Investigation of Oxy-Fuel Combustion through Reactor Network and Residence Time Data

Oxy - fuel combustion of coal and biomass blends

The ignition temperature, burnout and NO emissions of blends of a semi-anthracite and a high-volatile bituminous coal with 10 and 20 wt.% of olive waste were studied under oxy-fuel combustion conditions in an entrained flow reactor (EFR). The results obtained under several oxy-fuel atmospheres (21%O2-79%CO2, 30%O2-70% CO2 and 35%O265%CO2) were compared with those attained in air. The results in...

Effect of oxy-fuel combustion with steam and biomass addition on coal burnout in an entrained flow reactor

The coal burnout of a semi-anthracite was studied under oxy-firing conditions in an entrained flow reactor. The results obtained under oxy-fuel conditions were compared with those attained in air. The replacement of CO2 by 10 and 20% of steam in the oxyfuel combustion atmospheres was also evaluated in order to study the wet recirculation of flue gas. The results showed a decrease on coal burnou...

Effects of nitrogen content in fuel on NOX emissions under oxy-fuel coal combustion

Oxy-fuel coal combustion with flue gas re-circulation is known to be one of the most promising methods for reducing CO2 emissions from coal combustion power plants. In the oxy-fuel system, the combustion atmosphere consists of only O2 separated from air and flue gas re-circulated from a stack. Therefore, the flue gas is dominated by CO2 without any nitrogen gas. The most attractive potential as...

Oxy-coal Combustion Studies

Investigation of spent caustic wastewater treatment through response surface methodology and artificial neural network in a photocatalytic reactor

In this research, photocatalytic degradation method has been introduced to clean up Spent Caustic of Olefin units of petrochemical industries (neutralized Spent Caustic by means of sulfuric acid) in the next step, adaptable method and effective parameters in the process performance have been investigated. Chemical oxygen demand (COD) was measured by the commercial zinc oxide that synthesized wi...