Document Type and Number:
Japanese Patent JPS6366241
Kind Code:
B2
Abstract:
This invention relates to distillation in pressurized columns and provides a process for reboiling such columns. The column 1 working at a pressure of 11 bar is fed with a mixture of hydrocarbons preheated in exchangers 2a and 2b to about 130 DEG C. A part of the bottom is withdrawn, then expanded by means of an expansion valve 5 to 2.5 bar in an expansion balloon flask 6 where the phases are separated. The vapor phase is compressed in a compressor 7 to the pressure of the column and reinjected at the bottom of the column, whereas the liquid phase is removed. With the process, energy can be saved in pressurized distillation columns, for example in petrol stabilization columns.
Inventors:
JANNHOORU GURURIA
FUIRITSUPU JAKOBU
ROBEERU JAMAN
FUIRITSUPU JAKOBU
ROBEERU JAMAN
Application Number:
JP21258482A
Publication Date:
December 20, 1988
Filing Date:
December 03, 1982
Export Citation:
Assignee:
ELF FRANCE
International Classes:
B01B1/00; B01D1/28; B01D3/14; B01D3/32; C10G7/02