We have applied the method to carbon formation in C02 reforming of methane over eight transition metals, starting with a list of 164 elementary steps and published UBI-QEP calculations of their activation energies and using the MECHEM program for combinatorial pathway generation. The predicted coking pattern Fe > Ni > Ru > Rh, Ir, Pd > Cu, Pt is consistent with experimental results from the lit...

Lignin is the most difficult to be converted and most easy coking component in biomass catalytic pyrolysis to high-value liquid fuels and chemicals. Catalytic conversion of guaiacol as a lignin model compound was conducted in a fixed-bed reactor over ZSM-5 to investigate its conversion and coking behaviors. The effects of temperature, weight hourly space velocity (WHSV) and partial pressure on ...

The physical and chemical properties of raw bio-oil, two oxidized bio-oils, and hydrotreated bio-oil were compared before and after catalytic hydrodeoxygenation using sulfided CoMo/γ-Al2O3 catalyst. Following continuous hydrodeoxygenation, the organic liquid products from treated bio-oils and raw bio-oil were compared for higher heating value, oxygen content, water content, and viscosity. In ad...

Thermal related processes are widely recognized as the main sources of formation and emission of polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs). It is well known that, carbonization of coal in coke production involves many thermal reactions at high-temperature. However, there are still no strong evidences to identify coking processes as source of ...

Polypropylene (PP) makes up a large share of our plastic waste. We investigated the conversion PP over industrial Fluid Catalytic Cracking catalyst (FCC-cat) used to produce gasoline from crude oil fractions. studied transport limitations arising larger size polymers compared oil-based feedstock by testing components this separately. Infrared spectroscopy and confocal fluorescence microscopy re...

The feasibility of regenerative cooling technology in scramjet engines has been verified, while the heat transfer behavior involved process needs further study. This paper expounds on necessity coupled heat-transfer analysis and summarizes its research progress. results show that effect pyrolysis channel depends flux coking rate, coupling relationship between combustion is closely related to fu...