CN101348914A - Special scale inhibitor for TRT - Google Patents
Special scale inhibitor for TRT Download PDFInfo
- Publication number
- CN101348914A CN101348914A CNA2008101387143A CN200810138714A CN101348914A CN 101348914 A CN101348914 A CN 101348914A CN A2008101387143 A CNA2008101387143 A CN A2008101387143A CN 200810138714 A CN200810138714 A CN 200810138714A CN 101348914 A CN101348914 A CN 101348914A
- Authority
- CN
- China
- Prior art keywords
- trt
- corrosion
- scale inhibitor
- inhibitor
- blade
- 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.)
- Granted
Links
- 239000002455 scale inhibitor Substances 0.000 title claims abstract description 23
- 230000007797 corrosion Effects 0.000 claims abstract description 36
- 238000005260 corrosion Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003112 inhibitor Substances 0.000 claims abstract description 11
- 150000004395 organic heterocyclic compounds Chemical class 0.000 claims abstract description 8
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 claims description 14
- CYDRXTMLKJDRQH-UHFFFAOYSA-N benzododecinium Chemical compound CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 CYDRXTMLKJDRQH-UHFFFAOYSA-N 0.000 claims description 12
- 230000031709 bromination Effects 0.000 claims description 12
- 238000005893 bromination reaction Methods 0.000 claims description 12
- 229940073469 dimethyldodecylbenzylammonium Drugs 0.000 claims description 12
- 229920000058 polyacrylate Polymers 0.000 claims description 12
- 239000013543 active substance Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 abstract description 4
- 239000002270 dispersing agent Substances 0.000 abstract 2
- 230000005764 inhibitory process Effects 0.000 abstract 2
- 239000004094 surface-active agent Substances 0.000 abstract 2
- 238000005536 corrosion prevention Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000003034 coal gas Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 description 2
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical group OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 229920000141 poly(maleic anhydride) Polymers 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a special corrosion and scale inhibitor for TRT, which is mainly used for the corrosion prevention of blast furnace gas excess-pressure turbine rotor blades. The special corrosion and scale inhibitor for TRT contains organic heterocyclic compounds, efficient corrosion inhibitor, surfactant, scale inhibition dispersant and water, wherein the weight percentages of the components are: 15 to 25 percent of organic heterocyclic compounds, 20 to 45 percent of efficient corrosion inhibitor, 2 to 5 percent of surfactant, 10 to 35 percent of scale inhibition dispersant and the balance being water. After the corrosion and scale inhibitor is added to a blast furnace gas pipeline, the corrosion and scale inhibitor can be heated and vaporized into gas by the temperature of gas so as to enter a TRT turbine device along the gas pipeline. Under the condition of continuous addition, the corrosion and scale inhibitor can prevent the generation of TRT blade salt deposit and attach a smooth protective film to the surface of a blade, so as to separate the blade from the outside, thereby playing a role in protecting the blade and prolonging the life span of equipment.
Description
Technical field
The present invention relates to a kind of chemical reagent, is a kind of TRT special corrosion and scale inhibitor specifically.
Background technology
TRT is the good energy saver of iron and steel enterprise, is to utilize blast furnace furnace roof overbottom pressure, and coal gas is led people's turbine expansion acting, drives the energy recovery unit of generator for electricity generation.The red material alternate of crystallization on the TRT operation one or two months turbine rotor blade with white, thickness can reach 20mm when serious, and fouling is inhomogeneous, under the situation of rotor with the operation of 3000r/min rotating speed, produces seriously shake, influences unit and normally moves.
TRT mainly is divided into by entering the wet situation of doing of coal gas: wet type, dry type, Wet-dry type.Wet type TRT is used for adopting the energy recovery of wet dedusting technology blast furnace gas.Be generally about 50 ℃ the about 20-35kPa of the pressure-losses, dustiness 10～20mg/m through the blast furnace gas after the wet dedusting.The fouling of wet type TRT turbine rotor blade generally adopts the mode of high-pressure water jet to clean, because wet dedusting, the coal gas water content is higher, utilizes water to clean and carries away the equipment influence little by coal gas.Dry type TRT is used for adopting the energy recovery of dry dedusting technology blast furnace gas.Be generally about 150～250 ℃ through the blast furnace gas behind the dry method dust, about the about 5kPa of the pressure-losses, about dustiness 5mg/m.Compare dry gas cleaning with wet dedusting and have efficiency of dust collection height, little, the purified gas temperature advantages of higher of the pressure-losses, so dry type TRT is used rapidly in each big steel enterprise in recent years, but turbine rotor blade scale problems still exists, and it is more difficult than wet type, now still use the mode of high pressure water washing, but descale effect is bad, and equipment is caused very big damage.In the research of anti-incrustation corrosion inhibitor " the TRT system use " that Zhang Xiaoyu, the Yu Menghua of packet header combustion gas factory of iron and steel Group Co.,Ltd delivered in " metallurgical power " 2005 the 2nd phases, disclosing a kind of anti-incrustation corrosion inhibitor is Amino Trimethylene Phosphonic Acid (ATMP): 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP): the mix reagent of hydrolytic polymaleic anhydride (HDMA)=4: 5: 1, this anti-incrustation corrosion inhibitor is joined TRT stator blade waterworks solve turbine rotor blade scale problems, this method still belongs to the high pressure water washing mode.
