Integrated production/use of ultra low-ash coal, premium liquids and clean char. Technical report, December 1--February 28, 1993

Abstract

The objective of this research is to invert the conventional scale of values normally assigned to products of coal utilization processes and make special coal chars (carbons) that, because of their special properties, can be among the most marketable materials in the product slate. Attempts are continuing to develop and prove procedures for comparing the catalyst activity of oxidized activated carbons. In the new studies, dehydrochlorination reactions were carried out in the gas phase and they were applied to alkyl chlorides less reactive than the tertiary chlorides used previously. Adsorption studies show the capacity of carbons made in this study, as measured by the Freundlich equation, have significantly less capacity than that of AR000, a commercially available activated carbon manufactured from bituminous coal. The series of samples having differing ratios of CO and CO 2 surface groups has been prepared and submitted to Amoco Research Center for characterization by x-ray photoelectron spectroscopy (XPS). Data obtained from TPD experiments will be analyzed in conjunction with results obtained from x-ray photoelectron spectroscopy to determine which specific surface functional groups may be responsible for enhanced PNP adsorption.