Micro-FTIR study of the blend of humates with calcium hydroxide used to prepare smokeless fuel briquettes

被引：22

作者：

Blesa, MJ ^{[1
]}

Miranda, JL ^{[1
]}

Moliner, R ^{[1
]}

机构：

[1] CSIC, Inst Carboquim, E-50080 Zaragoza, Spain

来源：

VIBRATIONAL SPECTROSCOPY | 2003年 / 33卷 / 1-2期

关键词：

infrared microscopy; humates; smokeless fuel briquettes; curing;

D O I：

10.1016/S0924-2031(03)00089-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The blend of humates with calcium hydroxide and the briquettes prepared with this blend have been used by Fourier Transform Infrared Microscopy Spectrometers. An adequate preparation of the microsamples allows to obtain good quality spectra to elucidate the coal constituents and additives of the blend. It has been followed the molecular changes produced by the effect of the temperature. It has been observed the decrease of the hydroxyl and methoxy groups and the increase of the carboxylates. Fuel briquettes have been prepared with carbonaceous materials which require the use of a binder to link particles. Moreover, a calcium additive has been sometimes added to reduce sulphur emissions during combustion. As a consequence of this addition, a chemical reaction is produced. It is observed that these prepared briquettes are waterproof. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：31 / 35

页数：5