The purpose of this study is to identify the deactivation mechanism(s) that occurs during aromatization dilute ethylene at 500 °C on Zn/H-MFI catalyst. More than 15 catalysts, with a Zn/H+ molar ratio ranging from 0 (H-ZSM5) 1.8 (Zn/H-ZSM5), were prepared by wet impregnation. Deactivation does not result Zn sublimation, but coking. function and coke deposition can be modelled simple exponential...

CO2 (dry) reforming of methane (DRM) is a significant and useful reaction from the standpoint effective utilization conversion two main greenhouse gases to value-added synthesis gas. To achieve highly efficient stable DRM reaction, Silicalite-1-encapsulated ultrafine Ni nanoparticle catalyst (Ni@S-1)by using phyllosilicate (Ni-PS) as precursor was newly developed. This Ni@S-1 exhibited negligib...

Mathematical model for a pilot scale iron ore pellet induration furnace has been developed which considers the process of induration including the reactions of limestone, magnetite and coke. The differential equations of energy, mass and momentum are solved simultaneously. The profiles of temperature, pressure and concentration are obtained. Performing separate experiments on sub processes; dry...

Abstract Energy and environmental issues have triggered the search for new sources of green energy alternatives in recent years. Biofuel production from renewable is widely considered one most sustainable economic sustainability. Microalgae are currently being promoted as promising liquid biofuel feedstocks due to their rapid growth, high lipid capacity, carbon–neutral cycle. In this study, who...

Coke-oven workers are exposed to high concentrations of coke-oven emissions, which are comprised mainly of polycyclic aromatic hydrocarbons. We conducted a pilot study to determine the time changes in urinary 1-hydroxypyrene (1-OHP) concentrations, as a metabolite of pyrene, in coke-oven workers after exposure to a benzene-soluble fraction (BSF) of total particulates. Thirteen subjects, includi...