Valves - current operating experience of slurry valves (block and letdown) in coal liquefaction processes. Third quarter report Page: 17 of 56
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I.
Table 5. Summary of Previous Slurry Block Valve Experience in Pilot and Major Pilot Plants
Inlet LieProcessVaeVav
Liqefatio Line Salreaalv
Liquefaction ize Size Valve Pressure Strea Trim Body Experience/
Plant Size , fg. Temp ture Normal- Life
(in.) (in. ) (Psig) (.F) Material MaterialWilsonville
SRC IFt. Lewis
SRC -II
Baytown
Exxon Donor
Solvent1 or 2 -1
1-6
Catlettsburg 4+10
H-CoalRockwell-
Edwards Y
Pattern
Globe1/2--3 Rockwell-
Edwards Y
Pattern
Globe
1-6 A) WK4
POW-R-Seal
Gate
B) EPG
Ball
C) Rockwell
Dynamic
Balance
Plug
6+10 EPG Ball
Valve2000
600
2000
1900-
2000
3000Stellite 6
750-800 Stellite 6
850
850All Stellite.
6 except ball
of EPG valve
which is
tungsten
carbide coated347 S.S. Moderately successful
on this scale with
some seat leakage
-experienced. Normal
1-2 y life.
347 S.S. Partially successful.
Have some seat
leakage. Normal
1-2 y life.316 S.S.
and
347 S.S.Stellite 6 and 347 S.S.
WC coatings ',Currently developing
data.
Currently Developing
data.-9-
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Valves - current operating experience of slurry valves (block and letdown) in coal liquefaction processes. Third quarter report, report, 1981; Miamisburg, Ohio. (https://digital.library.unt.edu/ark:/67531/metadc672986/m1/17/: accessed April 18, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.