Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1975-03-05
1977-01-04
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
62 10, 62 13, 210180, 210534, 210539, F25J 300
Patent
active
040011160
ABSTRACT:
A gravitational separator for separating solids from liquefied natural gas having a closed tank having a conical lower portion angled at least 60.degree. from the horizontal and terminating at the bottom in an apex opening in communication with a valve means for removing settled solids from the tank, a vertically positioned cylindrical shell, defining a stilling chamber, located at least partially below a predetermined level of liquified gas, a conical shell vapor disengaging means located above the stilling chamber, conduit means for feeding a gas or liquefied gas containing impurities terminating in the stilling chamber below the level of a liquefied gas in the tank, means for withdrawing a gas or vapor from the tank.
A process of separating impurities from a stream of methane by feeding the stream to a tank through a conduit terminating inside of a stilling chamber beneath the level of liquefied methane, said stilling chamber being defined by a cylindrical shell located in the tank at a position to depend at least partially below a level of liquefied methane in the tank and extending to below the terminus of the feed conduit, said tank being closed and having a conical lower portion angled at least 60.degree. from the horizontal and terminating at the bottom in an apex opening in communication with a valve, settling out solidified impurities in the lower portion as a slurry with liquefied methane, removing the slurry, and withdrawing methane vapor from the upper space of the tank.
REFERENCES:
patent: 883608 (1908-03-01), Antoine
patent: 1020013 (1912-03-01), Arbuckle
patent: 2054791 (1936-09-01), Del Mar
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patent: 3203192 (1965-08-01), Tafreshi
patent: 3283521 (1966-11-01), Harmens
patent: 3398544 (1968-08-01), Crownover
patent: 3617544 (1971-11-01), Voss
patent: 3798918 (1974-03-01), Maher et al.
Chicago Bridge & Iron Company
Hart Charles N.
Mukai R. G.
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