Zhengqi Li

TL;DR: It was found that the three-pseudocomponent model with n- order kinetics was more accurate than the model with first-order kinetics at most cases to describe the pyrolysis of the hemicellulose.

TL;DR: In this paper, a comprehensive review of investigations into the gas/particle flow, combustion and NOx emission characteristics within various types of down-fired boilers is presented, and a series of suggestions for organizing reasonable combustion in downfired furnaces have been provided so as to achieve timely ignition, symmetric and stable combustion, weak slagging, good burnout, and asymmetric combustion.

TL;DR: A new technique combining high boiler efficiency and low-NO(x) emissions was employed in a 300MWe down-fired boiler as an economical means to reduce NO(x), without increasing the levels of unburnt carbon in fly ash and reducing boiler thermal efficiency.

TL;DR: The thermal decomposition of coals and biomass was studied using thermogravimetric analysis with the distributed activation energy model and Datong bituminous coal, Jindongnan lean coal and corn-stalk skins had approximate Gaussian distribution functions with linear ln k(0) to E relationships.

TL;DR: The combustion of corn straw occurred in two stages, ignition front propagation and char oxidation, and the average burning rate increased with an increase in the primary air flow until a critical point was reached, beyond which a further decrease in thePrimary air flow resulted in a decreased burning rate.