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A blend of waste cooking oil (WCO, 10–30wt%) and dodecane was co-hydroprocessed over a supported CoMo sulfided (CoMoS) catalyst in a fixed bed reactor. Uniform design (UD) method, where small number of experimental points randomly distributed over an s-dimensional unit cube, was used for the first time to optimize WCO co-hydroprocessing parameters and to investigate the reaction routes. In only four...
The catalytic hydrogasification of coal char was investigated in a high-pressure fixed-bed tube reactor using CaO, CaCO3, Na2CO3, and K2CO3 as catalysts. Experimental results showed that the char reactivity could be greatly improved with the addition of catalysts. Analysis of char structural evolution was performed to further explore the catalytic mechanism by employing Raman spectroscopy and scanning...
In the present study, the hydrogasification of chars produced from different rank coals was carried out in temperature up to 1123K and in the pressure of 5MPa using a high pressure fixed bed reactor. The experimental results show that the char hydrogasification process can be divided into two stages: an initial stage with sharp decline in hydrogasification rate and a stable stage with slower decline...
Reducing the carbon footprint or GHG emissions is a major challenge during the production and processing of Canadian oil sands bitumen for clean transportation fuels. Co-processing bitumen derived feeds and biomass may provide an alternative solution since the level of GHG emissions for producing renewable biofuels is considered significantly lower than that for fossil fuels. In many developed countries,...
Calcium looping cycle is considered as one of the most promising post combustion CO 2 capture technologies that can curb CO 2 emissions from power plants fired with fossil fuel. However the presence of SO 2 and steam in the flue gas leads to the sulfation of CaO-based sorbents, and thus reduces the sorbents’ capacity for CO 2 capture. In this study, the effect of sorbent...
The reaction of three Chinese coals with Fe 2 O 3 oxygen carrier (OC) was performed in a thermogravimetric analyzer (TGA), with special focuses on the effects of varying heating rate and coal rank on reactivity. Fourier transform infrared spectroscopy (FTIR) was used to in situ detect the emitted gases from TGA. Field scanning electron microscopy/energy-dispersive X-ray spectrometry...
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