IT1037576B - Ammonium carbonate condensation in urea synthesis - by contacting liq. and vapour phases in a horizontal heat exchanger (NL261076) - Google Patents
Ammonium carbonate condensation in urea synthesis - by contacting liq. and vapour phases in a horizontal heat exchanger (NL261076)Info
- Publication number
- IT1037576B IT1037576B IT2261575A IT2261575A IT1037576B IT 1037576 B IT1037576 B IT 1037576B IT 2261575 A IT2261575 A IT 2261575A IT 2261575 A IT2261575 A IT 2261575A IT 1037576 B IT1037576 B IT 1037576B
- Authority
- IT
- Italy
- Prior art keywords
- ammonium carbonate
- liq
- heat exchanger
- urea synthesis
- condensation
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The condensation of ammonium carbonate in the course of a urea synthesis process is carried out by supplying an ammonium carbonate soln. from the low-pressure (2-50 atm) stages of the process and a NH3+CH2+H2O vapour mixt. from the high-pressure (100-300 atm) carbamate decompsn. stage, to a condensation zone in a horizontal tubular heat exchanger under a static pressure difference DELTA P. Compared with the use of conventional vertical condensers, the system avoids the use of complicated liq.-vapour distributors, which can become blocked by carbamate crystn., gives improved heat utilization for steam generation, and eliminates the need for a separate steam separator.
Priority Applications (17)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2261575A IT1037576B (en) | 1975-04-23 | 1975-04-23 | Ammonium carbonate condensation in urea synthesis - by contacting liq. and vapour phases in a horizontal heat exchanger (NL261076) |
US05/678,635 US4082797A (en) | 1975-04-23 | 1976-04-20 | Method for the condensation of carbammate in urea-synthesis installations |
DE2617185A DE2617185C3 (en) | 1975-04-23 | 1976-04-20 | Process for the condensation of ammonium carbonate in the context of urea synthesis |
GB16012/76A GB1506129A (en) | 1975-04-23 | 1976-04-20 | Formation of ammonium carbamate solution |
CS762673A CS196306B2 (en) | 1975-04-23 | 1976-04-22 | Process for the condensation of ammonium carbamate at the synthese of urea |
FR7611952A FR2308615A1 (en) | 1975-04-23 | 1976-04-22 | CARBAMATE CONDENSATION PROCESS IN UREA SYNTHESIS PLANTS |
NLAANVRAGE7604303,A NL167157C (en) | 1975-04-23 | 1976-04-22 | PROCESS FOR CONDENSING AMMONIUM CARBONATE IN UREU SYNTHESIS. |
PL18900376A PL103111B1 (en) | 1975-04-23 | 1976-04-23 | METHOD OF CARBAMINATE CONDENSATION IN THE INSTALLATION OF UREA SYNTHESIS |
JP51045614A JPS6023109B2 (en) | 1975-04-23 | 1976-04-23 | Carbamate condensation method in urea synthesis equipment |
AU15623/76A AU506832B2 (en) | 1975-04-23 | 1976-07-06 | Formation of ammonium carbamate solution |
AT508576A AT344197B (en) | 1975-04-23 | 1976-07-09 | PROCESS FOR THE CONDENSATION OF AMMONIUM CARBONATE IN UREA SYNTHESIS |
BE168843A BE844047A (en) | 1975-04-23 | 1976-07-12 | CARBAMATE CONDENSATION PROCESS IN UREA SYNTHESIS PLANTS |
CH902776A CH622006A5 (en) | 1975-04-23 | 1976-07-13 | Process for the condensation of carbamate in urea synthesis plants |
IN1284/CAL/1976A IN144536B (en) | 1975-04-23 | 1976-07-17 | |
CA257,369A CA1069932A (en) | 1975-04-23 | 1976-07-20 | Method for the condensation of carbamate in urea-synthesis installations |
SE7608335A SE423386B (en) | 1975-04-23 | 1976-07-21 | PROCEDURE FOR CONDENSATION OF CARBAMATE IN PLANTS FOR SYNTHESIS OF CARBAMIDE |
MY7900227A MY7900227A (en) | 1975-04-23 | 1979-12-30 | Formation of ammonium carbamate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2261575A IT1037576B (en) | 1975-04-23 | 1975-04-23 | Ammonium carbonate condensation in urea synthesis - by contacting liq. and vapour phases in a horizontal heat exchanger (NL261076) |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1037576B true IT1037576B (en) | 1979-11-20 |
Family
ID=11198454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2261575A IT1037576B (en) | 1975-04-23 | 1975-04-23 | Ammonium carbonate condensation in urea synthesis - by contacting liq. and vapour phases in a horizontal heat exchanger (NL261076) |
Country Status (3)
Country | Link |
---|---|
IT (1) | IT1037576B (en) |
MY (1) | MY7900227A (en) |
PL (1) | PL103111B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10695719B2 (en) | 2016-12-01 | 2020-06-30 | Loughborough University | Producing ammonium carbamate and reducing nitrogen oxides |
-
1975
- 1975-04-23 IT IT2261575A patent/IT1037576B/en active
-
1976
- 1976-04-23 PL PL18900376A patent/PL103111B1/en unknown
-
1979
- 1979-12-30 MY MY7900227A patent/MY7900227A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10695719B2 (en) | 2016-12-01 | 2020-06-30 | Loughborough University | Producing ammonium carbamate and reducing nitrogen oxides |
Also Published As
Publication number | Publication date |
---|---|
MY7900227A (en) | 1979-12-31 |
PL103111B1 (en) | 1979-05-31 |
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