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Title: Method and apparatus for multi-component fractionation

Abstract

A fractionation method is described comprising passing a feedstream to be fractionated to a first fractionator and (a) withdrawing bottoms product from the first fractionator and introducing the withdrawn bottoms product into a second fractionator operating in a predetermined moderate pressure range sufficient to provide integration of the second fractionator with the first fractionator and to allow transfer of overhead product from the second fractionator into a stripper zone and thereafter into the first fractionator; (b) separating the withdrawn bottoms product into relatively light ends and relatively heavy ends by introducing stripping vapor into the second fractionator; (c) introducing a controlled stream of light product quench comprising bottoms product from the stripper zone at a predetermined low temperature and variable flow rate into the second fractionator to adjust an end point of overhead products existing the second fractionator; (d) passing the overhead products exiting the second fractionator into the stripper and introducing relatively lighter product components from the first fractionator into the stripper zone, the overhead products from the second fractionator stripping light ends from the relatively lighter product components; and (e) separating overhead product from the stripper zone into relatively light ends and relatively heavy ends by introducing overheadmore » product from the stripper into the first fractionator, such that the stripper overhead product is further fractionated in the first fractionator.« less

Inventors:
Publication Date:
OSTI Identifier:
5212554
Patent Number(s):
US 4606816
Assignee:
Mobil Oil Corp., New York, NY
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 31 Dec 1984
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; PETROLEUM; FRACTIONATION; FLOW RATE; PRESSURE CONTROL; SEPARATION EQUIPMENT; STEAM STRIPPING; TEMPERATURE CONTROL; VAPORS; CONTROL; ENERGY SOURCES; FLUIDS; FOSSIL FUELS; FUELS; GASES; MANAGEMENT; PROCESSING; SEPARATION PROCESSES; WASTE MANAGEMENT; WASTE PROCESSING; WATER TREATMENT; 020400* - Petroleum- Processing

Citation Formats

Harandi, M N. Method and apparatus for multi-component fractionation. United States: N. p., 1986. Web.
Harandi, M N. Method and apparatus for multi-component fractionation. United States.
Harandi, M N. 1986. "Method and apparatus for multi-component fractionation". United States.
@article{osti_5212554,
title = {Method and apparatus for multi-component fractionation},
author = {Harandi, M N},
abstractNote = {A fractionation method is described comprising passing a feedstream to be fractionated to a first fractionator and (a) withdrawing bottoms product from the first fractionator and introducing the withdrawn bottoms product into a second fractionator operating in a predetermined moderate pressure range sufficient to provide integration of the second fractionator with the first fractionator and to allow transfer of overhead product from the second fractionator into a stripper zone and thereafter into the first fractionator; (b) separating the withdrawn bottoms product into relatively light ends and relatively heavy ends by introducing stripping vapor into the second fractionator; (c) introducing a controlled stream of light product quench comprising bottoms product from the stripper zone at a predetermined low temperature and variable flow rate into the second fractionator to adjust an end point of overhead products existing the second fractionator; (d) passing the overhead products exiting the second fractionator into the stripper and introducing relatively lighter product components from the first fractionator into the stripper zone, the overhead products from the second fractionator stripping light ends from the relatively lighter product components; and (e) separating overhead product from the stripper zone into relatively light ends and relatively heavy ends by introducing overhead product from the stripper into the first fractionator, such that the stripper overhead product is further fractionated in the first fractionator.},
doi = {},
url = {https://www.osti.gov/biblio/5212554}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 19 00:00:00 EDT 1986},
month = {Tue Aug 19 00:00:00 EDT 1986}
}