Topic
Carbochemistry
About: Carbochemistry is a research topic. Over the lifetime, 1010 publications have been published within this topic receiving 16626 citations.
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TL;DR: In this article, selected model compounds representing coal structural entities were studied under the conditions of HF-BF 3 -H 2 catalysed mild coal liquefaction and showed that the formation of condensation products in these conversion processes could be suppressed by the use of a good hydrogen donor, such as isopentane.
24 citations
TL;DR: In this article, Australian coals of varying rank from a well characterized suite and with a wide range of atomic H C ratios have been reacted with hydrogen in tetralin at 405 °C both in the presence and absence of a tin promoter, and with both hydrogen and tin without solvent at 320 °C.
24 citations
TL;DR: In this paper, a review of the work performed mainly at Bergbau-Forschung during the past few years is presented, where a method and quantitative data are provided for the calculation of reaction rates for uncatalyzed and potassium-catalyzed gasification, on the example of chars from high volatile bituminous coals.
Abstract: This contribution reviews the work performed mainly at Bergbau-Forschung during the past few years. First, it deals with the quantitative description of gasification kinetics, taking into account the pressure of the gasifying agent and partial pressures of product gases. Thereby, a method and quantitative data are provided for the calculation of reaction rates for uncatalyzed and potassium-catalyzed gasification, on the example of chars from high volatile bituminous coals. In addition, a method for characterization of internal surface area by oxygen chemisorption with respect to char reactivity has been improved. Progress has also been achieved in the assessment of the impact of pyrolysis conditions, especially the time-temperature profile during char formation, on its chemical activity during subsequent use.
24 citations
TL;DR: In this paper, a selection of fifteen Victorian brown coals, which varied in lithotype but only slightly in rank, were subjected to supercritical gas extraction with toluene, and good correlations were obtained between the total conversions and the volatile matter content of the coals.
24 citations
24 citations