Chin, Sungmin Park, Eun-Seuk Jurng, Jongsoo 2024-01-19T13:08:24Z 2024-01-19T13:08:24Z 2022-03-07 2009 https://pubs.kist.re.kr/handle/201004/116063 Vacuum pyrolysis of waste lubrication oil was carried out in a pilot-scale vacuum chamber. A waste oil sample was pyrolyzed in two consecutive reactors. A direct heating system with an electric arc generated from graphite balls was used for pyrolysis under a vacuum. Vacuum pyrolysis of waste lubrication oil was conducted using graphite balls at various surface temperatures (800-1,500 degrees C) and oil feed rates (50-250 cm(3)/min). The main gaseous and vapor products, including H-2, CO and CO2, were analyzed. H2 production uniformly increased while that of CO uniformly decreased at graphite ball temperatures above 1000 degrees C. The hydrogen content increased to a maximum of 80 vol. % at a graphite ball surface temperature of 1,500 degrees C and an oil feed rate of 250 cm(3)/min. At the higher oil feed rates, the pyrolysis reactor pressure was slightly higher. The characteristics of the carbon black collected at each consecutive reactor were analyzed by BET (Brunauer-Emmett-Teller) surface area method, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). English AMER SOC MECHANICAL ENGINEERS PRODUCTION OF HYDROGEN AND CARBON BLACK BY VACUUM PYROLYSIS OF WASTE LUBRICATION OIL Conference 1 17th Annual North American Waste to Energy Conference, pp.207 - 211 17th Annual North American Waste to Energy Conference 207 211 US Chantilly, VA 2009-05-18 NAWTEC17: PROCEEDINGS OF THE 17TH ANNUAL NORTH AMERICAN WASTE TO ENERGY CONFERENCE 000272209100030 2-s2.0-77952818334 Proceedings Paper