437 / 2018-09-01 16:59:10

Some Recent Advances in Research on Particulate Matter Emission during Biomass and its-Derived Biofuels Combustion

全体主题 > 生物质发电

Biomass is an important part of the global response to the challenges of energy security, greenhouse gas emissions and climate change, although it is not a complete solution. The unique features of biomass as a fuel, including widely distributed nature, low energy density and seasonality of supply, dictate that biomass collection, transport and storage are expensive hence necessary pretreatment may be required before subsequent transport and applications. In the transition to a sustainable future, biomass, and its-derived biofuels from biomass fast pyrolysis (e.g. bio-oil, biochar, and biofuel mixtures), are promising substitutions for coal in stationary combustion applications. This talk summarizes some recent research progresses in emission of particulate matter with aerodynamic diameter > 10 µm (PM10) during the combustion of these fuels. It briefly covers some important aspects including 1) design of unique sample matrix and innovative reactor systems for probing mechanisms responsible for PM10 emissions; 2) critical considerations in PM10 sampling; 3) roles of reactions between inorganics and reactor-wall in PM10 measurement; 4) contributions of fuel inorganic matter with various occurrence forms to PM10 emission; 5) importance of ash cenosphere fragmentation to PM10 emission; 6) contributions of separate combustion of char and in situ volatiles to PM10 emission; 7) roles of steam in PM10 emission during oxyfuel combustion; 8) synergies in PM10 emission during fuel mixture combustion; and 9) role of volatile-char interactions in PM10 emission.