Use of a shock tube in the study of high temperature gas reactions

Abstract

A modified single‐pulse shock tube has been used to study the pyrolysis of methane in the presence of nitrogen. The reactants are rapidly heated by a reflected shock wave for about a millisecond and cooled by rarefaction waves. In the temperature range 1600–2500°K., nitrogen is found to have no effect on the first order decomposition rates of methane. Above 2500°K., considerable quantities of hydrogen cyanide are observed due to the reaction of nitrogen with hydrocarbons.

A shock tube study of the high temperature reactions of nitrogen with hydrocarbons

“…Details of shock tube operation have already been described in references (9) and (10). Hydrogen is used as the driver gas; small quantities of nitrogen are added to the driver to achieve "tailoring".…”

Production of Hydrogen Cyanide from Methane in a Nitrogen Plasma Jet. Effect of Argon Dilution

“…The only serious reservation to the acceptance of this model concerns the submicrosecond composition relaxation times involved. The only rate data known for this reaction are the shock tube data of Rao et al (1965Rao et al ( , 1967. If the slow rates these workers observe (several millisecond From data of Leutner Ind.…”