2. Name: Faiza Ehsan
M.Sc 4th Semester
University of Agriculture Faisalabad

3. from WASTE to VALUE

4. A Greenhouse Gas

5. The most
highly
oxidized
molecule..
O
O
C

7. Where
Humanity’s CO2
come from....

8. Volcanic
eruptions..

11. Deforestation
Land use change

12. Industrial
processes...

13. Where Humanity’s
CO2 goes..

14. Plants
Oceans

16. ‘‘If humanity wishes to preserve a
planet similar to that on which
civilization developed and to which
life on Earth is adapted,
paleoclimate evidence and ongoing
climate change suggest that CO2
will need to be reduced from
current levels to at most 350 ppm.”
Dr. James Hansen

20. World Glacier Monitoring Service

22. Sea level rise..

23. Impact on Animals..

26. Need to reduce CO2 levels
in the atmosphere!!

27. Turning CO2 to
useful compounds

30. 818.5 kJ/mol

31. CO2 to Fuels

33. Solar
Energy
Wind
Energy
Hydro
electric
Sources of Energy

36. CO2(g) + 2H+
(aq) + 2e- CO(g) + H2O(l)
CO2(g) + 8H+
(aq) + 8e- CH4(g) + 2H2O(l)
2CO2(g) +12H+
(aq)+ 12e- C2H4(g) + 4H2O(l)
2CO2(g) + 6H+
(aq)+ 6e- CH3OH(l) + H2O(l)
CO2(g) + 2H+
(aq) + 2e- HCOOH(aq)
2H+ + 2e- H2(g)

38. Industrial Utilization of CO2
MeOH
inorganic carbonates
urea
salicylic acid
ethylene carbonate
methanol
e.g., Na2CO3 and BaCO3

40. Polyethylene carbonate
Polyurethane
Polypropylene
carbonate

42. CO2 to Building
materials

43. Cement
&
Concrete
Brent Constanz

46. Can recycling of
CO2 solve the raw
material and climate
problems of
humanity?

47. THANK
YOU

48. Any Confusion..?