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GTL Process Carbon Capture Plant
Post Combustion Carbon Capture Plant for All Fossil Fuel Fires on Site
New to Carbon Capture? Excellent Carbon Capture Overview
 (16 page pdf)

 

 

 

          

A recently patented Carbon Capture Plant Design claiming improved technology.

 

Flue gas carbon capture equipment in greater detail.

Above from Siemens paper:  Carbon Capture - Amine Post Combustion.pdf

 

No getting around it - capturing CO2 from an exhaust stream, purifying it and compressing it to over 1,500 psi
to make it liquid so it can be injected into the ground increases a power plant's initial and fuel cost perhaps 25%.
And then, you still only capture about 80% to 90% of the power plant's CO2. This is why some people think the
Oxyfuel and Allam cycles ( https://www.netpower.com/ ) are more desirable and still others prefer to just
avoid the capital expense (capex) and operating expense (opex) of Carbon Capture and go with
modern small nuclear when it becomes available in 10 to 15 years.
However, nuclear's capex may not outweigh nuclear's opex advantage.

 

 

 

Some of Southwest Michigan's unneeded coal power plants (think B.C. Cobb) are sitting directly above some of the world's best CO2 sequestration strata.
All the plant needs to do to dispose of CO2 is to drill straight down several thousand feet to make a CO2 disposal well. Easy, quick, and cheap. No long CO2 disposal pipelines.
https://vimeo.com/160973195 

       

Known global CO2 disposal locations.

Crude Oil as a Gas Turbine fuel
(Extracted from Siemens Industrial Turbomachinery Ltd. pdf document "Gas Turbine Fuel and Fuel Quality Requirements for use in Industrial Gas Turbine Combustion".)

Viscosity is one of the key parameters used when evaluating liquid fuels for use in industrial gas turbines and generallyshould be <10cst (most regular diesel fuels <7.5cst @ 40degC).

There are cases where neither diesel nor gaseous fuels are available and the only "fuel" is crude oil. This creates challenges that have to be handled through fuel pre-treatment and fuel injection system functionality {11}. Firstly, heating the fuel reduces the viscosity, but noting the limitations:

First is 100C, at which water boils off (all liquid fuels contain a small amount of water) causing cavitations in fuel pumps

Increasing fuel oil supply pressure allows the heating to be extended beyond 100C, but is limited by the temperature limits within the fuel delivery system

Further heating can result in fuel cracking and coking in the fuel system and burners depending on the constituents within the crude oil

Crude oils need to be treated in order to meet industrial gas turbine limits on metallic and other contaminants in the fuel. Crude oil often contains high amounts of alkali metals (Na, K) and heavy metals (V, Ni, etc) which if introduced into the combustion system can result in accelerated deposit formation and high temperature corrosion in gas turbine hot gas path components. Major corrosive constituents include Vanadium pentoxide (V2O5), sodium sulphate (Na2SO4) and aggressive low melting forms in the Na2SO4 V2O5 and Na2O-V2O5 systems. Determination of the ash sticking temperature is usually a good feature to use, and should be >900degC if sticking to the blade is to be avoided. Water and sediment can be removed, or reduced, by filtration and centrifuge separation. This is the same for any liquid fuel, and prevents the formation of corrosive elements and bacterial growth, a pre-cursor to fuel degradation. Removal of the water also reduces the levels of water-soluble contaminants such as the alkali metals sodium and potassium. Vanadium and other heavy metals are oil-soluble though, and can only be treated through chemical dosing so that combustion creates high melting temperature compounds.

Crude oils can also contain more volatile components with a low flash point therefore the need to include explosion proof equipment is often required.

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Footnotes & Links

This facility is clearly defined by the U.S. Nuclear Regulatory Commission, local and national building and electrical codes, and supplemented by constraints from the relevant equipment manufacturers.

This website is still a draft. The candidate document's footnote numbers go with a private database. Copy the document's title and submit it to Google. The document may still be posted on the Internet.

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Footnotes & Links

The unneeded power plant your author has in mind is a small single unit coal power plant located over a prime Carbon Capture disposal strata in Michigan.

 

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This website is still a draft. The candidate document's footnote numbers go with a private database. Copy the document's title and submit it to Google. The document may still be posted on the Internet.

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