Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Venting seal loop

It is best to locate the bottom of the seal loop at a lower elevation than the outlet rim of the reflux pipe (Fig. 5.1a, h, d). This prevents the seal loop liquid from siphoning back into the column. Arrangements c and e may suffer from siphoning unless an open high-point vent is installed to break that siphon (188). However, an open vent can be troublesome as described below (item 3). [Pg.120]

In 2004, at the B.P. Refinery in Texas City, 15 contract workers were killed and 170 seriously binrned. The relief valve opened on the top of a naphtha splitter. The relief valve did not vent to the flare, but to a blowdown stack. The blowdown stack was open to the atmosphere and drained to a sewer. This drain had a loop seal to prevent vapors from blowing into the sewer. [Pg.575]

A special version of a flooded reboiler designed for low-boiling materials (requiring low-temperature steam) is shown in Figure 4.4. Steam to the reboiler is throttled in a conventional fashion—usually flow controlled or flow-ratio controlled—but there is neither a trap nor a condensate pot. Instead condensate is removed through a loop seal whose top is vented to atmosphere. The height... [Pg.115]

The vented loop seal maintains P, just a litde above atmospheric pressure. We can now write the foUowii equations ... [Pg.371]


See other pages where Venting seal loop is mentioned: [Pg.1150]    [Pg.81]    [Pg.79]    [Pg.166]    [Pg.9]    [Pg.31]    [Pg.791]    [Pg.181]   
See also in sourсe #XX -- [ Pg.120 ]




SEARCH



Seal loop

Venting

Vents

© 2024 chempedia.info