Reaction of Water Vapor with Carbon Vapor in a High-Intensity Arc

Abstract

the rate constants and certain compositional parameters of virgin gas oils (with low basic nitrogen). For example, plots of log Ko and log Ki vs. log A/N (ratio of aromatics/naphthenes) were linear. The rate constants for recycle and coker stocks deviated from these correlations.

Thermophysical Properties of High-Temperature Reacting Mixtures of Carbon and Water in the Range 400–30,000 K and 0.1–10 atm. Part 1: Equilibrium Composition and Thermodynamic Properties

“…For lower proportions of carbon, the change of sublimation temperature resulting from a change in pressure is lower than that for molar ratios greater than 1. The comparison with previous calculation of Tremblay and Kaliaguinel [12] is also presented in Fig. 12.…”

“…The fragments of hydrocarbons with more hydrogen atoms in the molecule such as C 2 H 3 , C 3 H 2 , C 4 H 2 , etc. are missing due to their negligible fraction when carbon and water reacts [12]. The species of the CHO system are mostly reactive [15,16] and therefore, a large number of chemical species (69 heavy species in all), including relevant atoms, ions and molecules, are taken into account as listed in Table 1.…”

“…To our knowledge, the only comparable investigation was the early work by Tremblay et al [12], who studied the reaction of water vapour with carbon vapour in a high-intensity arc reactor, and gave the chemical equilibrium composition in the limited temperature range from 2,000 to 5,500 K at atmospheric pressure. We note that some of the thermochemical data of the species that were estimated in Tremblay et al's paper have since been updated.…”

Carbon, Silicon, Germanium, Tin, and Lead (Group IVA)

“…These species react with saturated hydrocarbons in moderate to low yields [based on 40% of (C)" -» C x ] to give insertion followed by rearrange ment for X S or double abstractions for 3 The reaction of carbon vapor with water vapor has also been examined. 68 In this case, acetylene, CO, and H 2 were the major products, especially acetylene. It is possible that the acetylene results from C 2 and the CO and H 2 from Ci.…”