Summary of the invention
In order to solve the problem of dry type TRT fouling; the invention provides a kind of TRT special corrosion and scale inhibitor; this corrosion inhibiting and descaling agent is liquid; place, 40 mitron road opening before entering the TRT turbine installation; by volume pump inhibiter is squeezed in the gas line, inhibiter is met behind the coal gas vaporization rapidly and is entered the TRT turbine installation with coal gas, can stop the generation of salification and adhere to the slick protective membrane of one deck at blade surface under situation about adding continuously; the blade and the external world are separated, play the effect of protection blade.
The invention provides a kind of TRT special corrosion and scale inhibitor, it is characterized in that, contain organic heterocyclic compounds, high-efficient corrosion inhibitor, tensio-active agent, dirt dispersion agent and water, wherein each compositions in weight percentage: organic heterocyclic compounds: 30-45%; High-efficient corrosion inhibitor: 25-45%; Tensio-active agent: 2-5%; Dirt dispersion agent: 15-25%; All the other are water.
Described organic heterocyclic compounds is diethanolamine (DEA) or methyldiethanolamine (MDEA), and described high-efficient corrosion inhibitor is a tetrahydroglyoxaline, and described tensio-active agent is a bromination dimethyl dodecylbenzyl ammonium, and described dirt dispersion agent is a polyacrylate.
This TRT special corrosion and scale inhibitor is little yellow transparent liquid, pH value 8-9, density 1.0-1.1Kg/m
3Methyldiethanolamine in this TRT special corrosion and scale inhibitor belongs to volatility film forming organic amine, cooperate with tetrahydroglyoxaline the main effect in back be in and HCL, CO in the coal gas
2Deng acid attack salification material, can form simultaneously end parent metal in the metallic surface, the protective membrane of the hydrophobic and sour gas of the other end effectively prevents metallic corrosion, guarantees the smooth finish of blade surface.Tetrahydroglyoxaline is strong film-forming components, and the unoccupied orbital in lone-pair electron in the molecule in the nitrogen-atoms and the atoms metal surface atom is formed with the hydridization of strong adsorptive power is good for, and can play the effect that continues the protection blade.Tensio-active agent mainly plays the clean metal surface action, and ash can't be accumulated at blade surface.
This beneficial effect of the invention is: this TRT special corrosion and scale inhibitor is for liquid; place, 40 mitron road opening before advancing the TRT turbine installation; by volume pump inhibiter is squeezed in the gas line; inhibiter is met behind the coal gas vaporization rapidly and is entered the TRT turbine installation with coal gas; under situation about adding continuously, can stop the generation of turbine rotor blade surface salification; simultaneously adhere to the slick protective membrane of one deck at blade surface; the blade and the external world are separated; effectively prevent metallic corrosion; guarantee the smooth finish of blade surface, play the effect of protection blade.
Embodiment
[embodiment 1]:
A kind of TRT special corrosion and scale inhibitor comprises: (1) methyldiethanolamine (MDEA), (2) tetrahydroglyoxaline, (3) bromination dimethyl dodecylbenzyl ammonium, (4) polyacrylate, (5) water.
Form by following mass percent configuration:
MDEA 30％
Tetrahydroglyoxaline 45%
Bromination dimethyl dodecylbenzyl ammonium 2%
Polyacrylate 20%
All the other are water.
Add-on be per ten thousand cubes of coal gas of 70g per hour.
[embodiment 2]:
A kind of TRT special corrosion and scale inhibitor comprises: (1) methyldiethanolamine (MDEA), (2) tetrahydroglyoxaline, (3) bromination dimethyl dodecylbenzyl ammonium, (4) polyacrylate, (5) water.
