One Question per Day (February 4, 2018)
Thread Content
For the coal used in fluidized-bed gasification, at 950°C, into how many categories is the coal’s reactivity to CO2, denoted as α, divided? α>80% is Grade I, α>60%~80% is Grade II
Answer: α>80% is Grade I, and α>60%~80% is Grade II
α>80% is Grade I, α>60%~80% is Grade II
At 950°C, reactivity increases sharply. As the degree of alteration increases, the chemical reactivity of coal toward CO2 first decreases and then increases, reaching a minimum at a certain point. Both the thickness of the vitrinite layer and the binding index show a negative correlation with reactivity. The activity-inertness ratio has a parabolic relationship with reactivity; when this ratio is around 1.9, the chemical reactivity of coal toward CO2 is low.
α>80% is Grade I, α>60%~80% is Grade II
α>80% is Grade I, α>60%~80% is Grade II
α>80% is Grade I, α>60%~80% is Grade II
For the coal used in fluidized-bed gasification, at 950°C, into how many categories is the coal’s reactivity to CO2, denoted as α, divided? . Answer: α>80% is Grade I, α>60%~80% is Grade II
α>80% is Grade I, α>60%~80% is Grade II