Comparison of pulverized coal combustion in air and in O2/CO2 mixtures by thermo-gravimetric analysis

Effects of microwave irradiation treatment on physicochemical characteristics of Chinese low-rank coals

“…The raw and upgraded coal samples (approximately 5 mg) were placed in an aluminum crucible and then heated at 25°C/min in a standard air flow at a rate of 60 mL/min. Ignition (T i ), burnout (T b ), peak (T max ) temperatures, as well as the maximum (k max ) and average (k mean ) combustion rates are the combustion characteristic parameters that reflect thermal behavior and burnout property during the combustion process and can be derived from the thermo-gravimetric and differential (TG-DTG) curves [14]. The index S, which is a comprehensive combustion parameter defined in Eq.…”

Thermodynamics and kinetics parameters of co-combustion between sewage sludge and water hyacinth in CO2/O2 atmosphere as biomass to solid biofuel

“…Water hyacinth presents attributes that are considered ideal for bio-fuel production. These attributes include a culture that is composed of natural growth vegetation, preferably "perennial" (with a fast production rate), that does not (Li et al, 2009). Notably, a large amount of nitrogen results in minimal radiation in exhaust gas but consumes a large amount of heat, which causes a loss of energy in the process of energy transfer.…”

SO2 effects on CO oxidation in a CO2 atmosphere, characteristic of oxy-fuel conditions

“…SO 2 is an important pollutant formed during oxy-fuel combustion processes, since it tends to accumulate in the furnace due to the flue gas recycle and the reduced volume of flue gas [2]. However, it is thought that oxy-fuel combustion has a higher potential for reduction of SO 2 emissions compared to air combustion processes [2][3][4][5][6][7]. This reduction is likely due to an increase in the retention of sulphur by ash and the formation of deposits in the furnace due to the recirculation of the flue gas.…”