JPS6121548B2 - - Google Patents
Info
- Publication number
- JPS6121548B2 JPS6121548B2 JP55012007A JP1200780A JPS6121548B2 JP S6121548 B2 JPS6121548 B2 JP S6121548B2 JP 55012007 A JP55012007 A JP 55012007A JP 1200780 A JP1200780 A JP 1200780A JP S6121548 B2 JPS6121548 B2 JP S6121548B2
- Authority
- JP
- Japan
- Prior art keywords
- urea
- pressure
- mixed gas
- water
- ammonia
- 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
- 239000004202 carbamide Substances 0.000 claims description 115
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 114
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 113
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 92
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 52
- 229910001868 water Inorganic materials 0.000 claims description 50
- 229910021529 ammonia Inorganic materials 0.000 claims description 48
- 239000001569 carbon dioxide Substances 0.000 claims description 46
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 46
- 230000015572 biosynthetic process Effects 0.000 claims description 42
- 238000004821 distillation Methods 0.000 claims description 42
- 238000003786 synthesis reaction Methods 0.000 claims description 42
- 238000000926 separation method Methods 0.000 claims description 41
- 239000000243 solution Substances 0.000 claims description 25
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims description 19
- 239000007864 aqueous solution Substances 0.000 claims description 19
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 17
- 238000009833 condensation Methods 0.000 claims description 16
- 230000005494 condensation Effects 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 15
- 238000011084 recovery Methods 0.000 claims description 11
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 claims description 9
- 238000001308 synthesis method Methods 0.000 claims description 2
- 238000010992 reflux Methods 0.000 description 24
- 238000010521 absorption reaction Methods 0.000 description 18
- 239000000203 mixture Substances 0.000 description 11
- 238000001816 cooling Methods 0.000 description 8
- 230000002745 absorbent Effects 0.000 description 6
- 239000002250 absorbent Substances 0.000 description 6
- 239000000498 cooling water Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 5
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 5
- 239000013078 crystal Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 150000003672 ureas Chemical class 0.000 description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- JJEJDZONIFQNHG-UHFFFAOYSA-N [C+4].N Chemical compound [C+4].N JJEJDZONIFQNHG-UHFFFAOYSA-N 0.000 description 1
- MKKVKFWHNPAATH-UHFFFAOYSA-N [C].N Chemical compound [C].N MKKVKFWHNPAATH-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000008231 carbon dioxide-free water Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1200780A JPS56110662A (en) | 1980-02-05 | 1980-02-05 | Heat recovery in urea synthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1200780A JPS56110662A (en) | 1980-02-05 | 1980-02-05 | Heat recovery in urea synthesis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56110662A JPS56110662A (en) | 1981-09-01 |
| JPS6121548B2 true JPS6121548B2 (cs) | 1986-05-27 |
Family
ID=11793523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1200780A Granted JPS56110662A (en) | 1980-02-05 | 1980-02-05 | Heat recovery in urea synthesis |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56110662A (cs) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008239574A (ja) * | 2007-03-28 | 2008-10-09 | Mitsui Chemicals Inc | 高純度尿素水の製造方法 |
| CN101963470B (zh) * | 2010-10-27 | 2012-09-26 | 河南心连心化肥有限公司 | 尿素中压生产系统热能利用装置 |
-
1980
- 1980-02-05 JP JP1200780A patent/JPS56110662A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56110662A (en) | 1981-09-01 |
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