CN105498450A - Desulfurization absorption liquid capable of saving energy and reducing consumption - Google Patents
Desulfurization absorption liquid capable of saving energy and reducing consumption Download PDFInfo
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- CN105498450A CN105498450A CN201410539849.6A CN201410539849A CN105498450A CN 105498450 A CN105498450 A CN 105498450A CN 201410539849 A CN201410539849 A CN 201410539849A CN 105498450 A CN105498450 A CN 105498450A
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- activator
- absorbing liquid
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- absorption liquid
- hydramine
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Abstract
The invention belongs to the field of gas purification, and specifically relates to a desulfurization absorption liquid capable of saving energy and reducing consumption. The desulfurization absorption liquid is composed of alcohol amine, an activator, and deionized water; wherein the concentration of alcohol amine is 15 to 35 %(wt), and the concentration of the activator is 5 to 15 %(wt). Compared with the conventional alcohol amine solvent, the provided absorption liquid has the characteristics of strong absorbing and regenerating performance, large capacity for absorbing acidic gas, small circulation amount, and low energy consumption, can save the energy, and thus increases the economic benefits.
Description
Technical field
The invention belongs to field of gas purification, be specifically related to a kind of desulfurization absorbing liquid that can save energy.
Background technology
Alkanolamine method is remove H from the unstripped gas of natural gas, oil and processing industry thereof always
2the main stream approach of S.Nearly decades, amine method technology development, achieves rapid progress, defines multiple alternative amine desulfurization decarbonizing solution, as monoethanolamine, diethanol amine, triethanolamine, methyl-ethanolamine and methyl diethanolamine etc.Solvent regeneration process adopts conventional steam steam stripping regeneration method, and Regenerator Bottom Reboiler thermal source adopts low-pressure steam, and the program is the process program be generally used, technology maturation, and small investment is simple to operate.Be the conventional amine method solvent of representative at present with MDEA, absorption and regeneration effect stability, but the energy of regenerative process consumption accounts for more than 90% of energy consumption, consumes large.For this reason, exploitation has energy-saving and cost-reducing novel solutions, can economize energy, can reach the object of increasing economic efficiency.
Summary of the invention
The object of the invention is to, propose a kind of novel desulfurization absorbing liquid, this regeneration of absorption solution effect has more advantage than traditional MDEA solution.
Main technical schemes of the present invention: the desulfurization absorbing liquid that can save energy, its feature comprises hydramine, activator and deionized water; Wherein the concentration of hydramine is 15 ~ 45%(wt), the concentration of activator is 5 ~ 15%(wt).
Usually, the concentration of described hydramine is 20 ~ 40%(wt), activator concentration is 5 ~ 10%(wt).
Described hydramine comprises at least two kinds of compositions in N methyldiethanol amine (MDEA), monoethanolamine (MEA), diethanol amine (DEA), triethanolamine (TEA), methyl-ethanolamine (MMEA).
Described activator comprises at least two kinds of compositions in piperazine, 2-amino-2-methyl-1-propanol, morpholine, tert-butylamine base diethanol amine, 2-piperidine ethanol, diazabicylo.
Described absorbing liquid is wherein multiple hydramine and the composite aqueous solution of activator, and its concentration range is 20 ~ 65%(wt).
The present invention, compared with traditional desulfurization absorbing liquid, has lower distinguishing feature: the features such as absorption and regeneration performance is strong, sour gas load is large, internal circulating load is little, energy consumption is low, can economize energy, reaches the object of increasing economic efficiency.
Accompanying drawing explanation
Fig. 1 is experimental provision connection diagram in the embodiment of the present invention.
In figure, 1, there-necked flask; 2, condenser pipe; 3, stir speed adjuster; 4, mechanical agitator; 5, thermometer; 6, thermocouple; 7, temperature-shrink crack; 8, heater coil.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in detail, but be not limited only to content described in following examples.
Embodiment: as shown in Figure 1.Experimental condition: solution absorbs H
2temperature is controlled at 105 DEG C after S, mechanical agitation 150rpm, after certain hour, measure H in solution
2s content, total acid tolerance.Test analytical method used: liquid phase H
2s adopts iodimetric titration, and liquid phase acid gas adopts gas evolution method.
Foaming experiment the results are shown in following table:
Result shows: by contrast, Novel desulphurization absorbing liquid (2#, 3#, 4#) regeneration effect of the present invention is obviously good than MDEA absorbing liquid.
Claims (5)
1. the desulfurization absorbing liquid that can save energy, is characterized in that absorbing liquid comprises hydramine, activator and deionized water, and wherein the concentration of hydramine is 15 ~ 45%(wt), the concentration of activator is 5 ~ 15%(wt).
2. absorbing liquid according to claim 1, is characterized in that the concentration of hydramine is 20 ~ 40%(wt), the concentration of activator is 5 ~ 10%(wt).