Form by following mass percent configuration:
MDEA 35％
Tetrahydroglyoxaline 40%
Bromination dimethyl dodecylbenzyl ammonium 4%
Polyacrylate 18%
All the other are water.
[embodiment 3]:
A kind of TRT special corrosion and scale inhibitor comprises: (1) methyldiethanolamine (MDEA), (2) tetrahydroglyoxaline, (3) bromination dimethyl dodecylbenzyl ammonium, (4) polyacrylate, (5) water.
Form by following mass percent configuration:
MDEA 40％
Tetrahydroglyoxaline 35%
Bromination dimethyl dodecylbenzyl ammonium 4%
Polyacrylate 18%
All the other are water
[embodiment 4]:
A kind of TRT special corrosion and scale inhibitor comprises: (1) diethanolamine (DEA), (2) tetrahydroglyoxaline, (3) bromination dimethyl dodecylbenzyl ammonium, (4) polyacrylate, (5) water.
Form by following mass percent configuration:
DEA 35％
Tetrahydroglyoxaline 40%
Bromination dimethyl dodecylbenzyl ammonium 5%
Polyacrylate 15%
All the other are water.
[embodiment 5]:
A kind of TRT special corrosion and scale inhibitor comprises: (1) acid amides, (2) tetrahydroglyoxaline, (3) bromination dimethyl dodecylbenzyl ammonium, (4) polyacrylate, (5) water.
Form by following mass percent configuration:
Acid amides 40%
Tetrahydroglyoxaline 30%
Bromination dimethyl dodecylbenzyl ammonium 3%
Polyacrylate 25%
All the other are water.
Claims (5)
1, a kind of TRT special corrosion and scale inhibitor is characterized in that, contains organic heterocyclic compounds, high-efficient corrosion inhibitor, tensio-active agent, dirt dispersion agent and water, each compositions in weight percentage:
Organic heterocyclic compounds: 30-45%
High-efficient corrosion inhibitor: 25-45%
Tensio-active agent: 2-5%
Dirt dispersion agent: 15-25%
All the other are water.
2, a kind of TRT special corrosion and scale inhibitor according to claim 1 is characterized in that: the organic heterocyclic compounds is diethanolamine (DEA) or methyldiethanolamine (MDEA).
3, a kind of TRT special corrosion and scale inhibitor according to claim 1, it is characterized in that: described high-efficient corrosion inhibitor is a tetrahydroglyoxaline.
4, a kind of TRT special corrosion and scale inhibitor according to claim 1 is characterized in that: described tensio-active agent is a bromination dimethyl dodecylbenzyl ammonium.
5, a kind of TRT special corrosion and scale inhibitor according to claim 1, it is characterized in that: described dirt dispersion agent is a polyacrylate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810138714A CN100580141C (en) | 2008-07-30 | 2008-07-30 | Special scale inhibitor for TRT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810138714A CN100580141C (en) | 2008-07-30 | 2008-07-30 | Special scale inhibitor for TRT |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101348914A true CN101348914A (en) | 2009-01-21 |
| CN100580141C CN100580141C (en) | 2010-01-13 |
Family
ID=40267880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810138714A Expired - Fee Related CN100580141C (en) | 2008-07-30 | 2008-07-30 | Special scale inhibitor for TRT |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100580141C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443806A (en) * | 2010-12-22 | 2012-05-09 | 珠海光裕电力科技有限公司 | High-dispersion anti-scaling agent of dry dust-removal blast furnace gas residual pressure turbine power generating system |
| CN102634802A (en) * | 2012-05-15 | 2012-08-15 | 哈尔滨工业大学 | Vapor phase inhibitor for metal natural gas gathering and transporting pipeline and preparation method for vapor phase inhibitor |
| CN103556154A (en) * | 2013-11-07 | 2014-02-05 | 湖南工业大学 | Method for improving corrosion inhibition efficiency of imidazole to aluminum and aluminum alloy |
| CN104962922A (en) * | 2015-06-04 | 2015-10-07 | 西安瑞杰油田物资实业开发有限公司 | Corrosion inhibition descaling agent for blast furnace gas excess pressure turbine power generation device and preparing method of corrosion inhibition descaling agent |
| CN105018939A (en) * | 2014-04-18 | 2015-11-04 | 中国石油天然气集团公司 | Metal material corrosion inhibitor and preparation method thereof |
