CA1110659A - Integrated ammonia-urea process - Google Patents
Integrated ammonia-urea processInfo
- Publication number
- CA1110659A CA1110659A CA323,007A CA323007A CA1110659A CA 1110659 A CA1110659 A CA 1110659A CA 323007 A CA323007 A CA 323007A CA 1110659 A CA1110659 A CA 1110659A
- Authority
- CA
- Canada
- Prior art keywords
- urea
- carbamate
- ammonia
- solution
- stream
- 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 14
- PPBAJDRXASKAGH-UHFFFAOYSA-N azane;urea Chemical compound N.NC(N)=O PPBAJDRXASKAGH-UHFFFAOYSA-N 0.000 title claims abstract description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 75
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000004202 carbamide Substances 0.000 claims abstract description 44
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 28
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 27
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims abstract description 24
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 20
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims abstract description 16
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910001868 water Inorganic materials 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims abstract description 8
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000001099 ammonium carbonate Substances 0.000 claims abstract description 7
- 235000012501 ammonium carbonate Nutrition 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 4
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 4
- 230000002211 methanization Effects 0.000 claims abstract description 4
- 238000000629 steam reforming Methods 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 29
- 239000007864 aqueous solution Substances 0.000 claims description 18
- 238000000354 decomposition reaction Methods 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 2
- 239000012808 vapor phase Substances 0.000 claims description 2
- 230000009102 absorption Effects 0.000 claims 3
- 238000001179 sorption measurement Methods 0.000 claims 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 24
- 239000007789 gas Substances 0.000 abstract description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 12
- 239000001569 carbon dioxide Substances 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 6
- 229960000510 ammonia Drugs 0.000 abstract 4
- 239000001257 hydrogen Substances 0.000 abstract 3
- 229910052739 hydrogen Inorganic materials 0.000 abstract 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 abstract 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- 229940059913 ammonium carbonate Drugs 0.000 abstract 1
- 235000011114 ammonium hydroxide Nutrition 0.000 abstract 1
- 150000002431 hydrogen Chemical class 0.000 abstract 1
- 239000006096 absorbing agent Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000036366 Sensation of pressure Diseases 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000011282 treatment 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 |
|---|---|---|---|
| IT21993/78A IT1094295B (it) | 1978-04-05 | 1978-04-05 | Procedimento integrato ammoniaca-urea |
| IT21993A/78 | 1978-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1110659A true CA1110659A (en) | 1981-10-13 |
Family
ID=11189914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA323,007A Expired CA1110659A (en) | 1978-04-05 | 1979-03-08 | Integrated ammonia-urea process |
Country Status (23)
| Country | Link |
|---|---|
| JP (1) | JPS54132525A (cs) |
| AU (1) | AU519817B2 (cs) |
| BE (1) | BE875346A (cs) |
| BR (1) | BR7902122A (cs) |
| CA (1) | CA1110659A (cs) |
| CH (1) | CH637633A5 (cs) |
| CS (1) | CS230563B2 (cs) |
| DD (1) | DD142709A5 (cs) |
