Studies on the synergistic effect between corn straw and Canadian oil sands bitumen during the co-pyrolysis process.

To investigate the potential synergistic effect, the co-pyrolysis of corn straw (CS) and Canadian oil sands bitumen (CA-OB) was carried out in this work. Thermogravimetric and differential thermogravimetric curves of CA-OB, CS and their blends were recorded using a thermogravimetric analyser. The main co-pyrolysis regions of the CS/CA-OB blends partially overlapped with the individual pyrolysis curves of CS and CA-OB, and the apparent weight loss was detected between 250 °C and 500 °C.

Effect of High Calcium and High Iron Coal on Ash Fusion Characteristics of Petroleum Coke during Cogasification.

Entrained flow gasification provides a more efficient utilization method for high-sulfur petroleum coke. The operation temperature of the entrained flow gasifier must be above the ash fusion temperature (AFT) of petroleum coke due to the liquid slag discharge. In this work, petroleum coke was blended with high-calcium coal and high-iron coal, respectively, under a reducing atmosphere, and the variations in AFTs were recorded by an ash fusion temperature analyzer.

Insight into the Effects of Drying Methods on Lanzhou Lily Rehydration.

This study investigated the effects of drying methods (hot air drying (HAD), microwave vacuum drying (MVD), and vacuum freeze drying (VFD)) on the rehydration performance (RP) of dried Lanzhou lily scales (LLS). Rehydration rate and water migration showed that MVD had the best RP, followed by VFD, while HAD had the worst. The results of additional morphology observation using scanning electron microscopy (SEM) and micro X-ray computed tomography (CT) imaging showed that both MVD and VFD created more channels in more porous structures, which facilitated their better RP than that by HAD.