To realize large-percentage biomass co-firing with coal in existing coal-fired boilers, the combustion behavior of biomass is expected to be similar or comparable to that of coal. When co-firing with coal, biomass is not necessarily to be ground as fine as the dedicated coal particles, because of its higher reactivity. With the objective of achieving promising performance of co-firing with dedi...

The emissions of carbon dioxide and nitrogen and sulphur oxides for electricity generation with coal and biomass co-firing are investigated and the furnace gas temperature assessed. The study uses simulation and considers fuel combinations based on two coals (bituminous coal, lignite) and four types of biomass (rice husk, sawdust, chicken litter, refused derived fuel). With increasing biomass, ...

the reduction of fe2o3 powder at the top layer by the volatiles from high volatile (hv) bituminous coalat the bottom layer of a multilayer powder geometry including a separating alumina layer was studied.the simultaneous effects of the alumina layer thickness, time, temperature and the weight of coal onthe amount of reduction and coal devolatilization were studied by implementing a rotatable ce...

Abstract: A greenhouse study was conducted to assess growth and elemental uptake by canola (Brassica napus) on acidic soils amended with four chemically different unweathered fly ashes. The ashes were incorporated into the top 10 cm of 1 m long intact soil cores at the rates of 0, 12, 36 and 108 Mg ha. The objective of this study was to characterise growth responses and distribution of B, Mo an...

Controlled bench scale pulverized coal combustion studies were performed, demonstrating that inorganic particles play a critical role as carriers of organic species. Two commonly-used aerosol mass spectrometry techniques were applied to characterize fine particle formation during coal combustion. It was found that the organic species in coal combustion aerosols have mass spectra similar to thos...

The present work is a review of the substantial effort that has been made to measure and understand the effects of corrosion with respect to the properties, performance, and durability of various forms of silicon carbide and silicon nitride. The review encompasses corrosion in diverse environments, usually at temperatures of 1000 °C or higher. The environments include dry and moist oxygen, mixt...

The objective of this work was to assess the use biomass fly ash (BFA) as cement replacement material or an alkalinity source in high volume mortar and concrete. Mortar formulations were prepared with different types replacement: from thermal power plants, BFA, a blend two pozzolans, small amounts BFA or/and hydrated lime (HL). tested both fresh hardened state. by ashes led decrease mechanical ...

To evaluate the utility potential of pretreated biomass in blast furnaces, the fuel properties, including fuel ratio, ignition temperature, and burnout, of bamboo, oil palm, rice husk, sugarcane bagasse, and Madagascar almond undergoing torrefaction and carbonization in a rotary furnace are analyzed and compared to those of a high-volatile coal and a low-volatile one used in pulverized coal inj...

Recently, prices of strategic minerals and rare earth elements have been rising dramatically due to global supply shortages and increasing demands. These metals are integral components of advanced technologies, such as, cell-phones, wind turbines, permanent magnets, and semi-conductors. The relative scarcity of these valuable elements has prompted many companies to search for new mineral source...