GC-FTIR-MS analysis of volatile products in the radiolysis of nitrobenzene-carbon tetrachloride solution

1993 ◽  
Vol 35 (9-12) ◽  
pp. 574-578 ◽  
Author(s):  
J. Kuruc ◽  
Mihir K. Sahoo ◽  
P. Kuráň
Keyword(s):  
Carbon Tetrachloride ◽  
Carbon Tetrachloride Solution ◽  
Ms Analysis ◽  
Volatile Products

The Photo‐Chlorination of Methyl Chloroformate in Carbon Tetrachloride Solution

1949 ◽  
Vol 17 (6) ◽  
pp. 566-573 ◽  
Author(s):  
T. L. Batke ◽  
L. M. Dorfman ◽  
D. J. LeRoy
Keyword(s):  
Carbon Tetrachloride ◽  
Carbon Tetrachloride Solution

Synthesis of Silicon Carbide Films from Partially Oxidized Polyvinylsilane by Carbon Tetrachloride Solution Casting

2002 ◽  
Vol 17 (1) ◽  
pp. 214-223 ◽  
Author(s):  
Masaki Narisawa ◽  
Takeshi Hasegawa ◽  
Kiyohito Okamura ◽  
Masayoshi Itoh ◽  
Thomas Apple ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Carbon Tetrachloride ◽  
Radical Polymerization ◽  
Air Flow ◽  
Spectroscopic Studies ◽  
Flow Time ◽  
Silica Layer ◽  
Solution Casting ◽  
Amorphous Films ◽  
Carbon Tetrachloride Solution

Polyvinylsilane (PVS), derived from vinylsilane by radical polymerization, was partially oxidized in hot carbon tetrachloride solution by flowing air. If the air flow time is adjusted, soft gel films can be formed in a Teflon dish by casting the PVS solution. After the PVS films were peeled from the substrates, they were pyrolyzed at various temperatures. Spectroscopic studies of the pyrolyzed films up to 1273 K suggested that carbosilane (Si–CH2–Si) structures are formed in the films at 473–673 K. The compositions of the amorphous films obtained at 1673 K were approximately SiC1.38O0.21 and SiC1.41O0.51, depending on the crosslinking conditions. The oxygen incorporated in the films was removed in the form of CO and SiO during further heating at 1673–1873 K. The compositions of the films were changed to approximately SiC1.25 and SiC1.26, respectively, at 2073 K. The films obtained at 1273 K did not show degradation during the oxidation at 1273–1673 K while a protective silica layer was formed on their surfaces.

scholarly journals Py–FTIR–GC/MS Analysis of Volatile Products of Automobile Shredder Residue Pyrolysis

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2734
Author(s):  
Bin Yang ◽  
Ming Chen
Keyword(s):  
Alternative Energy ◽  
Oil And Gas ◽  
Gaseous Product ◽  
Steam Gasification ◽  
Pyrolysis Oil ◽  
Shredder Residue ◽  
Gaseous Products ◽  
Automobile Shredder Residue ◽  
Ms Analysis ◽  
Volatile Products

Automobile shredder residue (ASR) pyrolysis produces solid, liquid, and gaseous products, particularly pyrolysis oil and gas, which could be used as renewable alternative energy resources. Due to the primary pyrolysis reaction not being complete, the yield of gaseous product is low. The pyrolysis tar comprises chemically unstable volatiles before condensing into liquid. Understanding the characteristics of volatile products will aid the design and improvement of subsequent processes. In order to accurately analyze the chemical characteristics and yields of volatile products of ASR primary pyrolysis, TG–FTIR–GC/MS analysis technology was used. According to the analysis results of the Gram–Schmidt profiles, the 3D stack plots, and GC/MS chromatograms of MixASR, ASR, and its main components, the major pyrolytic products of ASR included alkanes, olefins, and alcohols, and both had dense and indistinguishable weak peaks in the wavenumber range of 1900–1400 cm−1. Many of these products have unstable or weaker chemical bonds, such as =CH–, =CH2, –C=C–, and –C=CH2. Hence, more syngas with higher heating values can be obtained with further catalytic pyrolysis gasification, steam gasification, or higher temperature pyrolysis.

Sign in / Sign up

Export Citation Format

Share Document