Advanced High-Temperature, High-Pressure Transport Reactor Gasification Page: 61 of 147
View a full description of this report.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
XD
C
.-r
0100
90
80
70
60
50
4030
20
10
010
100
. Raw Indian SP - Air
* Raw Indian SP - 02 Enriched
A Washed Indian SP - Air
* Washed Indian SP - 02
E Raw Indian FV - Air
O Raw Indian FV - 02 Enriched
A Washed Indian FV - Air
o Washed Indian FV - 02
+ Silica Sand
v Raw Indian CoalParticle Size, pm
Figure 11. Particle-size distribution of high-ash Indian coal samples from a transport reactor.
were both below the filter particle-size distribution typically achieved with Wyodak subbituminous
coal. The smaller particle-size distribution possibly could be due to the higher loadings of more
dense ash particles into the cyclones, resulting in a better cyclone efficiency even for the less dense
carbon particles in the circulating bed material. Outlet dust loadings were maintained at 1 ppmw or
below, indicating good performance from the iron aluminide candle filters.
4.6 Measurement of Mercury in TRDU Fuel Gas
One goal of the transport reactor project has been to demonstrate the acceptable performance
of mercury continuous emission monitors (CEMs) to measure mercury in actual coal-derived fuel
gas. The EERC is attempting to evaluate the form of mercury (ionic, elemental, or
particulate-bound) on the TRDU gasifier. Testing has involved both wet-chemistry methods and
mercury CEMs. For the mercury CEMs, three different pretreatment systems could be used to
determine which system gives the best results. The first uses a basic stannous chloride solution to
convert all mercury to the elemental form and remove any gases such as HCl that may result in
interferences. The second CEM uses an acid stannous chloride solution for conversion but has a
heated alkali trap to remove interfering gases. The third system that could be used is a thermal
system with dilution. Sampling on the TRDU facility has been done at one location on the outlet of
the hot-gas filter system. The pressure at this point is approximately 116 psig. Wet-chemistry
sampling has consisted of a modified EPA Method 29 multimetal trains to look for mercury in each
sample. A detailed description of this method can be found at EPA's Web page:
www.epa.gov/ttn/emc. In addition, three different types of mercury CEMs have been used to
measure mercury continuously at this sampling location. The wet-chemistry samples were used to49
FERC MS24486 CDR
10001
Upcoming Pages
Here’s what’s next.
Search Inside
This report can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Report.
Swanson, Michael L. Advanced High-Temperature, High-Pressure Transport Reactor Gasification, report, August 30, 2005; [Grand Forks, North Dakota]. (https://digital.library.unt.edu/ark:/67531/metadc889538/m1/61/: accessed July 17, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.