Modern industry strongly relies on the molecular analysis of fossil petroleum and petroleum-derived materials. In the context of a circular economy and carbon neutrality, the chemical description o...

Review on Evolved Gas Analysis Mass Spectrometry with Soft Photoionization for the Chemical Description of Petroleum, Petroleum-Derived Materials, and Alternative Feedstocks

In-situ catalytic upgrading of coal pyrolysis volatiles over red mud-supported nickel catalysts

Pyrolysis behaviors of model compounds with representative oxygen-containing functional groups in coal over calcium

In this work, the interaction between waste cypress sawdust (WCS) and coal liquefaction residue (CLR), a type of industrial solid waste, during co-pyrolysis was studied by thermogravimetry-mass spectrometry (TG-MS) and pyrolysis-gas chromatography mass spectrometry (Py-GC/MS). The gasification reaction characteristics of co-pyrolysis char were also evaluated. The results showed that both promoting and inhibiting effects existed in the co-pyrolysis process of WCS and CLR. When the pyrolysis temperature was less than 420 °C, the catalysis of minerals was conducive to the pyrolysis reaction. At higher temperatures, the polycondensation and carbonization produced by the interaction between the components inhibited the release of volatiles. The gasification reactivity of co-pyrolysis char was better than that of individual WCS and CLR chars. The synergistic effect was most obvious when the blending ratio of WCS to CLR was 3:1. In the gasification process of co-pyrolysis char, the WCS component with better reactivity preferentially reacted to form an abundant pore structure, which exposed more reactive sites and promoted the diffusion and mass transfer of gasification agent. Moreover, alkali and alkaline earth metal species in WCS and iron bearing minerals in CLR can catalyze the gasification reaction, contributing to the synergistic effect. Therefore, the addition of a suitable solid waste to biomass waste can improve the energy efficiency and simultaneously achieve solid waste utilization. • Co-thermochemical conversion of biomass and industrial solid waste were conducted. • The formation characteristics of tar and gas during co-pyrolysis were evaluated. • Release of volatiles during co-pyrolysis has both promoting and inhibiting effects. • Co-pyrolysis char has good gasification activity and shows obvious synergistic effect. 

Yanpeng Ban

Papers

Insights into effect of Ca(OH)2 on pyrolysis behaviors and products distribution of Hongshaquan coal

Pyrolysis behaviors of model compounds with representative oxygen-containing functional groups in coal over calcium

Study on pyrolysis behavior of long-chain n-alkanes with photoionization molecular-beam mass spectrometer

Effect of Fe2O3 on the pyrolysis of two demineralized coal using in-situ pyrolysis photoionization time-of-flight mass spectrometry