| CN105734581A (en) * | 2016-03-04 | 2016-07-06 | 北京斯伯乐科学技术研究院 | Efficient corrosion inhibitor of ethylene device compressor and preparation and application methods thereof |
| CN105821417A (en) * | 2016-05-18 | 2016-08-03 | 陕西驭腾实业有限公司 | Gas vapor liquid two-phase organic corrosion inhibitor and preparation method thereof |
| CN106011874A (en) * | 2016-05-18 | 2016-10-12 | 陕西驭腾实业有限公司 | Gaseous phase scale inhibitor for multiple types of gas booster fans |
| CN107267994A (en) * | 2017-04-19 | 2017-10-20 | 西安瑞杰油田物资实业开发有限公司 | A kind of gas gathering line multiple-effect composite corrosion inhibitor and preparation method thereof |
| CN108517525A (en) * | 2017-11-08 | 2018-09-11 | 西安瑞杰油田物资实业开发有限公司 | A kind of scale removal corrosion inhibiter and preparation method thereof |
| CN115181978A (en) * | 2022-05-20 | 2022-10-14 | 河北濡春新能源集团有限公司 | Special scale and corrosion inhibitor for TRT |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI757376B (en) | 2016-12-09 | 2022-03-11 | 美商藝康美國公司 | Top-pressure recovery turbine deposition control |
-
2008
- 2008-07-30 CN CN200810138714A patent/CN100580141C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443806A (en) * | 2010-12-22 | 2012-05-09 | 珠海光裕电力科技有限公司 | High-dispersion anti-scaling agent of dry dust-removal blast furnace gas residual pressure turbine power generating system |
| CN102443806B (en) * | 2010-12-22 | 2014-07-02 | 珠海光裕电力科技有限公司 | High-dispersion anti-scaling agent of dry dust-removal blast furnace gas residual pressure turbine power generating system |
| CN102634802A (en) * | 2012-05-15 | 2012-08-15 | 哈尔滨工业大学 | Vapor phase inhibitor for metal natural gas gathering and transporting pipeline and preparation method for vapor phase inhibitor |
| CN103556154A (en) * | 2013-11-07 | 2014-02-05 | 湖南工业大学 | Method for improving corrosion inhibition efficiency of imidazole to aluminum and aluminum alloy |
| CN105018939B (en) * | 2014-04-18 | 2018-02-23 | 中国石油天然气集团公司 | A kind of metal material corrosion inhibitor and preparation method thereof |
| CN105018939A (en) * | 2014-04-18 | 2015-11-04 | 中国石油天然气集团公司 | Metal material corrosion inhibitor and preparation method thereof |
| CN104962922B (en) * | 2015-06-04 | 2017-07-11 | 西安瑞杰油田物资实业开发有限公司 | Blast-furnace top gas recovery turbine generating equipment inhibition scale remover and preparation method thereof |
| CN104962922A (en) * | 2015-06-04 | 2015-10-07 | 西安瑞杰油田物资实业开发有限公司 | Corrosion inhibition descaling agent for blast furnace gas excess pressure turbine power generation device and preparing method of corrosion inhibition descaling agent |
| CN105734581A (en) * | 2016-03-04 | 2016-07-06 | 北京斯伯乐科学技术研究院 | Efficient corrosion inhibitor of ethylene device compressor and preparation and application methods thereof |
| CN105734581B (en) * | 2016-03-04 | 2018-06-22 | 北京斯伯乐科学技术研究院 | Ethylene device compressor high-efficient corrosion inhibitor prepares and its application method |
| CN105821417A (en) * | 2016-05-18 | 2016-08-03 | 陕西驭腾实业有限公司 | Gas vapor liquid two-phase organic corrosion inhibitor and preparation method thereof |
| CN106011874A (en) * | 2016-05-18 | 2016-10-12 | 陕西驭腾实业有限公司 | Gaseous phase scale inhibitor for multiple types of gas booster fans |
| CN107267994A (en) * | 2017-04-19 | 2017-10-20 | 西安瑞杰油田物资实业开发有限公司 | A kind of gas gathering line multiple-effect composite corrosion inhibitor and preparation method thereof |
| CN108517525A (en) * | 2017-11-08 | 2018-09-11 | 西安瑞杰油田物资实业开发有限公司 | A kind of scale removal corrosion inhibiter and preparation method thereof |
| CN115181978A (en) * | 2022-05-20 | 2022-10-14 | 河北濡春新能源集团有限公司 | Special scale and corrosion inhibitor for TRT |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100580141C (en) | 2010-01-13 |
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Address after: 250101 Ji'nan Industrial Road, Shandong, No. 21 Patentee after: Shandong Iron & Steel Group Co., Ltd. Address before: 250101 Ji'nan Industrial Road, Shandong, No. 21 Patentee before: Jinan Iron and Steel Co., Ltd. |
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