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CO2 effective utilization

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bharathbalji

This document discusses various applications of carbon capture and storage (CCS) including fire suppression, conversion to plastics, enhanced fuel recovery, and use in food/products. It describes how CO2 works in fire suppression by displacing oxygen below combustion levels. It also discusses approaches to converting CO2 into ethylene, the main component in polyethylene plastic, as well as converting it into hydrocarbon fuels and methanol using photocatalysis or thermal processes. Finally, it outlines common uses of CO2 in the food industry such as carbonating beverages and extending the shelf life of packaged foods.

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Carbon Capture and Storage G.Bharath Balji M.Tech IInd Year Environmental Science & Technology
Topics to be covered ? Fire Suppression ? Plastics ? Enhanced fuel recovery ? Food/products CO2 Conversion, Utilization and Storage
Fire Suppression What is CO2 ? CO2 is naturally Occuring Gas ? Ozone depletion potential ? Global warming potential ? CO2 is colourless and odourless ? CO2 is stored as a liquid in a cylinder
How does CO2 work ? CO2 is discharged directly on to the surface and displaces the oxygen. ? CO2 reduces the oxygen level to below that which can support combustion ? CO2 creates a cooling effect on the fire and surrounding areas ? The minimum CO2 fire extinguishing concentration of 34%
Fire Extinguisher ? CO2 is suitable for surface & deep seated class ¡®A¡¯ fires ? CO2 is suitable for flammable liquids & gas applications ? CO2 is suitable for live electrical equipment applications
Conversion to Plastics ? It's clear that there's too much carbon dioxide in Earth's atmosphere, heavily contributing to a warming planet ? Plastic itself isn't the most environmentally friendly of materials, but not only would it mean that CO2 gets converted into something useful, it could also reduce the need to produce plastics out of fossil fuels, giving us a better chance of hitting targets for limiting climate change. ? The new approach is to convert carbon dioxide into ethylene the raw material used to make the most commonly used plastic, polyethylene.
Plastics ? The researchers used a technique involving X- ray spectroscopy and computer modelling techniques analyzing matter with electromagnetic radiation to identify their key catalyst. ? The catalyst is necessary to power a carbon dioxide reduction reaction, While many metals can act as catalysts, we already know that copper is the only one that can produce ethylene. ? Now the research work is going out that how to control the reaction so that ethylene production was maximized, while waste products such as methane were kept to a minimum.
Fuel Recovery HYDROCARBON FUEL FROM CO2 THROUGH PHOTOCATALYSIS ? Direct conversion of CO2 and water into hydrocarbon fuels using sunlight ? The CO2 is collected and passed through a photo catalytic sieve; in the sieve the CO2 is exposed to sunlight and with the addition of water it is converted back into a hydrocarbon fuel. ? the photo catalytic reduction of CO2 with H2 and or H2O is done with nitrogen doped titania as catalyst
Photo reduction of CO2
CONVERSION OF CO2 INTO METHANOL ? methanol (CH30H) can be turned into a form of bio-diesel fuel and burned in engines. ? This technique uses a thermal process to coat copper oxide (CuO) nanowires with another form of copper oxide (Cu2O) and submerging them in a solution rich in carbon dioxide
? The CuO-Cu2O hybrid nano rod arrays are then subjected to sunlight to make a chemical reaction and produce liquid methanol. ? The experiments generate methanol with 95percent efficiency
Food / Products ? Carbon dioxide is a food additive used as a acidity regulator in the food industry ? Carbon dioxide is used to produce carbonated soft drinks and soda water ? The carbonation in beer and sparkling wine came about through natural fermentation, but many manufacturers carbonate these drinks with carbon dioxide recovered from the fermentation process ? Carbon dioxide in the form of dry ice is often used in the wine making process to cool down bunches of grapes quickly
? Co2 is widely used in food processing industries. ? In food packaging industries it is used to extend the shelf life of salads,fresh meat and poultry ? Carbon dioxide also inhibits bacteria growth and lowers the pH of preserved food.
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CO2 effective utilization

  • 1. Carbon Capture and Storage G.Bharath Balji M.Tech IInd Year Environmental Science & Technology
  • 2. Topics to be covered ? Fire Suppression ? Plastics ? Enhanced fuel recovery ? Food/products CO2 Conversion, Utilization and Storage
  • 3. Fire Suppression What is CO2 ? CO2 is naturally Occuring Gas ? Ozone depletion potential ? Global warming potential ? CO2 is colourless and odourless ? CO2 is stored as a liquid in a cylinder
  • 4. How does CO2 work ? CO2 is discharged directly on to the surface and displaces the oxygen. ? CO2 reduces the oxygen level to below that which can support combustion ? CO2 creates a cooling effect on the fire and surrounding areas ? The minimum CO2 fire extinguishing concentration of 34%
  • 5. Fire Extinguisher ? CO2 is suitable for surface & deep seated class ¡®A¡¯ fires ? CO2 is suitable for flammable liquids & gas applications ? CO2 is suitable for live electrical equipment applications
  • 6. Conversion to Plastics ? It's clear that there's too much carbon dioxide in Earth's atmosphere, heavily contributing to a warming planet ? Plastic itself isn't the most environmentally friendly of materials, but not only would it mean that CO2 gets converted into something useful, it could also reduce the need to produce plastics out of fossil fuels, giving us a better chance of hitting targets for limiting climate change. ? The new approach is to convert carbon dioxide into ethylene the raw material used to make the most commonly used plastic, polyethylene.
  • 7. Plastics ? The researchers used a technique involving X- ray spectroscopy and computer modelling techniques analyzing matter with electromagnetic radiation to identify their key catalyst. ? The catalyst is necessary to power a carbon dioxide reduction reaction, While many metals can act as catalysts, we already know that copper is the only one that can produce ethylene. ? Now the research work is going out that how to control the reaction so that ethylene production was maximized, while waste products such as methane were kept to a minimum.
  • 8. Fuel Recovery HYDROCARBON FUEL FROM CO2 THROUGH PHOTOCATALYSIS ? Direct conversion of CO2 and water into hydrocarbon fuels using sunlight ? The CO2 is collected and passed through a photo catalytic sieve; in the sieve the CO2 is exposed to sunlight and with the addition of water it is converted back into a hydrocarbon fuel. ? the photo catalytic reduction of CO2 with H2 and or H2O is done with nitrogen doped titania as catalyst
  • 10. CONVERSION OF CO2 INTO METHANOL ? methanol (CH30H) can be turned into a form of bio-diesel fuel and burned in engines. ? This technique uses a thermal process to coat copper oxide (CuO) nanowires with another form of copper oxide (Cu2O) and submerging them in a solution rich in carbon dioxide
  • 11. ? The CuO-Cu2O hybrid nano rod arrays are then subjected to sunlight to make a chemical reaction and produce liquid methanol. ? The experiments generate methanol with 95percent efficiency
  • 12. Food / Products ? Carbon dioxide is a food additive used as a acidity regulator in the food industry ? Carbon dioxide is used to produce carbonated soft drinks and soda water ? The carbonation in beer and sparkling wine came about through natural fermentation, but many manufacturers carbonate these drinks with carbon dioxide recovered from the fermentation process ? Carbon dioxide in the form of dry ice is often used in the wine making process to cool down bunches of grapes quickly
  • 13. ? Co2 is widely used in food processing industries. ? In food packaging industries it is used to extend the shelf life of salads,fresh meat and poultry ? Carbon dioxide also inhibits bacteria growth and lowers the pH of preserved food.

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