Experimental research on corrosions of corundum refractory by alkali metals in catalytic coal gasification process

MAO Yan-dong; JIN Ya-dan; WANG Hui-fang; ZHENG Yan; LI Ke-zhong; BI Ji-cheng; LI Jin-lai; XIN Feng

Volume 42 Issue 11

Nov. 2014

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Article Navigation > Journal of Fuel Chemistry and Technology > 2014 > 42(11): 1332-1339

MAO Yan-dong, JIN Ya-dan, WANG Hui-fang, ZHENG Yan, LI Ke-zhong, BI Ji-cheng, LI Jin-lai, XIN Feng. Experimental research on corrosions of corundum refractory by alkali metals in catalytic coal gasification process[J]. Journal of Fuel Chemistry and Technology, 2014, 42(11): 1332-1339.

Citation:

MAO Yan-dong, JIN Ya-dan, WANG Hui-fang, ZHENG Yan, LI Ke-zhong, BI Ji-cheng, LI Jin-lai, XIN Feng. Experimental research on corrosions of corundum refractory by alkali metals in catalytic coal gasification process[J]. Journal of Fuel Chemistry and Technology, 2014, 42(11): 1332-1339.

Citation:

MAO Yan-dong, JIN Ya-dan, WANG Hui-fang, ZHENG Yan, LI Ke-zhong, BI Ji-cheng, LI Jin-lai, XIN Feng. Experimental research on corrosions of corundum refractory by alkali metals in catalytic coal gasification process[J]. Journal of Fuel Chemistry and Technology, 2014, 42(11): 1332-1339.

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Experimental research on corrosions of corundum refractory by alkali metals in catalytic coal gasification process

1.
School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2.
State Key Lab of Coal-based Low Carbon Energy, Enn Technology & Development Co. Ltd, Langfang 065001, China

Received Date: 2014-05-29
Rev Recd Date: 2014-08-18
Publish Date: 2014-11-30

Abstract

Abstract

The research on the issue of material corrosion in catalytic coal gasifier was focused on, in which the potassium carbonate and the coal ash from catalytic coal gasification with high alkali content were used to test the corrosion to the corundum refractory. The corundum refractory corroded by alkali metals at different reaction atmospheres, temperatures, reaction time, and alkali metal forms was characterized by using scanning electron microscope and energy spectrum analysis(SEM-EDX), X-ray diffraction (XRD) analysis, and ²⁷Al nuclear magnetic resonance (NMR) analysis. The results show that the corrosive behavior of alkali metals on refractory is affected by temperature, reaction atmosphere, reaction time, and alkali metal forms. Specially, the more serious corrosion of corundum refractory in air takes place due to a new phase, potassium aluminate, being formed via chemical reaction between potassium carbonate or coal ash with high alkali content and corundum refractory, and the content of potassium aluminate increases with increasing temperature and reaction time.
- corrosion,
- alkali metals,
- corundum refractory,
- potassium carbonate,
- coal ash

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References(27)

References

白树华, 邓惠平, 董众兵, 王洋. 加压流化床煤气化炉衬里材料的选择与烘制[J]. 煤炭转化, 2001, 24(4): 28-31.(BAI Shu-hua, DENG Hui-ping, DONG Zhong-bing, WANG Yang. Selecting and drying of refractory for a pressurized fluidized bed coal gasifier[J]. Journal of Coal Conversion, 2001, 24(4): 28-31.)

毛燕东, 李克忠, 孙志强, 毕继诚, 辛峰, 李金来. 小型流化床燃煤自供热煤催化气化特性研究[J]. 高等化学工程学报, 2013, 27(5): 798-804.(MAO Yan-dong, LI Ke-zhong, SUN Zhi-qiang, BI Ji-cheng, XIN Feng, LI Jin-lai. Characteristics of catalytic coal gasification in lab scale autothermal fluidized bed[J]. Journal of Chemical Engineering of Chinese Universities, 2013, 27(5): 798-804.)

BI J C, LI K Z, MAO Y D, QU X. Method for preparing methane-containing gas through multi-region coal gasification and gasification furnace thereof: CN, 102021039A[P]. 2011-04-20.

毛燕东, 毕继诚, 李金来, 甘中学. 一种由煤催化气化制甲烷的方法: CN, 201010532452.6[P]. 2010-11-02.(MAO Yan-dong, BI Ji-cheng, LI Jin-lai, GAN Zhong-xue. A method for producing methane by catalytic gasification of coal: CN, 201010532452.6[P]. 2010-11-02.)

毕继诚, 毛燕东, 李克忠. 一种燃煤自供热的催化气化制天然气的工艺和系统: CN, 201210196987.X[P]. 2012-06-15.(BI Ji-cheng, MAO Yan-dong, LI Ke-zhong. Process by catalytic gasification of natural gas to a coal self-heating: CN, 201210196987.X[P]. 2012-06-15.)

PAN Y G, LIU M Z, JI C Y, HU M J, WANG Z. To prepar the town gas by catalytic gasification of Da-Tong coal under elevated pressure: I. The characteristics of catalytic gasification of Da-Tong coal and its coke[J]. J East Chin Sch Chem Eng Technol, 1986, 12(1): 25-33.

