Apparatus for vapour-phase kinetic studies of organic compounds

Abstract

An apparatus is described that has proved to be particularly useful in studying the vapour-phase kinetics of pyrolysis of high-boiling liquid or solid organic compounds. The design includes a stainless-steel reaction chamber, a spring-operated closing valve, a hypodermic-needle injection assembly and a null-point pressure sensing device consisting of a stainless-steel diaphragm. The pressure change is automatically recorded on a strip-chart recorder. Reproducible results (to within ±2 per cent.) are readily obtainable with either a packed or unpacked seasoned reactor.