Mechanism of Carbon Black Formation

Autor: Roop Chand Bansal, Jean-Baptiste Donnet
Rok vydání: 2018
Předmět:
DOI: 10.1201/9781315138763-2
Popis: Carbon particulate can be obtained from hydrocarbons either by pyrolysis or by incomplete combustion. The gaseous phase particulate matter could be termed "carbon black" or "soot". The former is an industrially manufactured carbon material and is characterized by spherical or nearly spherical fused aggregate particles with a range of sizes between 100 and 1000 nm. In its simplest form the process is assumed to take place by dehydrogenation to atomic carbon or perhaps to C2 radicals, which then condense to solid carbon. As acetylene is formed in all rich premixed hydrocarbon flames and as it is also formed in a large number of pyrolysis reactions under a wide range of conditions, it was suggested by Berthelot and Abadzheh et al that acetylene is the main intermediate in the formation of solid carbon. The carbon paticales become detectable a short distance behind the oxidation zone. Inception of nucleation of soot particles is the most important process in soot formation.
Databáze: OpenAIRE