Sunday, July 5, 2020

New efficient technology to capture and reuse CO2 from industrial emissions

Greenhouse gases play a vital role in trapping heat in our atmosphere, without which our planet would be a frozen wasteland. The concentration of greenhouse gases has been on a steady rise since the start of the Industrial Revolution in the late 18th century. 

Globally generation of electricity and heat accounts for almost 31% of greenhouse gas emissions. Carbon dioxide accounts for nearly 80% of such emissions. Conventional methods today use a high temperature of over 100 C to capture this CO2, which in itself consumes a significant amount of energy of about 3 to 4 Giga Joules per tonne of CO2. A group of researchers at Nagoya University, led by Assistant Professor Hiroshi Machida, made a breakthrough with their new H2 stripping regeneration technology that requires much less energy to capture carbon dioxide than conventional methods.  

Read Also: Record high atmospheric CO2 in spite of COVID-19 related shutdowns

Outline of process using “H2 stripping regeneration technology” Credit: Nagoya University

In conventional methods to synthesize fuels and other starting materials, pure CO2 is collected from the exhaust gases and mixed with hydrogen gas after the desorption cycle and before a reduction reaction can begin. In the new H2 stripping regeneration technology, hydrogen gas is added to the desorber’s bottom during the desorption cycle of CO2. As a result, the partial pressure of CO2 reduces and promotes regeneration and a lower regeneration temperature. 

The team also has developed a phase-separation solvent which combined with their H2 Regeneration Technology, can become the world’s highest energy-saving technology to capture CO2. This technology is expected to aid in the synthesis of industrial starting materials such as methane, methanol, gasoline, etc., from industrial exhaust gases promoting carbon recycling. Carbon recycling will help reduce global warming by re-using the CO2, which would otherwise be let into the atmosphere. 

Do you want to publish on Apple News, Google News, and more? Join our writing community, improve your writing skills, and be read by hundreds of thousands around the world!

Source: Phys.org

Comment Below

Featured Stories

Modest alcohol consumption can bring a healthier brain, new study says

The trend towards alcohol is fast growing at the time. It is one of the most popular...

Coronavirus-infected cells grow more branched extensions than normal, new studies reveal

A recent study published in the scientific journal Cell found that infection with the novel coronavirus can...

Latest Stories

Instagram new feature brings follow suggestions to stories

Instagram stories now suggest who to follow, as noted by a member of the News Landed writing...

World record $1 billion worth of ISIS-made drugs buested by Italy

With a plethora of happenings around the world, a drug bust has come into the highlight where...

A 3,000-year-old Egyptian bird mummy examined in Israel

At the Computerized Tomography (CT) Institute at Rambam Hospital in Haifa in the occupied Palestinian territories, there...

Related Stories

New clean and cheap way to convert carbon dioxide to useful materials

Carbon dioxide (CO2) gas is one of the essential constituents of our atmospheric air. It helps in...

Bioengineering to help future Mars Colonies and Earth’s Global Warming

Today many aerospace industries and nations are competing in the race for Mars. Some with a plan...