褐煤近临界水氧化液化固体残渣特性研究
收稿日期: 2017-02-13
修回日期: 2017-03-30
网络出版日期: 2017-06-30
基金资助
重庆市重点自然科学基金项目（cstc2013jjB90003）
Characteristics of Residues from Lignite Liquefaction in Near-Critical Water
Received date: 2017-02-13
Revised date: 2017-03-30
Online published: 2017-06-30
陶定坤 , 冉景煜 , 张 力 , 蒲 舸 , 杨仲卿 , 秦昌雷 , 杜学森 . 褐煤近临界水氧化液化固体残渣特性研究[J]. 新能源进展, 2017 , 5(3) : 226 -230 . DOI: 10.3969/j.issn.2095-560X.2017.03.010
XRD and FT-IR were used to analyze the structural characteristics of the solid residues from lignite oxidation in near-critical water and low-temperature water. The results showed that the lignite was degraded rapidly and effectively under near-critical water condition, and water-soluble substances were formed. The height and diameter of the aromatic layer in the residues dramatically decreased. The contents of amino, methylene and phenolic hydroxyl decreased significantly, alkyl ether was the most stable, almost have no reaction; carboxyl completely disappeared, OH•••OH is more stable than carboxyl.
Key words： Houma lignite; near-critical water; lignite liquefaction; XRD; FT-IR; solid residue
[1] MIURA K, MAE K, OKUTSU H, et al. New oxidative degradation method for producing fatty acids in high yields and high selectivity from low-rank coals[J]. Energy & fuels, 1996, 10(6): 1196-1201. DOI: 10.1021/ef960051a.
[2] MAE K, SHINDO H, MIURA K. A new two-step oxidative degradation method for producing valuable chemicals from low rank coals under mild conditions[J]. Energy & fuels, 2001, 15(3): 611-617. DOI: 10.1021/ef000177e.
[3] JUETTNER B, SMITH R C, HOWARD H C. The action of nitric acid on a bituminous coal[J]. Journal of the American chemical society, 1935, 57(11): 2322-2326. DOI: 10.1021/ja01314a082.
[4] BURKE S, JARVIE A W P, GAINES A F. A modification of the Deno oxidation process for use in the solubilization of higher ranked coals[J]. Fuel, 1992, 71(4): 395-399. DOI: 10.1016/0016-2361(92)90028-M.
[5] ALVAREZ R, CLEMENTE C, GÓMEZ-LIMÓN D. The influence of nitric acid oxidation of low rank coal and its impact on coal structure[J]. Fuel, 2003, 82(15/17): 2007-2015. DOI: 10.1016/S0016-2361(03)00176-5.
[6] 宫贵贞, 魏贤勇, 宗志敏. 两种煤的次氯酸钠水溶液降解产物的分离与分析[J]. 燃料化学学报, 2012, 40(1): 1-7. DOI: 10.3969/j.issn.0253-2409.2012.01.001.
[7] LIU F J, WEI X Y, ZHU Y, et al. Oxidation of Shengli lignite with aqueous sodium hypochlorite promoted by pretreatment with aqueous hydrogen peroxide[J]. Fuel, 2013, 111: 211-215. DOI: 10.1016/j.fuel.2013.04.041.
[8] 张秋民, 潘琦琨, 何德民, 等. 碱-氧氧化霍林河褐煤的研究[J]. 煤炭转化, 2007, 30(3): 5-7, 44. DOI: 10.3969/j.issn.1004-4248.2007.03.002.
[9] 关珺, 何德民, 李佩勇, 等. 阳泉无烟煤两段氧化提高苯多羧酸产率研究[J]. 大连理工大学学报, 2012, 52(3): 333-337.
[10] WANG W H, HOU Y C, WU W Z, et al. High-temperature alkali-oxygen oxidation of lignite to produce benzene polycarboxylic acids[J]. Industrial & engineering chemistry research, 2013, 52(2): 680-685. DOI: 10.1021/ie3029398.
[11] PAINTER P C, STARSINIC M, COLEMAN M. Determination of functional groups in coal by Fourier transform interferometry[M]//Ferraro J R, Basile L J. Fourier Transform Infrared Spectra. New York: Academic Press, 1985: 169-241. DOI: 10.1016/B978-0-12-254104-9.50011-0.
[12] 朱学栋, 朱子彬, 韩崇家, 等. 煤中含氧官能团的红外光谱定量分析[J]. 燃料化学学报, 1999, 27(4): 335-339.
[13] 冯杰, 李文英, 谢克昌. 傅立叶红外光谱法对煤结构的研究[J]. 中国矿业大学学报, 2002, 31(5): 362-366. DOI: 10.3321/j.issn:1000-1964.2002.05.006.
[14] 王丽, 张蓬洲. 煤的XRD的结构分析[J]. 煤炭转化, 1997, 20(1): 50-53.
[15] 罗陨飞, 李文华. 中低变质程度煤显微组分大分子结构的XRD研究[J]. 煤炭学报, 2004, 29(3): 338-341. DOI: 10.3321/j.issn:0253-9993.2004.03.018.
[16] 庄国霖, 何劲波, 姚斌. 煤及半焦的XRD结构分析[J]. 河南城建学院学报, 2014, 23(1): 32-37. DOI: 10.3969/j.issn.1674-7046.2014.01.008.
[17] IBARRA J, MUÑOZ E, MOLINER R. FTIR study of the evolution of coal structure during the coalification process[J]. Organic geochemistry, 1996, 24(6/7): 725-735. DOI: 10.1016/0146-6380(96)00063-0.
[18] XIONG G, LI Y S, JIN L J, et al. In situ FT-IR spectroscopic studies on thermal decomposition of the weak covalent bonds of brown coal[J]. Journal of analytical and applied pyrolysis, 2015, 115: 262-267. DOI: 10.1016/j.jaap.2015.08.002.
[19] 韩峰, 张衍国, 蒙爱红, 等. 云南褐煤结构的FTIR分析[J]. 煤炭学报, 2014, 39(11): 2293-2299. DOI: 10.13225/j.cnki.jccs.2013.1661.
/
| 〈 |
|
〉 |
