Global warming, new techniques to capture CO2 in the air – get rid of gas better, cheaper.
global warming – On 9 March, the BBC reports on the progress of carbon dioxide capture technology. One of the causes of climate change or global warming is the latest innovation that makes capturing global warming gases from the air more efficient and cheaper.
Such innovation is the work and collaboration of researchers from leading universities from the United States and China. Improving the Direct Air Capture (DAC) process for capturing global warming gases from the air to be lower cost and more efficient.
DAC technology is currently in use. By Climeworks, one of the main Swiss companies that have been at the forefront of the above technology over the years. It looks like a small factory with an exhaust fan to capture global warming gas molecules in the atmosphere.
Climeworks global warming gas capture plant
One of the Climbworks factories is in Iceland. After capturing carbon dioxide molecules, it is injected into the ground for storage. which will turn to stone permanently
Climbworks has a global warming gas capture business model. It has a number of large private customers such as Microsoft, Spotify and Stripe, but one of the biggest problems with DAC technology is its high cost.
The report says that Carbon dioxide, despite its high global warming potential, is very dilute in air at around 400 parts per million (ppm). DAC technology requires large machines to pump and separate’ r global warming gas out of the air
Professor Arup Sengupta, lead researcher at Lehigh University Pennsylvania State in the United States said that the new technique used is the chemical reaction of resins mixed with other chemicals. It was found to be able to trap such global warming gas as much as 3 times more than the previous technique.
Professor Sengupta said the technique developed by the research team was adapted from technology related to water filtration. In addition to greater capture efficiency and lower costs, It also includes the removal of global warming gas which is more convenient than ever.
Chemical Reaction Researchers Concepts (Science Advances)
One of the challenges with DAC technology is the elimination of global warming gases. or in underground and undersea rock layers But the new technique converts this gas into negatively charged bicarbonate type ions which can be safely stored in seawater.
Research team leader Continue to say that he wants to continue developing the above techniques. He believes that DAC will be one of the key technologies to prevent an increase in average global temperature.
Scientists have previously tried to avoid placing too much emphasis on new global warming technologies, including DACs, as it could lead to national governments initiating national clean energy reforms. And people are less aware of the threat of global warming.
But global average temperatures continue to rise, approaching the deadline set by the United Nations Framework Convention on Climate Change (UNFCCC) agreement in Paris, France. or the 2016 Paris Agreement
Such pressure has made DAC technology the most practical way scientists agree to reduce carbon dioxide to prevent the threat of global warming.
Professor Klaus Lackner, one of the leading scientists in the development of DAC technology, said he believed in the above technology. because it will play a greater role in the future Including having lower costs too
Similarly, Professor Sengupta believes that the new technique developed by the research team can reduce the cost of DAC to around 100 US dollars or around 3,500 baht per 1 ton of heavy gas capture. Available at the website of the journal Science Advances.
