Carbon Capture and Storage

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Details: Parent Category: Ideas Category: Natural Philosophy (Science) | Published: 25 October 2020 | Hits: 7342

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(Carbon Sequestration)

The following abbreviated paper is extracted from a longer, wider-ranging, paper with reference to energy policy in New South Wales and Australia, that was written in 2008.
This extract relates solely to CCS.
The original paper that is critical of some 2008 policy initiatives intended to mitigate carbon dioxide emissions can still be read in full on this website: Read here...

Carbon Sequestration Source: Wikimedia Commons

This illustration shows the two principal categories of Carbon Capture and Storage (Carbon Sequestration) - methods of disposing of carbon dioxide (CO₂₎ so that it doesn't enter the atmosphere. Sequestering it underground is known as Geosequestration while artificially accelerating natural biological absorption is Biosequestration.

There is a third alternative of deep ocean sequestration but this is highly problematic as one of the adverse impacts of rising CO₂ is ocean acidification - already impacting fisheries.

This paper examines both Geosequestration and Biosequestration and concludes that while Biosequestration has longer term potential Geosequestration on sufficient scale to make a difference is impractical.

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Travel

Central Australia

In June 2021 Wendy and I, with our friends Craig and Sonia (see: India; Taiwan; Japan; China; and several countries in South America) flew to Ayer's Rock where we hired a car for a short tour of Central Australia: Uluru - Alice Springs - Kings Canyon - back to Uluru. Around fifteen hundred kilometres - with side trips to the West MacDonnell Ranges; and so on.

Fiction, Recollections & News

The Pandemic turns Two

It's now past two years since SARS-CoV-2 (Covid-19) spread beyond China and became a pandemic.

From the outset, I've covered aspects of the pandemic on this website, beginning with Love in the time of Coronavirus back in March 2020, so the passing of the pandemic's second birthday seemed an appropriate time to review what we've learnt.

The positive news is that: Covid-19 has been far less deadly than the 1918-20 "Spanish Influenza' pandemic.

This relative success in limiting the number of deaths this time round is entirely due to modern science.

Opinions and Philosophy

The Fukushima Nuclear Crisis

Japan has 55 nuclear reactors at 19 sites. Two more are under construction and another twelve are in the advanced planning stage. Net Generating capacity is around 50 GW providing around 30% of the country's electricity (more here).

As a result of Japan’s largest earthquake in history on March 11 and subsequent tsunami all reactors shut down automatically as they were designed to do but cooling systems associated with two sites had been damaged.

Three reactor sites are adjacent to the earthquake epicentre and two were in the direct path of the tsunami. The Fukushima-Daiichi plant belonging to Tokyo Electric Power Company was particularly hard hit. It lost all grid connections, providing electricity, and its backup power plant was seriously damaged.

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