IR studies of carbons—VI. The effects of KHCO3 on cellulose pyrolysis and char oxidation☆
作者： C. Morterra , M.J.D. Low
DOI: 10.1016/0008-6223(85)90026-0
关键词:
摘要: The pyrolysis in vacuum of cellulose containing 5 wt. % KHCO3 (KHC) was followed by IR photothermal beam deflection spectroscopy, and compared with observations made pure (PC) [Carbon 21, 283(1983)]. KHCO3, KOH K2CO3 formed from it, drastically altered the carbonization subsequent oxidation KHC chars. became charred at 140 °C disrupted 220 °C. surface layer a mixture weak acid K salts. not until 310 persisted about 500 °C, when metallic evolved. Unlike PC, contained no aromatic CH structures. proceeded more rapidly to greater extent than PC. chars also markedly affected; burn-off occurred much lower temperatures, gasification temperature range narrower, PC
elsevier.com
sci-hub.se 参考文章(22)
Yasumasa Yamashita, Koji Ouchi, Influence of alkali on the carbonization process—II Carbon. ,vol. 20, pp. 47- 53 ,(1982) , 10.1016/0008-6223(82)90073-2
C. Morterra, M.J.D. Low, IR studies of carbons—II: The vacuum pyrolysis of cellulose Carbon. ,vol. 21, pp. 283- 288 ,(1983) , 10.1016/0008-6223(83)90092-1
Yasumasa Yamashita, Koji Ouchi, Influence of alkali on the carbonization process—III Carbon. ,vol. 20, pp. 55- 58 ,(1982) , 10.1016/0008-6223(82)90074-4
C. Morterra, M.J.D. Low, A.G. Severdia, IR studies of carbons—III Carbon. ,vol. 22, pp. 5- 12 ,(1984) , 10.1016/0008-6223(84)90127-1
Foil A. Miller, Gerald L. Carlson, Freeman F. Bentley, Wade H. Jones, Infrared spectra of inorganic ions in the cesium bromide region (700–300 cm−1) Spectrochimica Acta. ,vol. 16, pp. 135- 235 ,(1960) , 10.1016/0371-1951(60)80077-X
D.W. McKee, Gasification of graphite in carbon dioxide and water vapor—the catalytic effects of alkali metal salts Carbon. ,vol. 20, pp. 59- 66 ,(1982) , 10.1016/0008-6223(82)90075-6
J.F Rakszawski, W.E Parker, The effect of group IIIA–VIA elements and their oxides on graphite oxidation Carbon. ,vol. 2, pp. 53- 63 ,(1964) , 10.1016/0008-6223(64)90028-4
M.J.D. Low, G.A. Parodi, M. Lacroix, A Detection System for Photoacoustic Spectroscopy Instrumentation Science & Technology. ,vol. 11, pp. 265- 271 ,(1981) , 10.1080/10739148108543528
F. A. Miller, C. H. Wilkins, Infrared Spectra and Characteristic Frequencies of Inorganic Ions Analytical Chemistry. ,vol. 24, pp. 1253- 1294 ,(1952) , 10.1021/AC60068A007
C. Morterra, M.J.D. Low, A.G. Severdia, Some effects of specular and diffuse reflection on infrared photoacoustic spectra Infrared Physics. ,vol. 22, pp. 221- 227 ,(1982) , 10.1016/0020-0891(82)90047-1