CA1247645A - Process for the manufacture of urea having a low steam comsumption - Google Patents
Process for the manufacture of urea having a low steam comsumptionInfo
- Publication number
- CA1247645A CA1247645A CA000458667A CA458667A CA1247645A CA 1247645 A CA1247645 A CA 1247645A CA 000458667 A CA000458667 A CA 000458667A CA 458667 A CA458667 A CA 458667A CA 1247645 A CA1247645 A CA 1247645A
- Authority
- CA
- Canada
- Prior art keywords
- stripper
- vapors
- solution
- leaving
- isobaric
- 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 abstract description 42
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000004202 carbamide Substances 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 238000011084 recovery Methods 0.000 claims abstract description 38
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims abstract description 23
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 21
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 19
- 238000012261 overproduction Methods 0.000 claims abstract description 6
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims abstract description 4
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011552 falling film Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 5
- 238000005201 scrubbing Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 claims description 3
- 101000874364 Homo sapiens Protein SCO2 homolog, mitochondrial Proteins 0.000 claims 2
- 102100035546 Protein SCO2 homolog, mitochondrial Human genes 0.000 claims 2
- 238000009833 condensation Methods 0.000 abstract description 8
- 230000005494 condensation Effects 0.000 abstract description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 45
- 239000000243 solution Substances 0.000 description 32
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 31
- 229910002092 carbon dioxide Inorganic materials 0.000 description 25
- 229910001868 water Inorganic materials 0.000 description 7
- 239000003643 water by type Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000002421 finishing Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 101150034533 ATIC gene Proteins 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 125000000205 L-threonino group Chemical group [H]OC(=O)[C@@]([H])(N([H])[*])[C@](C([H])([H])[H])([H])O[H] 0.000 description 1
- 241001080526 Vertica Species 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000000063 preceeding effect Effects 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 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 |
|---|---|---|---|
| IT22073/83A IT1163783B (it) | 1983-07-14 | 1983-07-14 | Processo per la produzione di urea con bassi consumi di vapore |
| IT22073A/83 | 1983-07-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1247645A true CA1247645A (en) | 1988-12-28 |
Family
ID=11191068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000458667A Expired CA1247645A (en) | 1983-07-14 | 1984-07-11 | Process for the manufacture of urea having a low steam comsumption |
Country Status (10)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH082859B2 (ja) * | 1987-02-24 | 1996-01-17 | 東洋エンジニアリング株式会社 | 尿素製造方法 |
| NL8800284A (nl) * | 1988-02-08 | 1989-09-01 | Stamicarbon | Werkwijze voor de bereiding van ureum. |
| EP3459932A1 (en) * | 2012-05-03 | 2019-03-27 | Stamicarbon B.V. | Urea production plant |
| EA202191768A1 (ru) * | 2018-12-21 | 2021-08-11 | Стамикарбон Б.В. | Способ и установка для производства карбамида с интеграцией тепла в секции регенерации низкого давления |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL101446C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1960-04-08 | |||
| US3954861A (en) * | 1968-02-05 | 1976-05-04 | Snamprogetti S.P.A | Process for producing urea |
| NO150512C (no) * | 1977-05-05 | 1984-10-31 | Montedison Spa | Fremgangsmaate ved fremstilling av urea. |
| IT1212524B (it) * | 1982-06-08 | 1989-11-30 | Montedison Spa | Procedimento perfezionato per il trasferimento, dalla fase liquida alla fase gassosa, dell'ammoniaca in eccesso contenuta in soluzioni acquose di urea. |
-
1983
- 1983-07-14 IT IT22073/83A patent/IT1163783B/it active
-
1984
- 1984-07-10 IN IN492/CAL/84A patent/IN161472B/en unknown
- 1984-07-10 EP EP84401454A patent/EP0132194B1/en not_active Expired
- 1984-07-10 DE DE8484401454T patent/DE3475616D1/de not_active Expired
- 1984-07-10 PT PT78875A patent/PT78875B/pt not_active IP Right Cessation
- 1984-07-11 CA CA000458667A patent/CA1247645A/en not_active Expired
- 1984-07-12 AR AR84297183A patent/AR242780A1/es active
- 1984-07-13 BR BR8403519A patent/BR8403519A/pt not_active IP Right Cessation
- 1984-07-13 ES ES534303A patent/ES8600633A1/es not_active Expired
- 1984-07-13 JP JP59144552A patent/JPS6041654A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| IN161472B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1987-12-12 |
| DE3475616D1 (en) | 1989-01-19 |
| IT1163783B (it) | 1987-04-08 |
| EP0132194A2 (en) | 1985-01-23 |
| AR242780A1 (es) | 1993-05-31 |
| ES534303A0 (es) | 1985-10-16 |
| EP0132194A3 (en) | 1986-10-01 |
| EP0132194B1 (en) | 1988-12-14 |
| PT78875B (en) | 1986-07-22 |
| ES8600633A1 (es) | 1985-10-16 |
| JPS6041654A (ja) | 1985-03-05 |
| PT78875A (en) | 1984-08-01 |
| JPH0566380B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1993-09-21 |
| IT8322073A0 (it) | 1983-07-14 |
| BR8403519A (pt) | 1985-06-25 |
| IT8322073A1 (it) | 1985-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |