Compressed Air vs Co2
Atmosphere consists of various gases and particles, which we need for various purposes. Oxygen is one of the most crucial things on the earth which determines the survival of living things. Other than that carbon dioxide is also important for the survival due to its importance in photosynthesis. Except these natural phenomena, people have developed methods to make use of air to fulfill their various needs.
Compressed air is the air consisting of oxygen, nitrogen, carbon dioxide and all the other gases in the atmosphere. This air is at a higher pressure than the normal atmospheric pressure. It has high usages, mainly in producing energy. However, it is more expensive than the other energy producing resources like electricity, water and natural gas. Compressed air can be used as energy storage. When air is compressed a lot of heat is generated, and the air becomes warmer after the compression. Decompression of air requires heat. Therefore, the heat generated during the compression can be stored and used later during decompression. Further, compressed air is used for vehicles, railway braking systems, diesel engine cranking, cleaning electronic devices, air tools, etc. Compressed air tanks are expensive, and they need an advanced regulator to maintain a constant flow of the same-pressured air.
Carbon Dioxide (Co2)
Carbon dioxide is a molecule form from a carbon atom and two oxygen atoms. Each oxygen atom forms a double bond with carbon, and the molecular has a linear geometry. The molecular weight of carbon dioxide is 44 g mole-1. Carbon dioxide (CO2) is a colorless gas, and upon the dissolution in water, it forms carbonic acid. Carbon dioxide is denser than air. Concentration of carbon dioxide is 0.03% in the atmosphere. Through carbon cycle, the carbon dioxide amount in the atmosphere is balanced. Carbon dioxide can emit to the atmosphere through natural processes like respiration, volcano eruption, and through human activities like fossil fuel burning in vehicles and factories. Carbon dioxide is removed from the atmosphere in photosynthesis, and they can be deposited as carbonates in the long run. The human interference (fossil fuel burning, deforestation) has caused an imbalance in the carbon cycle, increasing CO2 gas level. Global environmental problems like acid rain, green house effect, and global warming have resulted because of that. Carbon dioxide is used to make soft drinks, in the bakery industry, as fire extinguishers, etc.
Carbon dioxide tanks are readily available, can easily buy, and cost less. Their maintenance is easy and doesn’t need an advanced regulator. Carbon dioxide can be stored as a liquid in a low pressure. However, they are unreliable at low temperatures.
What is the difference between compressed air and carbon dioxide (Co2)?
• The pressure of compressed air is much higher than the normal atomic pressure. Carbon dioxide is stored at a low pressure.
• Carbon dioxide is also a part of the compressed air where there are other gases too.
• Compressed air is more expensive than carbon dioxide.
• Carbon dioxide tanks are easy to find and doesn’t need advanced regulators like compressed air tanks do.