The ultimate analysis/elemental composition of algae biomass on a dry weight bas

Question

The ultimate analysis/elemental composition of algae biomass on a dry weight basis is provided below: For simplicity assume that algae biomass contained only carbon, nitrogen, oxygen, hydrogen, and ash. i. Calculate the higher heating value (ash-free basis). ii. Write a general chemical formula to represent this algae. iii. How CO_2 would have been captured for growing a ton (dry basis) this algal biomass assuming that CO_2 was the only carbon source? iiii. What would be CO_2 emission from the combustion of a ton (dry basis) using pure oxygen?

Explanation / Answer

i) higher heating value for this algae is 63.63 MJ
ii) general chemical formula: C17N3H2
iii)the amount CO2 captured for growing this algal matter will approximately be equal to half of the amount of algae (dry basis). therefore for growing a ton of this algal biomass (dry basis), ~ 2 tonnes of CO2 is captured.
iiii) total of 17 molecules of CO2 will be emitted on combustion with pure oxygen

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.