Abstract A 72-h ex situ hard coal gasification test in one large block of was carried out. The gasifying agent oxygen with a constant flow rate 4.5 m 3 /h. surroundings were simulated wet sand 11% moisture content. 2-cm interlayer siderite placed the horizontal cut block. As result this process, gas an average 12.46 /h produced. No direct influence on process observed; however, measurements CO ...

the steps taken in designing a loop reactor for bulk propylene polymerization are discussed. the roles played by several parameters like particle growth factor, catalyst activity and solid fraction on reactor volume at different operating conditions are investigated. at first, based on a fixed production capacity and specific rate of catalyst, reactor volume is determined. next, the length and ...

BACKGROUND Dilute acid pretreatment is a promising process technology for the deconstruction of low-lignin lignocellulosic biomass, capable of producing high yields of hemicellulosic sugars and enhancing enzymatic yields of glucose as part of a biomass-to-biofuels process. However, while it has been extensively studied, most work has historically been conducted at relatively high acid concentra...

BACKGROUND Lignocellulosic biomass is a renewable, naturally mass-produced form of stored solar energy. Thermochemical pretreatment processes have been developed to address the challenge of biomass recalcitrance, however the optimization, cost reduction, and scalability of these processes remain as obstacles to the adoption of biofuel production processes at the industrial scale. In this study,...

The fusion event in inertial fusion energy (IFE) reactors creates neutrons, photons and charged particles that can damage the chamber first walls. The Prometheus design study used a high-speed thin film of molten lead injected tangential to the wall to protect the upper endcap of the reactor chamber from damaging x-rays and target debris (1,2). To assure full chamber coverage, the film must rem...