HIRSCH R L, GALLAGEHER J E, LESSARD J R, WESSELHOFT R D. Catalytic coal gasification: An emerging technology[J]. Science, 1982, 215(4529): 121-127.

NAHAS N C. Exxon catalytic coal gasification process[J]. Fuel, 1983, 62(2): 239-241.

NAHAS N C. Process for the catalytic gasification of coal: US, 4077778[P]. 1978-03-07.

LANG R J, PABST J K. EXXON catalytic coal-gasification-process development and predevelopment program[R]. Baytown: EXXON Research and Engineering CO, 1976-1982.

NAHAS N C. Catalytic steam gasification of petroleum coke to methane: US, 2007/0083072 A1[P]. 2007-04-12.

HIPPO E J, SHETH A C. Mild catalytic steam gasification process: US, 2007/0000177 A1[P]. 2007-01-04.

VERAA M J, BELL A T. Effect of alkali metal catalysts on gasification of coal char[J]. Fuel, 1978, 57(4): 194-200.

MCKEE D W, SPIRO C L, KOSKY P G. Catalysis of coal char gasification by alkali metal salts[J]. Fuel, 1983, 62(2): 217-220.

YEBOAH Y D, XU Y, SHETH A C. Catalytic gasification of coal using eutectic salts: Identification of eutectics[J]. Carbon, 2003, 41(2): 203-214.

SHETH A C, YEBOAH Y D, GODAVARTY A, SASTRY C. Catalytic gasification of coal using eutectic salts: Reaction kinetics with binary and ternary eutectic catalysts[J]. Fuel, 2003, 82(3): 305-317.

PRIGENT P, BOUCHETOU M L, POIRIER J. Andalusite: An amazing refractory raw material with excellent corrosion resistance to sodium vapours[J]. Ceram Int, 2011, 37(1): 2287-2296.

新民, 李连洲.在可变气体介质条件下莫来石刚玉耐火材料与碱的相互作用[J]. 国外耐火材料, 1996, 35(5): 52-55.(XIN Min, LI Lian-zhou. The interaction of alkali materials and mullite/corundum refractories under variable gas medium conditions[J]. Foreign Refractories, 1996, 35(5): 52-55.)

GB/T149823-94, 耐火材料抗碱性试验方法[S].(GB/T149823-94, The method for alkali resistance of refractions[S].)

XU G T, DU H G. The mechanism and discussion of alkali-corrosion of refractories containing carbon[J] . Study on Iron & Steel, 1998, 26(5): 45-48.

徐国涛, 刁日升, 杜鹤桂, 孙希文. 高碱金属钒钛渣对高炉炉衬材料的侵蚀研究[J]. 钢铁钒钛, 2004, 25(2): 27-34.(XU Gou-tao, DIAO Ri-sheng, DU He-gui, SUN Xi-wen. Study on erosion process of vanadium-titanium bearing slag with high alkali content on blast furnace lining[J]. Journal of Iron Steel Vanadium Titanium, 2004, 25(2): 27-34.)

徐国涛, 杜鹤桂. 含炭耐火材料抗碱侵蚀机制及探讨[J]. 钢铁研究, 1998, 26(5): 55-59.(XU Guo-tao, DU He-gui. Discussion on alkali resistance mechanism of carbon containing refractory[J]. Journal of Iron Steel Vanadium Titanium, 1998, 26(5): 55-59.)

李伟, 孙康, 吴剑辉, 刘明月. 碳热还原条件下SiO₂-A1₂O₃系耐火材料的腐蚀行为[J]. 有色金属, 2001, 53(4): 44-46. (LI Wei, SUN Kang, WU Jian-hui, LIU Min-yue. Corrosion behavior of refractory materials under carbothermic reduction condition[J]. Journal of Nonferrous metal, 2001, 53(4): 44-46.)

周世倬. 碱金属与高炉内衬[J]. 钢铁钒钛, 1983, 4(1): 20-27.(ZHOU Shi-zhuo. Alkali metal and blast furnace lining[J]. Journal of Iron Steel Vanadium Titanium, 1983, 4(1): 20-27.)

高峰, 单晓伟. 煤灰在不同耐火砖表面的润湿性与侵蚀性研究[J]. 燃料化学学报, 2012, 40(7): 769-775.(GAO Feng, SHAN Xiao-wei. Wet tability and erodibility of coal ash on the surface of different referactories[J]. Journal of Fuel Chemistry and Technology, 2012, 40(7): 769-775.)

STJERNBERG J, OLIVAS M A, ANTTI M L. Laboratory scale study of the degradation of mullite/corundum refractories by reaction with alkali-doped deposit materials[J]. Ceram Int, 2013, 39(1): 791-800.

刘景林, 李连洲. 水泥回转窑中碱对氧化铝质耐火材料的作用[J]. 国外耐火材料, 1996, (2): 53-55. (LIU Jing-lin, LI Lian-zhou. The interaction of alkali materials and alumina refractories in the cement rotary kiln[J]. Foreign Refractories, 1996, (2): 53-55.)

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