GB701986A - An improved process for de-acidification of ammonia liquor by distillation - Google Patents
An improved process for de-acidification of ammonia liquor by distillationInfo
- Publication number
- GB701986A GB701986A GB486851A GB486851A GB701986A GB 701986 A GB701986 A GB 701986A GB 486851 A GB486851 A GB 486851A GB 486851 A GB486851 A GB 486851A GB 701986 A GB701986 A GB 701986A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquor
- grm
- litre
- stages
- acidifier
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/10—Separation of ammonia from ammonia liquors, e.g. gas liquors
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/101—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids with water only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
- C10K1/121—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors containing NH3 only (possibly in combination with NH4 salts)
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Industrial Gases (AREA)
Abstract
<PICT:0701986/III/1> In a process of freeing ammoniacal liquor from hydrogen sulphide and carbon dioxide, without appreciable loss of ammonia, by submitting part of the liquor to distillation and passing the vapours through a fractionating column which is supplied at or near the top with the remainder of the (cold) liquor, the vapours are conducted in a multiple loop - like path through the lower stages of the column and the mean temperature of the liquor in these lower stages is maintained approximately constant between 70 DEG and 80 DEG C. The column shown comprises a boiler A, de-acidifier B, and a water-scrubber C. The middle and lower sections of de-acidifier B comprise five stages, separated by horizontal plates each containing five to seven bubble plates. Part of the ammoniacal liquor (about one-third) is introduced at 20 DEG C. through inlet C into the top of the de-acidifier B. The main bulk of the ammoniacal liquor is pre-heated and introduced through inlet a into boiler A, where it is heated, by indirect heating, to 95 DEG C. The vapours evolved are led through pipes b1 from stage 1 to stage 4 and from the latter, via stages 3 and 2, to stage 5; and a constant temperature between 70 DEG and 80 DEG C. is thereby maintained throughout stages 1 to 5. The last traces of ammonia are removed from the vapours leaving the top of the de-acidifier by passing them through scrubber C, which is supplied with water through inlet d. The scrubbing water is withdrawn through outlet f. In an example a liquor containing 13.0 grm./litre of NH3, 6.8 grm./litre of H2S and 3.0 grm./litre of CO2 is treated by the process to give a deacidified liquor containing 12.9 grm./litre of NH3, 0.4 grm./litre of H2S and 0.2 grm./litre of CO2.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1950C0002236 DE855451C (en) | 1950-09-19 | 1950-09-19 | Process for the deacidification of ammonia water |
Publications (1)
Publication Number | Publication Date |
---|---|
GB701986A true GB701986A (en) | 1954-01-06 |
Family
ID=7012836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB486851A Expired GB701986A (en) | 1950-09-19 | 1951-02-28 | An improved process for de-acidification of ammonia liquor by distillation |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE505881A (en) |
DE (1) | DE855451C (en) |
FR (1) | FR1041746A (en) |
GB (1) | GB701986A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107935086A (en) * | 2017-12-22 | 2018-04-20 | 中冶焦耐(大连)工程技术有限公司 | A kind of efficiently deacidifion tower |
-
1950
- 1950-09-19 DE DE1950C0002236 patent/DE855451C/en not_active Expired
-
1951
- 1951-02-28 GB GB486851A patent/GB701986A/en not_active Expired
- 1951-04-26 FR FR1041746D patent/FR1041746A/en not_active Expired
-
1952
- 1952-03-28 BE BE505881D patent/BE505881A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107935086A (en) * | 2017-12-22 | 2018-04-20 | 中冶焦耐(大连)工程技术有限公司 | A kind of efficiently deacidifion tower |
Also Published As
Publication number | Publication date |
---|---|
BE505881A (en) | 1951-09-18 |
DE855451C (en) | 1952-11-13 |
FR1041746A (en) | 1953-10-26 |
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