title: Modeling of acetylene pyrolysis under steel vacuum carburizing conditions in a tubular flow reactor.
abstract: In the present work, the pyrolysis of acetylene was studied under steel vacuum carburizing conditions in a tubular flow reactor. The pyrolysis temperature ranged from 650 degrees C to 1050 degrees C. The partial pressure of acetylene in the feed mixture was 10 and 20 mbar, respectively, while the rest of the mixture consisted of nitrogen. The total pressure of the mixture was 1.6 bar. A kinetic mechanism which consists of seven species and nine reactions has been used in the commercial computational fluid dynamics (CFD) software Fluent. The species transport and reaction model of Fluent was used in the simulations. A comparison of simulated and experimental results is presented in this paper.
authors.affiliation: Engler-Bunte-Institut, Bereich Gas, Erdöl und Kohle, Engler Bunte Ring 1, Universität Karlsruhe, D-76131 Karlsruhe, Germany. rafi_ullah.khan@ciw.uni-karlsruhe.de
authors.forename: Rafi Ullah
authors.initials: RU
authors.lastname: Khan
authors.forename: Siegfried
authors.initials: S
authors.lastname: Bajohr
authors.forename: Frank
authors.initials: F
authors.lastname: Graf
authors.forename: Rainer
authors.initials: R
authors.lastname: Reimert
mesh_terms: D000114:Acetylene / Q000737:chemistry*; D002623:Chemistry Techniques, Analytical / Q000295:instrumentation* / Q000379:methods*; D007700:Kinetics; D008956:Models, Chemical; D010313:Partial Pressure; D012212:Rheology; D013232:Steel; D013696:Temperature; D014618:Vacuum
chemical_list: D013232:Steel; D000114:Acetylene