Separations Technology in Petroleum Refining - Pall Corporation
Separations Technology in Petroleum Refining - Pall Corporation
Separations Technology in Petroleum Refining - Pall Corporation
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<strong>Pall</strong> Blowback Filter Selection<br />
Porous Metal PSS Filters<br />
Manufactured of s<strong>in</strong>tered sta<strong>in</strong>less<br />
steel powder, the PSS “S” medium offers<br />
exceptionally uniform permeability, and<br />
absolute removal efficiencies.<br />
These elements are seamless <strong>in</strong> construction<br />
with very high void volume (up<br />
to 60% <strong>in</strong> some grades). This provides<br />
very high dirt-hold<strong>in</strong>g capacity and low<br />
pressure loss, especially <strong>in</strong> very f<strong>in</strong>e<br />
grades, which permit design at high flux<br />
to help reduce capital costs.<br />
In addition to the standard product<br />
made from 316L sta<strong>in</strong>less steel, we supply<br />
PSS medium <strong>in</strong> Inconel, nickel, nickel<br />
molybdenum, and alum<strong>in</strong>ide alloys.<br />
PMF Metal Fiber Filters<br />
PMF filters are manufactured of f<strong>in</strong>ediameter<br />
316L sta<strong>in</strong>less steel fibers that<br />
are s<strong>in</strong>tered at their po<strong>in</strong>ts of contact to<br />
produce a uniform, strong, tapered-pore<br />
medium with exceptionally high dirthold<strong>in</strong>g<br />
capacity while one or more <strong>in</strong>ner<br />
layers provide absolute-rated filtration.<br />
Rigimesh Sta<strong>in</strong>less Steel<br />
Woven Wire Mesh Filters<br />
<strong>Pall</strong>’s patented process permits the<br />
use of f<strong>in</strong>er-diameter wires <strong>in</strong> the manufacture<br />
of the Rigimesh sta<strong>in</strong>less steel<br />
medium. This results <strong>in</strong> low pressure<br />
drop, more pores per unit area, and better<br />
dirt-hold<strong>in</strong>g capacity than that of any<br />
other woven metal filter. The medium is<br />
s<strong>in</strong>tered for superior tensile, yield, shear,<br />
and fatigue strength. Rigimesh ma<strong>in</strong>ta<strong>in</strong>s<br />
a uniform pore size and exhibits no<br />
media migration, even under high temperature<br />
and pressure conditions.<br />
Vitrosep Blowback Filters<br />
The rugged construction of the<br />
Vitrosep clean-<strong>in</strong>-place blowback filter<br />
allows jet pulse clean<strong>in</strong>g and operation at<br />
high flux. This reduces the system footpr<strong>in</strong>t<br />
and lowers <strong>in</strong>stalled cost of the<br />
equipment. Equipped with a one micron<br />
rated Teflon coated fiberglass medium,<br />
Vitrosep is constructed of a sta<strong>in</strong>less steel<br />
core, outer mesh wrap, and end caps.<br />
Vitropore Ceramic Filter Candles<br />
This rigid, highly efficient silicon carbide<br />
medium possesses high temperature<br />
and excellent corrosion resistance for gas<br />
clarification and solids recovery.<br />
The ability of every <strong>Pall</strong> Vitropore<br />
candle to withstand corrosion and fracture<br />
at high temperatures (to 1000°C) proves it<br />
has the necessary characteristics to clean<br />
up hot gases. At temperatures above<br />
650ºC, Vitropore candles are more resistant<br />
to corrosion than most metal filters.<br />
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