๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

The formation of aromatics from the gas-phase pyrolysis of stigmasterol: kinetics

โœ Scribed by Eun-Jae Shin; Mark R. Nimlos; Robert J. Evans

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
230 KB
Volume
80
Category
Article
ISSN
0016-2361

No coin nor oath required. For personal study only.

โœฆ Synopsis

The gas-phase pyrolysis of stigmasterol was investigated using molecular beam mass spectrometry to study the reaction pathways that lead to the formation of aromatic compounds and to build an empirical kinetic model. We used multivariate data analysis to extract trends in the data and identify major product classes. Based on this analysis, we have developed a lumped kinetic model to describe the formation of intermediates and polynuclear aromatic hydrocarbons (PAHs). In our reaction scheme, stigmasterol is converted to highly substituted aliphatic ring compounds. These intermediate compounds are then converted to PAHs. We determined kinetic parameters for the two step process and used them to produce response surface plots for the two product classes as a function of temperature and gas-phase residence time.

๐Ÿ“œ SIMILAR VOLUMES

The formation of aromatics from the gas-
The formation of aromatics from the gas-phase pyrolysis of stigmasterol: kinetics
โœ E. Shin ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science โš– 188 KB

and the time for release will move up as burning temperature increases. In addition, sulphur release during coal combustion can be controlled by adding calcium-based sorbent. However, different sorbents should be chosen according to sulphur existence pattern in coal. 02/01952 Synthesis and characte

On the mechanism of the formation of ful
On the mechanism of the formation of fulvenallene from the gas phase pyrolysis of indazole. The gas phase pyrolysis of n-deuterio-3-methylindazole.
โœ W.D. Crow; M.N. Paddon-Row ๐Ÿ“‚ Article ๐Ÿ“… 1972 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 212 KB

A ei@fiwnt property of pherurlnttrene alldpbe?gloarbene generatedlnthegaepbaee 8t &llperatuFee )7m" ie thdl' abilit# to lll&gO l'il@ OOll~tiOn to gin OyWLOOyOlOpe&8diene'~2 (2s) and ful venallens Q) plue et~layclopent.sdime (2b) reepeotively. However it rae dieoovered subeequently that the gas pheee

Kinetic analysis of the gas-phase pyroly
Kinetic analysis of the gas-phase pyrolysis of carbohydrates
โœ Eun-Jae Shin; Mark R. Nimlos; Robert J. Evans ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 589 KB

Cellulose-derived pyrolysis products and selected primary products, 5-hydroxymethyl furfural (5-HMF), levoglucosan and hydroxyacetaldehyde (HAA) were used as starting materials for kinetic studies of gas-phase pyrolysis by using ยฏow tube reactors and product detection with molecular beam mass spectr

Pyrolysis kinetics of 2-phenoxycarboxyli
Pyrolysis kinetics of 2-phenoxycarboxylic acids in the gas phase
โœ Gabriel Chuchani; Rosa M. Dominguez; Alexandra Rotinov; Ignacio Martin ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 67 KB ๐Ÿ‘ 2 views

The gas-phase pyrolysis kinetics of primary, secondary and tertiary 2-phenoxycarboxylic acids were studied over the temperature range 240.1-409.9 ยฐC and pressure range 16.3-67.8 Torr. The elimination reactions, carried out in seasoned vessels and in the presence of the free radical chain inhibitor c