CN111855604A - 一种烟气湿法脱硫石灰石浆料转化率的测定方法 - Google Patents
一种烟气湿法脱硫石灰石浆料转化率的测定方法 Download PDFInfo
- Publication number
- CN111855604A CN111855604A CN202010687039.0A CN202010687039A CN111855604A CN 111855604 A CN111855604 A CN 111855604A CN 202010687039 A CN202010687039 A CN 202010687039A CN 111855604 A CN111855604 A CN 111855604A
- Authority
- CN
- China
- Prior art keywords
- slurry
- content
- sio
- drying
- limestone
- 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
- 239000002002 slurry Substances 0.000 title claims abstract description 73
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 27
- 235000019738 Limestone Nutrition 0.000 title claims abstract description 24
- 239000006028 limestone Substances 0.000 title claims abstract description 24
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 23
- 230000023556 desulfurization Effects 0.000 title claims abstract description 22
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 239000003546 flue gas Substances 0.000 title claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 19
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 19
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 19
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 19
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 16
- 238000010521 absorption reaction Methods 0.000 claims abstract description 12
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 10
- 238000000227 grinding Methods 0.000 claims abstract description 10
- YQCIWBXEVYWRCW-UHFFFAOYSA-N methane;sulfane Chemical compound C.S YQCIWBXEVYWRCW-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000007865 diluting Methods 0.000 claims abstract description 8
- 238000000967 suction filtration Methods 0.000 claims abstract description 4
- 238000001354 calcination Methods 0.000 claims abstract description 3
- 238000010790 dilution Methods 0.000 claims description 10
- 239000012895 dilution Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 239000005864 Sulphur Substances 0.000 claims 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 abstract description 8
- 238000005259 measurement Methods 0.000 abstract description 8
- 229910052717 sulfur Inorganic materials 0.000 abstract description 8
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract description 6
- 229910052925 anhydrite Inorganic materials 0.000 abstract description 4
- 238000005261 decarburization Methods 0.000 abstract description 3
