Characteristics of the releasing of sulfur dioxide and nitric oxide and combustion by adding the calcium based organic compound to lignite

ZHOU Fei; NIU Sheng-li; ZOU Peng; HAN Kui-hua; LU Chun-mei; LI Gang

Volume 40 Issue 02

Feb. 2012

Turn off MathJax

Article Contents

Article Navigation > Journal of Fuel Chemistry and Technology > 2012 > 40(02): 149-155

ZHOU Fei, NIU Sheng-li, ZOU Peng, HAN Kui-hua, LU Chun-mei, LI Gang. Characteristics of the releasing of sulfur dioxide and nitric oxide and combustion by adding the calcium based organic compound to lignite[J]. Journal of Fuel Chemistry and Technology, 2012, 40(02): 149-155.

Citation:

ZHOU Fei, NIU Sheng-li, ZOU Peng, HAN Kui-hua, LU Chun-mei, LI Gang. Characteristics of the releasing of sulfur dioxide and nitric oxide and combustion by adding the calcium based organic compound to lignite[J]. Journal of Fuel Chemistry and Technology, 2012, 40(02): 149-155.

Citation:

ZHOU Fei, NIU Sheng-li, ZOU Peng, HAN Kui-hua, LU Chun-mei, LI Gang. Characteristics of the releasing of sulfur dioxide and nitric oxide and combustion by adding the calcium based organic compound to lignite[J]. Journal of Fuel Chemistry and Technology, 2012, 40(02): 149-155.

PDF( 597 KB)

Characteristics of the releasing of sulfur dioxide and nitric oxide and combustion by adding the calcium based organic compound to lignite

1.
National Engineering Laboratory for Coal-Burning Pollutants Emission Reduction, Shandong University, Jinan 250061, China;
2.
Huaneng Ji'nan Huangtai Power Plant CO, Ltd, Ji'nan 250100, China

Received Date: 2011-03-17
Rev Recd Date: 2011-06-27
Publish Date: 2012-02-29

Abstract

Abstract

The effect of the calcium based organic compounds of the modified dolomite by acetate (MDA), calcium acetate (CA) and calcium propionate (CP) on the release of sulfur dioxide (SO₂) and nitric oxide (NO) during LK-lignite combustion has been investigated on a horizontal tuber furnace. And also, the combustion characteristics of them have been studied in a thermogravimetric analyzer. Calcium based organic compound can suppress the release of SO₂ and NO under the suitable conditions effectively. In the temperature range of 973~1 273 K, the calcium based organic can inhibit the release of SO₂. But when the temperature grows higher, the inhibition effect of the calcium based organic reduces except CA. In the lower temperature range of 973~1 173 K, the calcium based organic promotes the release of NO, but when the temperature is higher than 1 173 K, CA and CP show the inhibition of NO obviously. The inhibition effect of SO₂ and NO by calcium based organic generally increases with the increase of the mole ratio of calcium to sulfur (Ca/S). But when the Ca/S is between 2.0 and 2.5, MDA promotes the release of NO. With adding the calcium based organic to LK-lignite, when the Ca/S is 2.0, the ignition performance of LK-lignite improves, the ignition reduces 10~33 K, but its burn time is slightly lengthened.
- calcium based organic,
- lignite,
- release of sulfur dioxide and nitric oxide,
- combustion characteristic

FullText(HTML)

References(14)

References

PATSIAS A A, NIMMO W, GIBBS B M, WILLIAMS P T. Calcium-based sorbents for simultaneous NO_x/SO_x reduction in a down-fired furnace[J]. Fuel, 2005, 84(14/15): 1864-1873.

NIU S L, HAN K H, LU C M, SUN R Y. Thermogravimetric analysis of the relationship among calcium magnesium acetate, calcium acetate and magnesium actate[J]. Appl Energy, 2010, 87(7): 2237-2242.