3. absorbing liquid according to claim 1, is characterized in that hydramine comprises at least two kinds of compositions in N methyldiethanol amine (MDEA), monoethanolamine (MEA), diethanol amine (DEA), triethanolamine (TEA), methyl-ethanolamine (MMEA).
4. absorbing liquid according to claim 1, is characterized in that activator comprises at least two kinds of compositions in piperazine, 2-amino-2-methyl-1-propanol, morpholine, tert-butylamine base diethanol amine, 2-piperidine ethanol, diazabicylo.
5. according to the absorbing liquid one of claim 1-4 Suo Shu, it is characterized in that absorbing liquid is wherein multiple hydramine and the composite aqueous solution of activator, its concentration range is 20 ~ 65%(wt).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410539849.6A CN105498450A (en) | 2014-10-14 | 2014-10-14 | Desulfurization absorption liquid capable of saving energy and reducing consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410539849.6A CN105498450A (en) | 2014-10-14 | 2014-10-14 | Desulfurization absorption liquid capable of saving energy and reducing consumption |
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| CN105498450A true CN105498450A (en) | 2016-04-20 |
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| CN201410539849.6A Pending CN105498450A (en) | 2014-10-14 | 2014-10-14 | Desulfurization absorption liquid capable of saving energy and reducing consumption |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107433108A (en) * | 2016-05-26 | 2017-12-05 | 中国石油化工股份有限公司 | A kind of lyosoption for being used for desulfurization and decarburization in plant catalytic dry gas |
| CN108744923A (en) * | 2018-07-20 | 2018-11-06 | 江苏安纳泰环保科技有限公司 | A kind of desulphurization denitration high efficiency spray wash mill |
| CN110564471A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | Absorption liquid for desulfurization and decarburization in SNG synthesis gas |
| CN110684572A (en) * | 2018-07-06 | 2020-01-14 | 中国石油化工股份有限公司 | CO removal from LNG raw material gas2Absorbing liquid of |
| CN112143536A (en) * | 2019-06-27 | 2020-12-29 | 中石化南京化工研究院有限公司 | Absorption liquid for corrosion prevention of decarburization system in natural gas |
| CN114452777A (en) * | 2022-01-25 | 2022-05-10 | 江苏创新石化有限公司 | Special ultralow-emission desulfurization solvent for SCOT tail gas of sulfur recovery device of oil refinery |
Citations (4)
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| CN1113514A (en) * | 1995-01-13 | 1995-12-20 | 金坚敏 | Efficient natural antioxidants and their preparation |
| WO2000018492A1 (en) * | 1998-09-30 | 2000-04-06 | The Dow Chemical Company | Composition and process for removal of acid gases |
| CN1887406A (en) * | 2005-06-27 | 2007-01-03 | 成都华西化工研究所 | Solvent for eliminating H2S from gas mixture |
| CN101143286A (en) * | 2006-09-15 | 2008-03-19 | 南化集团研究院 | Method for removing COS from acid airflow |
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2014
- 2014-10-14 CN CN201410539849.6A patent/CN105498450A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1113514A (en) * | 1995-01-13 | 1995-12-20 | 金坚敏 | Efficient natural antioxidants and their preparation |
| WO2000018492A1 (en) * | 1998-09-30 | 2000-04-06 | The Dow Chemical Company | Composition and process for removal of acid gases |
| CN1887406A (en) * | 2005-06-27 | 2007-01-03 | 成都华西化工研究所 | Solvent for eliminating H2S from gas mixture |
| CN101143286A (en) * | 2006-09-15 | 2008-03-19 | 南化集团研究院 | Method for removing COS from acid airflow |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107433108A (en) * | 2016-05-26 | 2017-12-05 | 中国石油化工股份有限公司 | A kind of lyosoption for being used for desulfurization and decarburization in plant catalytic dry gas |
| CN110564471A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | Absorption liquid for desulfurization and decarburization in SNG synthesis gas |
| CN110684572A (en) * | 2018-07-06 | 2020-01-14 | 中国石油化工股份有限公司 | CO removal from LNG raw material gas2Absorbing liquid of |
| CN108744923A (en) * | 2018-07-20 | 2018-11-06 | 江苏安纳泰环保科技有限公司 | A kind of desulphurization denitration high efficiency spray wash mill |
| CN112143536A (en) * | 2019-06-27 | 2020-12-29 | 中石化南京化工研究院有限公司 | Absorption liquid for corrosion prevention of decarburization system in natural gas |
| CN114452777A (en) * | 2022-01-25 | 2022-05-10 | 江苏创新石化有限公司 | Special ultralow-emission desulfurization solvent for SCOT tail gas of sulfur recovery device of oil refinery |
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Application publication date: 20160420 |
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