- 238000000354 decomposition reaction Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000012467 final product Substances 0.000 abstract description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulfur dioxide Inorganic materials O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- XZWYZXLIPXDOLR-UHFFFAOYSA-N metformin Chemical compound CN(C)C(=N)NC(N)=N XZWYZXLIPXDOLR-UHFFFAOYSA-N 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/346—Controlling the process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Treating Waste Gases (AREA)
Abstract
本发明提供一种烟气湿法脱硫石灰石浆料转化率的测定方法,将吸收塔浆料进行抽滤、120℃烘干、研磨,将SiO2在900℃下煅烧2小时、研磨,将烘干浆料用SiO2稀释,使用高频红外碳硫分析仪分别测定SiO2的C含量和S含量以及稀释后的烘干浆料中的C含量和S含量,计算石灰石浆料转化率。在脱硫吸收的过程中,主要是S元素部分替代了石灰石中的C元素最后产物是CaSO3•1/2H2O和CaSO4•2H2O,故可以测量烘干浆料中的C和S的含量来计算摩尔转化率。将C和S含量稀释到仪器的测量的标准范围,提高测量的准确性;在检测过程中SiO2在高温条件下可以参与CaCO3和CaSO4的分解过程,促进脱碳和脱硫过程。
Description
技术领域
本发明涉及钛白粉技术领域,特别涉及一种烟气湿法脱硫石灰石浆料转化率的测定方法。
背景技术
随着工业化进程的加快,工业生产产生的烟气对自然环境造成的污染日益严重。烟气脱硫技术已经被广泛应用,其中石灰石湿法烟气脱硫工艺是目前烟气SO2处理中比较成熟的工艺,因其技术成熟,系统运行稳定高,脱硫效果好被大部分国家在烟气处理中采用。硫酸法制备钛白粉行业中,旋转窑工段的尾气以及锅炉车间的尾气的处理也常采用石灰石湿法脱硫的方法。烟气湿法脱硫主要采用廉价的石灰石作为脱硫吸收剂,石灰石经过粉碎磨成粉末状与水混合搅拌制成吸收浆液。此浆液作为吸收剂用浆液泵输入到吸收塔内,在吸收塔内,吸收塔液与烟气接触反应,烟气中二氧化硫与浆液中的碳酸钙反应以及鼓入的氧化空气进行化学反应生成硫酸钙被吸收脱硫,硫酸钙达到一定饱和度后,结晶形成二水石膏。反应过程如下:
CaCO3+SO2+1/2H2O → CaSO3•1/2H2O + CO2↑ 1-1
2CaSO3•1/2H2O + O2+3H2O → 2CaSO4•2H2O 1-2
石灰石的反应效率直接影响脱硫的效果,及时监测石灰石浆料的转化率,一方面可以让石灰石浆料达到最大的转化率节约成本,另一方面可及时更换新鲜的石灰石浆液,确保SO2的排放量达标。故寻求一种高效、便捷、准确的测定石灰石浆料的的转化率的方法至关重要。
发明内容
本发明提供了一种高效快捷的测量脱硫吸收塔石灰石浆料转化率的方法,用到的仪器是只能测低碳量和低硫量的高频红外碳硫分析仪,而烘干后的吸收浆料的C和S的含量较高,故采用SiO2稀释测量法。具体做法是将吸收塔浆料进行抽滤、120℃烘干、研磨,将SiO2在900℃下煅烧2小时、研磨,将烘干浆料用SiO2稀释一定的倍数,使用高频红外碳硫分析仪分别测定SiO2的C含量和S含量以及稀释后的烘干浆料中的C含量和S含量,来计算转化率。
1.具体的反应方程式如下:
CaCO3+SiO2 → CaSiO3 + CO2↑(高温) 2-1
CaCO3 → CaO + CO2↑(高温) 2-2
2CaSO3+2SiO2 → 2CaSiO3 + 2SO2↑ + O2↑(高温) 2-3
2.碳(C)含量的计算
WC=(W1- W2)*N1 2-4
WC:烘干浆料中的C含量,单位%
W1:稀释后的烘干浆料中C含量,单位%
W2:SiO2中C含量,单位%
N1:稀释倍数
3.硫(S)含量的计算。
WS=(W3- W4)*N2 2-5
WS:烘干浆料中的S含量,单位%
W3:稀释后的烘干浆料中S含量,单位%
W4:SiO2中S含量,单位%
N2:稀释倍数
4.转化率的计算。
R:转化率,单位%
WC:烘干浆料中的C含量,单位%
WS:烘干浆料中的S含量,单位%
M1:C的摩尔质量,单位g/mol
M2:S的摩尔质量,单位g/mol。
在测量S含量时,如果S含量过高,不稀释浆料,浆料的称取量很小,导致S含量的测量不准确。要将浆料精确稀释到合适的范围,因此稀释的倍数也是至关重要的,要根据浆料中S含量的具体数值,在本申请中,一般将浆料稀释100倍。而且在高温条件下,SiO2可以在高温条件下参与分解过程,促进脱硫脱碳的的过程。
有益效果
在脱硫吸收的过程中,主要是S元素部分替代了石灰石中的C元素最后产物是CaSO3•1/2H2O和CaSO4•2H2O(根据公式1-1和1-2可以看出),故可以测量烘干浆料中的C和S的含量来计算摩尔转化率。用SiO2稀释烘干浆料测碳硫含量的过程中,有两个作用:一,将C和S含量稀释到仪器的测量的标准范围,提高测量的准确性;二,在检测过程中SiO2在高温条件下可以参与CaCO3和CaSO4的分解过程,促进脱碳和脱硫过程。
具体实施方式
下面结合具体实施例对本发明进行进一步说明:
实施例1
(1)取吸收后的锅炉脱硫塔浆料进行抽滤,在烘箱内120℃下烘干,然后研磨备用。
(2)取SiO2分析纯,马弗炉中900℃温度下煅烧恒温2h,研磨,用作稀释剂。
(3)将烘干浆料用SiO2稀释10倍。
(4)使用高频红外碳硫分析仪测量SiO2本身的C含量为0.0013%,S含量为0.0008%。
(5)称取1g烘干浆料和9g SiO2混合研磨均匀,使用高频红外碳硫分析仪分析稀释10倍的烘干浆料的C含量为0.30664%,则根据公式2-4烘干浆料稀释10倍前的C含量为3.0534%。
(6)再将烘干浆料用SiO2稀释100倍。称取1g烘干浆料和99g SiO2混合研磨均匀。
(7)使用高频红外碳硫分析仪测量稀释100倍的烘干浆料的S含量为0.14307%,则根据公式2-5烘干浆料稀释100倍前的S含量为14.227%。
通过公式2-6计算此次石灰石浆料的转化率为63.49%。
实施例2
