Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1992-12-28
1994-02-01
Mars, Howard T.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
585310, 585314, C07C 4106, C07C 522
Patent
active
052833739
ABSTRACT:
A combination of an etherification process and a process for the isomerization of linear alkenes to isoalkenes uses a separation zone that receives an effluent stream from the etherification reaction zone and separates it into a high boiling stream, a low boiling stream and an intermediate boiling stream in order to reduce the mass flow of reactants through the isomerization and etherification reaction zones. The separation zone includes at least one distillation column. The distillation column can provide a distillation function only, or can also provide a reactive distillation zone. The intermediate boiling stream leaves a two column separation zone as a bottoms stream from a second column or in a single column separation zone as a sidecut which in the case of reactive distillation is taken from the point above a bed of catalyst within the column. Taking the sidecut stream substantially eliminates the circulation of isoalkane hydrocarbons through the etherification and isomerization zone and maintains normal alkanes at an acceptable equilibrium level. The effluent from the isomerization zone may enter the first in a series of etherification zones or may enter a second etherification zone having higher capacity.
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Luebke Charles P.
Vora Bipin V.
Wegerer David A.
Zimmermann Joseph E.
Mars Howard T.
McBride Thomas K.
Tolomei John G.
UOP
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