ISSN:
1573-8310
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Conclusions 1. The authors have investigated the effect of additon of KOH during carbonization of petroleum residues by direct distillation and cracking on the sulfur content of the coke and other carbonization products. 2. The dehydrogenating effect of added alkali may be seen from the formation of hydrogen-rich gas. The yield of hydrogen may be increased almost to 1% on the feedstock. 3. At moderate KOH consumptions (4–5% on the feedstock), one may obtain coke with up to 2% sulfur from residuum, and with up to 1.8% sulfur from cracked residuum, as against 4.4 and 3.6% in the absence of KOH, respectively. 4. With addition of more than 10–11% KOH, coke with a highly developed surface of the active carbon type is obtained. The specific surface of the coke obtained from residuum is much greater than that of coke from cracked residuum. 5. The change in the sulfur content of the cokes is linked with the activity and area of their specific surfaces and depends on the origin of the feedstock, upon which the possibility of formation of sulfur-carbon complexes depends.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00730293