肖海平, 周俊虎, 刘建忠, 孙保民. 有机钙高温脱硫特性[J]. 环境科学, 2007, 28(8): 1861-1865. (XIAO Hai-ping, ZHOU Jun-hu, LIU Jian-zhong, SUN Bao-min. Desulfurization characteristic of organic calcium at high temperature[J]. Environmental Science, 2007, 28(8): 1861-1865.)

赵宗彬, 李保庆. 煤中矿物质对NO-半焦还原反应的影响[J]. 燃料化学学报, 2001, 29(2): 129-134. (ZHAO Zong-bin, LI Bao-qing. Influence of mineral matter in coal on NO-Char reaction[J]. Journal of Fuel Chemistry and Technology, 2001, 29(2): 129-134.)

KORDYLEWSKI W, ZACHARCZUK W, HARDY T, KACZMARCZYK J. The effect of the calcium in lignite on its effectiveness as a reburn fuel[J]. Fuel, 2005, 84(9): 1110-1115.

闫晓, 车得福, 徐通模. 煤灰及各种矿物质对SO₂排放特性的影响[J]. 燃料化学学报, 2005, 33(3): 273-277. (YAN Xiao, CHE De-fu, XU Tong-mo. Effects of coal rank, demineralization and inherent mineral species on SO₂ emission in coal combustion process [J]. Journal of Fuel Chemistry and Technology, 2005, 33(3): 273-277.)

肖海平. 有机钙同时脱硫脱硝的机理研究. 杭州: 浙江大学, 2006. (XIAO Hai-ping. Mechanisms study of simultaneously control of SO₂ and NO_x emission with organic calcium. Hangzhou : Zhejiang Universiy, 2006.)

RALF F W, KOPSE L, HALANG S. Catalytic influence of ash elments on NO_x formation in char combustion under fluidized bed condition[J]. Fuel, 1997, 76(4): 345-351.

赵宗彬, 李文, 李保庆, 陈浩侃. 钠、钙、铁对模型化合物热解及燃烧过程中氮逸出规律的影响[J]. 燃料化学学报, 30(4): 294-299. (ZHAO Zong-bin, LI Wen, LI Bao-qing, CHEN Hao-kan. Effect of Na, Ca and Fe on evolution of fuel-nitrogen during pyrolysis and combustion of model compound[J]. Journal of Fuel Chemistry and Technology, 2002, 30(4): 294-299.)

韩奎华, 路春美, 侯庆伟, 刘志超, 马传利, 高山. 煤在不同O₂/CO₂气氛下燃烧硫析出特性研究[J]. 燃料化学学报, 2004, 35(5): 517-521. (HAN Kui-hua, LU Chun-mei, HOU Qing-wei, LIU Zhi-chao, MA Chuan-li, GAO Shan. The characterisitics of sulfur release during coal combustion in the mixed-CO₂ gas with different oxygen concentrations[J]. Journal of Fuel Chemistry and Technology, 2004, 35(5): 517-521.)

YAMASHITA H, YAMADA H, TOMITA A. Reaction of nitric oxide with metal loaded carbon in the presence of oxygen[J]. Appl Catal, 1991, 78(2): 1-6.

唐浩, 钟北京. CaO对煤焦还原NO的催化作用[J]. 工程热物理学报, 2003, 24(6): 1058-1060. (TANG Hao, ZHONG Bei-jing. Catalyst effect of CaO on NO reduction by coal char[J]. Journal of Engineering Thermophysics, 2003, 24(6): 1058-1060.)

李莹莹, 刘艳华, 车得福. 添加剂对燃煤NO排放的影响[J]. 燃料科学与技术, 2004, 10(3): 275-277. (LI Ying-ying, LIU Yan-hua, CHE De-fu. Effect of additives on NO emission during coal combustion[J]. Journal of Combustion Science and Technology, 2004, 10(3): 275-277.)

NIU S L, HAN K H, LU C M. Characteristic of coal combustion in oxygen/carbon dioxide atmosphere and nitric oxide release during this process[J]. Energy Convers Manage, 2010, 52(1): 532-537.

Relative Articles

Supplements(0)

Cited By

Proportional views