| DE (1) | DE2913793C3 (cs) |
| DK (1) | DK139179A (cs) |
| EG (1) | EG13847A (cs) |
| ES (1) | ES479940A1 (cs) |
| FR (1) | FR2421847A1 (cs) |
| GB (1) | GB2018249B (cs) |
| IE (1) | IE48099B1 (cs) |
| IN (1) | IN150631B (cs) |
| IT (1) | IT1094295B (cs) |
| LU (1) | LU81113A1 (cs) |
| MX (1) | MX151216A (cs) |
| NL (1) | NL7902566A (cs) |
| PL (1) | PL116665B1 (cs) |
| SE (1) | SE432591B (cs) |
| SU (1) | SU1225485A3 (cs) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61109760A (ja) * | 1984-11-02 | 1986-05-28 | Toyo Eng Corp | 尿素製造法 |
| DE102016203277A1 (de) * | 2016-02-29 | 2017-08-31 | Thyssenkrupp Ag | Integrierte Synthese von Ammoniak und Harnstoff |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4832091B1 (cs) * | 1968-02-12 | 1973-10-04 | ||
| IT1014987B (it) * | 1974-06-12 | 1977-04-30 | Snam Progetti | Procedimento integrato urea am moniaca |
| IT1034674B (it) * | 1975-03-28 | 1979-10-10 | Snam Progetti | Processo flessibile intergrato per la produzione di ammoniaca edurea |
| IT1065422B (it) * | 1976-12-23 | 1985-02-25 | Snam Progetti | Processo ammoniaca-urea integrato per la produzione di urea |
-
1978
- 1978-04-05 IT IT21993/78A patent/IT1094295B/it active
-
1979
- 1979-03-07 AU AU44876/79A patent/AU519817B2/en not_active Ceased
- 1979-03-08 CA CA323,007A patent/CA1110659A/en not_active Expired
- 1979-03-15 GB GB7909086A patent/GB2018249B/en not_active Expired
- 1979-03-24 IN IN289/CAL/79A patent/IN150631B/en unknown
- 1979-03-28 EG EG195/79A patent/EG13847A/xx active
- 1979-03-28 FR FR7907848A patent/FR2421847A1/fr active Granted
- 1979-03-29 JP JP3633279A patent/JPS54132525A/ja active Pending
- 1979-03-30 ES ES479940A patent/ES479940A1/es not_active Expired
- 1979-04-02 NL NL7902566A patent/NL7902566A/xx not_active Application Discontinuation
- 1979-04-03 DD DD79211973A patent/DD142709A5/de unknown
- 1979-04-03 PL PL1979214649A patent/PL116665B1/pl unknown
- 1979-04-03 LU LU81113A patent/LU81113A1/xx unknown
- 1979-04-04 SE SE7903018A patent/SE432591B/sv not_active IP Right Cessation
- 1979-04-04 SU SU792749003A patent/SU1225485A3/ru active
- 1979-04-04 CH CH313979A patent/CH637633A5/it not_active IP Right Cessation
- 1979-04-04 DK DK139179A patent/DK139179A/da not_active IP Right Cessation
- 1979-04-04 CS CS792292A patent/CS230563B2/cs unknown
- 1979-04-04 MX MX177195A patent/MX151216A/es unknown
- 1979-04-05 BE BE0/194424A patent/BE875346A/xx not_active IP Right Cessation
- 1979-04-05 BR BR7902122A patent/BR7902122A/pt unknown
- 1979-04-05 DE DE2913793A patent/DE2913793C3/de not_active Expired
- 1979-08-08 IE IE706/79A patent/IE48099B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL7902566A (nl) | 1979-10-09 |
| SU1225485A3 (ru) | 1986-04-15 |
| GB2018249A (en) | 1979-10-17 |
| IT1094295B (it) | 1985-07-26 |
| DK139179A (da) | 1979-10-06 |
| CS230563B2 (en) | 1984-08-13 |
| FR2421847B1 (cs) | 1982-10-22 |
| MX151216A (es) | 1984-10-11 |
| PL116665B1 (en) | 1981-06-30 |
| CH637633A5 (it) | 1983-08-15 |
| DE2913793A1 (de) | 1979-10-11 |
| PL214649A1 (pl) | 1979-12-17 |
| AU519817B2 (en) | 1981-12-24 |
| DE2913793B2 (de) | 1980-06-04 |
| DE2913793C3 (de) | 1981-05-27 |
| ES479940A1 (es) | 1979-12-01 |
| FR2421847A1 (fr) | 1979-11-02 |
| BE875346A (fr) | 1979-10-05 |
| LU81113A1 (fr) | 1979-06-19 |
| AU4487679A (en) | 1979-10-18 |
| IE790706L (en) | 1979-10-05 |
| EG13847A (en) | 1982-12-31 |
| JPS54132525A (en) | 1979-10-15 |
| IT7821993A0 (it) | 1978-04-05 |
| BR7902122A (pt) | 1979-12-04 |
| DD142709A5 (de) | 1980-07-09 |
| GB2018249B (en) | 1982-09-02 |
| IE48099B1 (en) | 1984-09-19 |
| SE7903018L (sv) | 1979-10-06 |
| SE432591B (sv) | 1984-04-09 |
| IN150631B (cs) | 1982-11-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |