CN103950955B - A kind of method processing synthetic ammonia installation conversion stripping tower condensation waste water - Google Patents
A kind of method processing synthetic ammonia installation conversion stripping tower condensation waste water Download PDFInfo
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- CN103950955B CN103950955B CN201410065567.7A CN201410065567A CN103950955B CN 103950955 B CN103950955 B CN 103950955B CN 201410065567 A CN201410065567 A CN 201410065567A CN 103950955 B CN103950955 B CN 103950955B
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Abstract
The invention provides a kind of method processing synthetic ammonia installation conversion stripping tower condensation waste water, comprise the following steps: (1), isolated for synthesis ammonia system conversion phlegma is sent to stripping tower carries out ammonia still process process, gas through condensation separation, isolates acidic liquid in stripping tower outlet; (2), the direct pipe arrangement of acidic liquid after conversion stripping tower outlet condensation separation is sent to light liquid bucket; (3) the light liquid distillation tower, the acidic liquid in light liquid bucket being entered alkaline device carries out ammonia still process; (4), the ammonia that steams uses disposing mother liquor to system alkaline, and the raffinate of discharging bottom light liquid distillation tower is sent systemic circulation use again back to or drained into sewage.The method not only alleviates sewage disposal burden and environmental pollution, and the ammonia recycled in waste liquid is for alkaline, for company creates economic benefit.
Description
Technical field
The present invention relates to a kind of method processing synthetic ammonia installation conversion stripping tower condensation waste water.
Background technology
Current domestic large nitrogenous fertilizer synthesis ammonia system shift conversion step generally adopts wide temperature sulfur resistant conversion process, enter the ammonia not only containing a large amount of aqueous vapors but also containing trace in the gasified water coal gas of system, after the transformationreation of shift converter, conversion gas is lowered the temperature through cooling heat exchanger, in conversion gas, the ammonia of trace carries out ammonia still process process along with the phlegma separated is sent to stripping tower, except water, remaining composition in the middle of conversion stripping phlegma is exactly ammonia, the content of ammonia is relatively high, processing mode is generally be disposed to sewage plant, outer row after sewage plant process is qualified.This processing mode to Acidic Liquid is more single, not only increases the pressure of sewage disposal, also brings certain harm to environment.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of method processing synthetic ammonia installation conversion stripping tower condensation waste water.
Technical scheme of the present invention is as follows:
Process a method for synthetic ammonia installation conversion stripping tower condensation waste water, it is characterized in that, comprise the following steps:
(1), isolated for synthesis ammonia system conversion phlegma is sent to stripping tower carries out ammonia still process process, gas through condensation separation, isolates acidic liquid in stripping tower outlet;
(2), the direct pipe arrangement of acidic liquid after conversion stripping tower outlet condensation separation is sent to light liquid bucket;
(3) the light liquid distillation tower, the acidic liquid in light liquid bucket being entered alkaline device carries out ammonia still process;
(4), the ammonia that steams uses disposing mother liquor to system alkaline, and the raffinate of discharging bottom light liquid distillation tower is sent systemic circulation use again back to or drained into sewage.
In described step (3), the light liquid distillation tower of alkaline device carries out ammonia still process process with low-quality steam to the acidic liquid after conversion stripping tower condensation separation.
Beneficial effect of the present invention:
The method of process synthetic ammonia installation conversion stripping tower condensation waste water of the present invention, not only alleviate sewage disposal burden and environmental pollution, and the ammonia recycled in waste liquid is for alkaline, for company creates economic benefit.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Embodiment
As shown in Figure 1, a kind of method processing synthetic ammonia installation conversion stripping tower condensation waste water of the present invention, is characterized in that, comprise the following steps:
(1), isolated for synthesis ammonia system conversion phlegma is sent to stripping tower carries out ammonia still process process, gas through condensation separation, isolates acidic liquid in stripping tower outlet;
(2), the direct pipe arrangement of acidic liquid after conversion stripping tower outlet condensation separation is sent to light liquid bucket;
(3) the light liquid distillation tower, the acidic liquid in light liquid bucket being entered alkaline device carries out ammonia still process;
(4), the ammonia that steams uses disposing mother liquor to system alkaline, and the raffinate of discharging bottom light liquid distillation tower is sent systemic circulation use again back to or drained into sewage.
In described step (3), the light liquid distillation tower of alkaline device carries out ammonia still process process with low-quality steam to the acidic liquid after conversion stripping tower condensation separation.
Claims (1)
1. process a method for synthetic ammonia installation conversion stripping tower condensation waste water, it is characterized in that, comprise the following steps:
(1), isolated for synthesis ammonia system conversion phlegma is sent to stripping tower carries out ammonia still process process, gas through condensation separation, isolates acidic liquid in stripping tower outlet;
(2), the direct pipe arrangement of acidic liquid after conversion stripping tower outlet condensation separation is sent to light liquid bucket;
(3) the light liquid distillation tower, the acidic liquid in light liquid bucket being entered alkaline device carries out ammonia still process;
(4), the ammonia that steams uses disposing mother liquor to system alkaline, and the raffinate of discharging bottom light liquid distillation tower is sent systemic circulation use again back to or drained into sewage;
In described step (3), the light liquid distillation tower of alkaline device carries out ammonia still process process with low-quality steam to the acidic liquid after conversion stripping tower condensation separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410065567.7A CN103950955B (en) | 2014-02-25 | 2014-02-25 | A kind of method processing synthetic ammonia installation conversion stripping tower condensation waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410065567.7A CN103950955B (en) | 2014-02-25 | 2014-02-25 | A kind of method processing synthetic ammonia installation conversion stripping tower condensation waste water |
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| Publication Number | Publication Date |
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| CN103950955A CN103950955A (en) | 2014-07-30 |
| CN103950955B true CN103950955B (en) | 2015-11-18 |
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| CN201410065567.7A Active CN103950955B (en) | 2014-02-25 | 2014-02-25 | A kind of method processing synthetic ammonia installation conversion stripping tower condensation waste water |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104556148A (en) * | 2014-12-29 | 2015-04-29 | 安徽淮化股份有限公司 | Synthesis ammonia conversion condensate recycling treatment method and device thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1341695A (en) * | 2000-09-05 | 2002-03-27 | 中国石化股份公司巴陵分公司 | Condensate liquid recovery process of ammonia synthesis process |
| CN101475842A (en) * | 2008-12-11 | 2009-07-08 | 中冶焦耐工程技术有限公司 | Ammonia distillation process |
| CN201914938U (en) * | 2010-12-20 | 2011-08-03 | 重庆建峰工业集团有限公司 | Device for recovering condensate after gas-liquid separation of synthetic ammonia |
| CN102718232A (en) * | 2012-07-12 | 2012-10-10 | 天津渤海化工有限责任公司天津碱厂 | Thin liquor distillation method in combined alkali production process |
-
2014
- 2014-02-25 CN CN201410065567.7A patent/CN103950955B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1341695A (en) * | 2000-09-05 | 2002-03-27 | 中国石化股份公司巴陵分公司 | Condensate liquid recovery process of ammonia synthesis process |
| CN101475842A (en) * | 2008-12-11 | 2009-07-08 | 中冶焦耐工程技术有限公司 | Ammonia distillation process |
| CN201914938U (en) * | 2010-12-20 | 2011-08-03 | 重庆建峰工业集团有限公司 | Device for recovering condensate after gas-liquid separation of synthetic ammonia |
| CN102718232A (en) * | 2012-07-12 | 2012-10-10 | 天津渤海化工有限责任公司天津碱厂 | Thin liquor distillation method in combined alkali production process |
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| CN103950955A (en) | 2014-07-30 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Method for treating ammonia synthesis apparatus shift stripping tower condensation wastewater Effective date of registration: 20180413 Granted publication date: 20151118 Pledgee: Huizhou merchant bank, Hefei Taihu Road Branch Pledgor: CNSG Anhui Hong Sifang Co., Ltd. Registration number: 2018340000109 |
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Date of cancellation: 20180625 Granted publication date: 20151118 Pledgee: Huizhou merchant bank, Hefei Taihu Road Branch Pledgor: CNSG Anhui Hong Sifang Co., Ltd. Registration number: 2018340000109 |
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