinary effect Effects 0.000 claims 1
- 239000002912 waste gas Substances 0.000 claims 1
- 238000010626 work up procedure Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 description 14
- 239000007788 liquid Substances 0.000 description 13
- 239000000498 cooling water Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 239000007791 liquid phase Substances 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 210000002700 urine Anatomy 0.000 description 4
- 239000012071 phase Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000006193 liquid solution Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- NPPQSCRMBWNHMW-UHFFFAOYSA-N Meprobamate Chemical compound NC(=O)OCC(C)(CCC)COC(N)=O NPPQSCRMBWNHMW-UHFFFAOYSA-N 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000010936 aqueous wash Methods 0.000 description 1
- ZEYWAHILTZGZBH-UHFFFAOYSA-N azane;carbon dioxide Chemical compound N.O=C=O ZEYWAHILTZGZBH-UHFFFAOYSA-N 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- -1 produced at 121 C Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
- C07C273/04—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds from carbon dioxide and ammonia
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US246747A US3232985A (en) | 1962-12-24 | 1962-12-24 | Urea synthesis process |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE1443623A1 DE1443623A1 (de) | 1968-10-31 |
| DE1443623B2 DE1443623B2 (de) | 1973-07-26 |
| DE1443623C3 true DE1443623C3 (de) | 1974-02-28 |
Family
ID=22932026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1443623A Expired DE1443623C3 (de) | 1962-12-24 | 1963-12-23 | Verfahren zur Herstellung von Harnstoff |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3232985A (enExample) |
| BE (1) | BE641762A (enExample) |
| DE (1) | DE1443623C3 (enExample) |
| ES (1) | ES294808A1 (enExample) |
| GB (1) | GB1032440A (enExample) |
| NL (2) | NL138774B (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES318356A1 (es) * | 1964-10-16 | 1966-05-16 | Toyo Koatsu Ind Incorporated | Metodo de depuracion de un efluente en la obtencion de urea sintetica. |
| US3506710A (en) * | 1966-10-14 | 1970-04-14 | Toyo Koatsu Ind Inc | Urea synthesis process with solution recycle |
| US3593491A (en) * | 1969-05-21 | 1971-07-20 | Fluor Corp | Ammonia plant carbon dioxide absorption and compression |
| CN110590605B (zh) * | 2019-10-11 | 2021-08-24 | 重庆化工职业学院 | 一种氨基甲酸甲酯的生产方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1429483A (en) * | 1920-07-09 | 1922-09-19 | Basf Ag | Process of manufacturing urea |
| FR988833A (fr) * | 1945-03-15 | 1951-08-31 | Gobey Lab | Procédé d'isomérisation de corps appartenant à la série du phényl-chromane |
| US3155722A (en) * | 1960-01-29 | 1964-11-03 | Chemical Construction Corp | Recovery of residual ammonia and carbon dioxide in the synthesis of urea |
-
0
- NL NL302169D patent/NL302169A/xx unknown
-
1962
- 1962-12-24 US US246747A patent/US3232985A/en not_active Expired - Lifetime
-
1963
- 1963-12-12 GB GB49100/63A patent/GB1032440A/en not_active Expired
- 1963-12-18 NL NL63302169A patent/NL138774B/xx unknown
- 1963-12-23 DE DE1443623A patent/DE1443623C3/de not_active Expired
- 1963-12-23 ES ES294808A patent/ES294808A1/es not_active Expired
- 1963-12-24 BE BE641762D patent/BE641762A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1443623B2 (de) | 1973-07-26 |
| US3232985A (en) | 1966-02-01 |
| NL138774B (nl) | 1973-05-15 |
| ES294808A1 (es) | 1964-06-01 |
| GB1032440A (en) | 1966-06-08 |
| DE1443623A1 (de) | 1968-10-31 |
| BE641762A (enExample) | 1964-06-24 |
| NL302169A (enExample) | 1900-01-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| SH | Request for examination between 03.10.1968 and 22.04.1971 | ||
| C3 | Grant after two publication steps (3rd publication) |