Articles: Understanding
Gasification and Pyrolysis
"A great way to learn more about a
subject is to read information from a number of
sources".
You can learn a lot by reading
around a subject like gasification and pyrolysis, so we
will scour the web for you and we will publish the best
articles written about Advanced Thermal
Treatment.
Contents
Here are the first articles that we
have found. Click on the title to read each
article.
Plasma gasification is an excellent way of recycling garbage. The facilities are large and expensive but the by-products from the process are carbon dioxide, nitrogen, water vapor and inert slag making it very environmentally friendly.
Gasification plant technology is at the forefront of developing alternatives for conventional furnaces. Pyrolysis is a similar renewable energy technology. All use biomass and usually use waste biomass. Continue...
IGCC - Integrated Gasification Combined Cycle technology - the big new hope in clean and sustainable solid carbonaceous fuel burning to replace Coal Fired Power Stations - revealed in this article.
The Pyrolysis of Automotive Shredder Residue: Four pyrolysis processtechnoogies are reported to be semi or fully commercial, and clearly specify that they can handle ASR as a feed.
Understand the difference between gasification and pyrolysis and incineration. The differences are explained.
What is Pyrolysis?
Pyrolysis is a process which is designed to produce a char
which can be processed into a liquid with a heat value in the
range of 50-80% of mineral fuel oil.
The oil which pyrolysis produces a is called
bio-oil, which is the basis of several processes for the
development of fuels, chemicals and materials. There are
various concepts around which pyrolysis is being devemoped. One
concept is to use the residual fractions of the oil for
hydrogen production after co-products have been separated
making pyrolysis a possible component of a future hydrogen fuel
based economy.
Pyrolysis produces energy fuels with high fuel-to-feed
ratios, making it the most efficient process for biomass
conversion, and the method most capable of competing and
eventually replacing non-renewable fossil fuel resources.
Video below Shows Pyrolysis of Scrap
Tyres
So pyrolysis produces bio-oil, char, and synthetic gas
from biomass. One company has developed what it
calls "Fast pyrolysis" which operates at higher
temperatures and over shorter time periods than other pyrolysis
processes. They say that this converts more of the biomass into
gas and oil, and less into charcoal. Fast pyrolysis is aimed at
producing liquids for the direct application of heat and power
in bio-refineries with typical applications of pre-conditioning
of gasifier feedstock –producing liquids and gases as well as
char and even slurry.
However, we are told that the fast pyrolysis of
non-woody feedstocks can lead to the production of highly
reactive liquids and can be rich in high tars with some product
sbituminous in character and solid at room temperature leading
to storage and processing issues.
Carbonscape would not initially be producing charcoal for
biochar, but for industrial uses of charcoal, as a substitute
for coal, because prices are rising internationally. Carbon
credits will be earned for the treatment of wood waste into
charcoal. Carbon dioxide produced in the biomass gasification
step is constantly recycled into the reactor, thus eliminating
the release of carbon dioxide into the atmosphere. It must be
noted, however, that the paper sets forth only a conceptual
framework.
Biochar is charcoal formed by low temperature pyrolysis.
Higher temperature pyrolysis produces a more traditional
charcoal. Biochar is charcoal formed by low temperature
pyrolysis. Medium temperature pyrolysis produces a more
traditional charcoal, high temperature pyrolysis produces
activated charcoal.
Video Below Shows a Demonstration of Making
Biochar
Video below explains how Biochar could be both beneficial to
soil quality and a safe method of Carbon Capture.