分别通过实施例1的方法,取不同的脱硫塔的浆料进行抽滤和烘干,测量其碳C含量和S含量,计算转化率,得到下面的表中的数据。
不同脱硫塔的浆料的转化率的测定
本厂送检的不同工段的脱硫塔的浆料的转化率是不同的,旋转窑吸收塔的石灰石浆料的转化率高,石灰石浆料的利用率也相对较高,锅炉车间的利用率略低。用本专利提供的测试方法检测石灰石浆料的转化率准确率较高。
对比例1
取实施例1相同的浆料进行以下实验:
(1)取吸收后的锅炉脱硫塔浆料进行抽滤,在烘箱内120℃下烘干,然后研磨备用。
(2)取SiO2分析纯,马弗炉中900℃温度下煅烧恒温2h,研磨,用作稀释剂。
(3)将烘干浆料用SiO2稀释10倍。
(4)使用高频红外碳硫分析仪测量SiO2本身的C含量为0.0013%,S含量为0.0008%。
(5)称取1g烘干浆料和9g SiO2混合研磨均匀,使用高频红外碳硫分析仪分析稀释10倍的烘干浆料的C含量为0.30664%,则根据公式2-4烘干浆料稀释10倍前的C含量为3.0534%。
(6)使用高频红外碳硫分析仪测量稀释10倍的烘干浆料的S含量为1.9894%,烘干浆料稀释10倍前的S含量为19.886%。
计算此次石灰石浆料的转化率为70.95%。
测量S的含量时,将浆料稀释10倍,不能准确的测量出S的含量,因此转化率也不准确,因此稀释的倍数对于测量结果是十分重要的。
本文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种修改或补充或采用类似的方式替代,但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。
Claims (3)
1.一种烟气湿法脱硫石灰石浆料转化率的测定方法,其特征在于,将吸收塔浆料进行抽滤、120℃烘干、研磨,将SiO2在900℃下煅烧2小时、研磨,将烘干浆料用SiO2稀释,使用高频红外碳硫分析仪分别测定SiO2的C含量和S含量以及稀释后的烘干浆料中的C含量和S含量,计算石灰石浆料转化率。
3.根据权利要求1所述的测定方法,其特征在于,测定C含量时,SiO2稀释倍数为10倍;测定S含量时,SiO2稀释倍数为100倍。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010687039.0A CN111855604B (zh) | 2020-07-16 | 2020-07-16 | 一种烟气湿法脱硫石灰石浆料转化率的测定方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010687039.0A CN111855604B (zh) | 2020-07-16 | 2020-07-16 | 一种烟气湿法脱硫石灰石浆料转化率的测定方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111855604A true CN111855604A (zh) | 2020-10-30 |
CN111855604B CN111855604B (zh) | 2023-03-14 |
Family
ID=72983700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010687039.0A Active CN111855604B (zh) | 2020-07-16 | 2020-07-16 | 一种烟气湿法脱硫石灰石浆料转化率的测定方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111855604B (zh) |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4726896A (en) * | 1987-03-09 | 1988-02-23 | International Minerals & Chemical Corp. | Method and apparatus for on-stream analysis of slurried ore |
US4804521A (en) * | 1986-11-07 | 1989-02-14 | Board Of Regents, The University Of Texas System | Process for removing sulfur from sulfur-containing gases |
CN1884048A (zh) * | 2006-06-30 | 2006-12-27 | 昆明理工大学 | 一种用高硫煤还原分解磷石膏的方法 |
CN101254936A (zh) * | 2007-02-26 | 2008-09-03 | 王大年 | 高活性石灰炉内脱硫技术 |
CN201215557Y (zh) * | 2008-07-08 | 2009-04-01 | 河北省电力研究院 | 石灰石石膏脱硫系统吸收塔浆液中CaCO3含量的在线检测装置 |
CN101780364A (zh) * | 2009-01-20 | 2010-07-21 | 贵州电力调度通信局 | 一种循环流化床锅炉脱硫效率的在线计算方法 |
CN101852736A (zh) * | 2009-03-31 | 2010-10-06 | 上海宝钢工业检测公司 | 一种脱硫石膏中硫酸钙测定方法 |
CN102000481A (zh) * | 2009-08-31 | 2011-04-06 | 宝山钢铁股份有限公司 | 一种脱硫灰的处理方法 |
CN102818876A (zh) * | 2012-08-23 | 2012-12-12 | 芜湖新兴铸管有限责任公司 | 燃烧碘量法测定铁矿中硫含量方法 |
CN108677004A (zh) * | 2018-04-04 | 2018-10-19 | 宝钢湛江钢铁有限公司 | 一种煤精干法废脱硫剂的烧结处理方法 |
CN109870443A (zh) * | 2017-12-01 | 2019-06-11 | 上海宝钢工业技术服务有限公司 | 干法脱硫副产物中亚硫酸钙含量的测定方法 |
-
2020
- 2020-07-16 CN CN202010687039.0A patent/CN111855604B/zh active Active
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4804521A (en) * | 1986-11-07 | 1989-02-14 | Board Of Regents, The University Of Texas System | Process for removing sulfur from sulfur-containing gases |
US4726896A (en) * | 1987-03-09 | 1988-02-23 | International Minerals & Chemical Corp. | Method and apparatus for on-stream analysis of slurried ore |
CN1884048A (zh) * | 2006-06-30 | 2006-12-27 | 昆明理工大学 | 一种用高硫煤还原分解磷石膏的方法 |
CN101254936A (zh) * | 2007-02-26 | 2008-09-03 | 王大年 | 高活性石灰炉内脱硫技术 |
CN201215557Y (zh) * | 2008-07-08 | 2009-04-01 | 河北省电力研究院 | 石灰石石膏脱硫系统吸收塔浆液中CaCO3含量的在线检测装置 |
CN101780364A (zh) * | 2009-01-20 | 2010-07-21 | 贵州电力调度通信局 | 一种循环流化床锅炉脱硫效率的在线计算方法 |
CN101852736A (zh) * | 2009-03-31 | 2010-10-06 | 上海宝钢工业检测公司 | 一种脱硫石膏中硫酸钙测定方法 |
CN102000481A (zh) * | 2009-08-31 | 2011-04-06 | 宝山钢铁股份有限公司 | 一种脱硫灰的处理方法 |
CN102818876A (zh) * | 2012-08-23 | 2012-12-12 | 芜湖新兴铸管有限责任公司 | 燃烧碘量法测定铁矿中硫含量方法 |
CN109870443A (zh) * | 2017-12-01 | 2019-06-11 | 上海宝钢工业技术服务有限公司 | 干法脱硫副产物中亚硫酸钙含量的测定方法 |
CN108677004A (zh) * | 2018-04-04 | 2018-10-19 | 宝钢湛江钢铁有限公司 | 一种煤精干法废脱硫剂的烧结处理方法 |
Non-Patent Citations (2)
Title |
---|
尤俊: "循环流化床锅炉炉内脱硫与炉外脱硫比较分析", 《能源与环境》 * |
蔡润夏 等: "石灰石煅烧与硫化条件下磨耗特性", 《化工学报》 * |
Also Published As
Publication number | Publication date |
---|---|
CN111855604B (zh) | 2023-03-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104849173B (zh) | 一种测定脱硫石膏中亚硫酸钙和碳酸钙含量的方法 | |
CN103529016B (zh) | 连铸保护渣中多组分含量的快速测定方法 | |
CN102331422B (zh) | 连续快速测定脱硫石膏成分的方法 | |
WO2020052276A1 (zh) | 一种脱硫吸收塔氧化风机降耗方法和系统 | |
CN105819480A (zh) | 一种半干法烟气脱硫灰改性处理方法 | |
CN109455752B (zh) | 一种脱硫灰渣制备硫酸钙的方法及装置 | |
CN108404651A (zh) | 一种用于新型干法水泥窑烟气催化脱硫的脱硫剂 | |
CN106563353A (zh) | 一种利用拜耳法赤泥浆液催化氧化处理低浓度so2烟气的方法 | |
CN111855604B (zh) | 一种烟气湿法脱硫石灰石浆料转化率的测定方法 | |
CN106732703A (zh) | 一种用于水泥厂烟气脱硝钛基催化剂及其制备方法 | |
CN100453450C (zh) | 一种磷石膏与硫磺结合制酸联产水泥的工艺方法 | |
CN113856430B (zh) | 基于铁锰改性赤泥的水泥窑烟气干法脱硫方法 | |
Jeong et al. | Desulfurization characteristics of limestone slurry with added organic acid | |
CN103272472B (zh) | 一种湿法脱硫系统的烟气脱硫增效剂及其制备方法和应用 | |
KR20160010327A (ko) | 배연탈황 설비용 탈황제를 구성하는 석회석 슬러지의 탈황 효율 개선 첨가제 | |
CN115093135B (zh) | 一种磷石膏脱硫制备贝利特硫铝酸盐水泥熟料的工艺 | |
CN105498509B (zh) | 一种满足烟气污染物深度脱除的钙-镁联合脱硫脱硝方法 | |
CN103263843B (zh) | 一种湿法脱硫系统的烟气脱硫增效剂及其制备方法和应用 | |
CN114460028A (zh) | 一种烧结脱硫脱硝灰中硫酸钙含量的检测方法 | |
CN114509528B (zh) | 一种脱硫石膏中碳酸盐含量的检测方法 | |
CN104084018A (zh) | 一种利用纳米氧化锌回收硫酸尾气中二氧化硫的方法 | |
US4683210A (en) | Method for measuring concentrations of CaCO3 and CaSO3 in a slurry | |
CN114073888A (zh) | 石灰石-石膏湿法脱硫系统中氧化风系统的优化方法 | |
CN115561187B (zh) | 一种烟气脱硫灰中含硫物种及其含量的分析方法 | |
CN103058149B (zh) | 一种石膏生产硫酸的方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |