Gasification of polymers

Stoliarov, S. I. and Walters R. N. (2008) Determination of the heats of gasification of polymers using differential scanning calorimetry, Polymer Degradation and Stability 93(2)422-427. 

The maximum total gas yield reaches 75% at 700°C. In comparison with pyrolysis, thermal gasification of polymers is also a snitable process becanse its products are of simpler composition and have a narrower range of molecnlar weights. 

Table 11.4 Surface Re-radiation Loss and Heat of Gasification of Polymers ...

TABLE 53.2. Surface re-radiation ioss and heat of gasification of polymers. ... 

Table 3. Latent Heat of Gasification, Char Yield, and Enthalpy of Gasification of Polymers Polymer Lg, kJ/g fi, gig hg, kJ/g...

Table 3 Surface re-radiation loss q"r and heat of gasification (L) of polymers...

Consequently the mass transfer rate during diffusion combustion of polymers is determined by the ratio of the heat of combustion to the effective enthalpy of polymer gasffication. The lower the combustion heat and the higher the polymer gasification enthalpy or, in other words the more heat resistant the polymer, the lower is the B value. For polymer combustion in air the B value of e.g., PMMA varies between... 

Flaming combustion of polymeric materials inevitably involves liberation of gaseous fuels. No wonder, therefore, that the interest in the thermal properties of polymers and the mechanisms and kinetics of polymer decomposition and gasification has been high. 

Recently, we have synthesized microporous carbons [6] and Pt particles supported on microporous carbon [7] by carbonization of cationic surfactant-anionic resorcinol/formaldehyde (RF) composites. The porous structure produced by decomposition of the surfactant plays an important role for the gasification of the RF polymer at higher temperatures. However, the average pore size of the microporous carbons obtained with this method is smaller than... 

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