CA1144179A - Urea synthesis process - Google Patents
Urea synthesis processInfo
- Publication number
- CA1144179A CA1144179A CA000378090A CA378090A CA1144179A CA 1144179 A CA1144179 A CA 1144179A CA 000378090 A CA000378090 A CA 000378090A CA 378090 A CA378090 A CA 378090A CA 1144179 A CA1144179 A CA 1144179A
- Authority
- CA
- Canada
- Prior art keywords
- stream
- separator
- gaseous
- urea
- pressure
- 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
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 239000004202 carbamide Substances 0.000 title claims abstract description 55
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 26
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 20
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 94
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 48
- 239000007789 gas Substances 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 26
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims abstract description 20
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 17
- 239000007791 liquid phase Substances 0.000 claims abstract description 13
- 239000007792 gaseous phase Substances 0.000 claims abstract description 11
- 239000012071 phase Substances 0.000 claims abstract description 5
- 230000000630 rising effect Effects 0.000 claims abstract description 3
- 239000012263 liquid product Substances 0.000 claims abstract 5
- 239000000047 product Substances 0.000 claims abstract 4
- 125000004122 cyclic group Chemical group 0.000 claims abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 77
- 229910001868 water Inorganic materials 0.000 claims description 43
- 229910021529 ammonia Inorganic materials 0.000 claims description 22
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 19
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 19
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims description 16
- 238000004064 recycling Methods 0.000 claims description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims 1
- 239000001099 ammonium carbonate Substances 0.000 claims 1
- 235000012501 ammonium carbonate Nutrition 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000000243 solution Substances 0.000 description 22
- 238000006243 chemical reaction Methods 0.000 description 12
- 239000000203 mixture Substances 0.000 description 12
- 238000000354 decomposition reaction Methods 0.000 description 8
- 238000011084 recovery Methods 0.000 description 8
- 238000009833 condensation Methods 0.000 description 7
- 230000005494 condensation Effects 0.000 description 7
- 238000012856 packing Methods 0.000 description 7
- 239000002826 coolant Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 208000036366 Sensation of pressure Diseases 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000779 depleting effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US152,534 | 1980-05-23 | ||
| US06/152,534 US4296252A (en) | 1980-05-23 | 1980-05-23 | Urea synthesis process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1144179A true CA1144179A (en) | 1983-04-05 |
Family
ID=22543332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000378090A Expired CA1144179A (en) | 1980-05-23 | 1981-05-22 | Urea synthesis process |
Country Status (4)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5867661A (ja) * | 1981-10-16 | 1983-04-22 | Mitsui Toatsu Chem Inc | 尿素合成法 |
| IT1232669B (it) * | 1989-09-15 | 1992-03-02 | Snam Progetti | Procedimento per la produzione di urea con elevato rendimento energetico. |
| IT1271435B (it) * | 1993-03-10 | 1997-05-28 | Snam Progetti | Procedimento per la sintesi di urea da ammoniaca e anidride carbonica a conversione totale in anidride carbonica |
| US5597454A (en) * | 1995-04-06 | 1997-01-28 | Lee; Jing M. | Process for producing urea |
| EP3398935A1 (en) * | 2017-05-05 | 2018-11-07 | Casale Sa | Process and plant for the synthesis of urea |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3579636A (en) * | 1968-05-16 | 1971-05-18 | Ivo Mavrovic | Urea synthesis process |
| US3886210A (en) * | 1970-06-29 | 1975-05-27 | Ivo Mavrovic | Urea synthesis with improved heat recovery and ammonium carbamate recirculation |
| US3759992A (en) * | 1970-06-29 | 1973-09-18 | I Mavrovic | Urea synthesis |
| US4088685A (en) * | 1971-10-19 | 1978-05-09 | Ivo Mavrovic | Urea synthesis with improved heat recovery and conversion |
-
1980
- 1980-05-23 US US06/152,534 patent/US4296252A/en not_active Expired - Lifetime
-
1981
- 1981-05-22 CA CA000378090A patent/CA1144179A/en not_active Expired
- 1981-05-22 AR AR285435A patent/AR226896A1/es active
- 1981-05-23 IN IN544/CAL/81A patent/IN155451B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US4296252A (en) | 1981-10-20 |
| IN155451B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1985-02-02 |
| AR226896A1 (es) | 1982-08-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |