Patent ID: 8721842
Filing Date: 2014-05-13
Classification: B01D,B01J,C07C,Y02P

Abstract:
1. A process integrating catalytic reaction and rectification, comprising the following steps: leading two reactants that are separately stored in storage tanks to preheaters, and pre-mixed with a solid catalyst, introducing the two reactants through a feeding pipe into a jet agitation reaction section, which is a reactor, in a middle of a catalytic reaction-rectification integrated column; flowing the two reactants in the jet-agitation reaction section through a filtering bottom socket and a first pipe to a centrifugal pump; wherein, pressurizing by the centrifugal pump, the two reactants to be at least one of heated and cooled by going through a heat exchanger and then led into a subsonic or transonic jet agitator of the jet-agitation reaction section; further wherein the two reactants are jetted into the jet-agitation reaction section at a high speed to mix a solid and a liquid in the jet-agitation reaction section; providing a filtering overflow pipe in the jet-agitation reaction section; wherein, when the fluid therein reaches a certain level, the fluid overflows down through a pipe into a liquid distributor at a lower part of the catalytic reaction-rectification integrated column; further wherein, after being distributed therein, the fluid is introduced into a stripping section of the catalytic reaction-rectification integrated column; fractionally distilling and separating the fluid in the stripping section of the catalytic reaction-rectification integrated column, and thereafter is channeled from a bottom of the catalytic reaction-rectification integrated column; wherein a part of the fluid is fed to a stripping column for further separation while the rest is heated into steam by a first reboiler, and is subsequently channeled back to the stripping section of the catalytic reaction-rectification integrated column; leading the gas evaporating from the stripping section of the catalytic reaction-rectification integrated column through a second pipe and an air distributor back to a rectification section of the catalytic reaction-rectification integrated column for further separation, while a precipitating fluid in the rectification section directly flows into the jet-agitation reaction section of the catalytic reaction-rectification integrated column for further processing; wherein the gas separated by the rectification section is condensed into liquid by a first condenser at a column top; the condensed liquid is then introduced goes into an oil-water separator for oil-water phase-splitting; the oil-phase components flow back to a top of the rectification section of the catalytic reaction-rectification integrated column while the water-phase components are channeled into a dehydration column, wherein the water-phase components are dehydrated so that the oil-phase components in the water-phase components are further extracted, leading the fluid, after being separated through dehydration in the dehydration column, to the column top, wherein the fluid is condensed by a second condenser and channeled to the oil-water separator for phase-splitting; wherein the water-phase components then flow into a top of the dehydration column while the oil-phase components flow back to the rectification section of the catalytic reaction-rectification integrated column through a third pipe and the water-phase components that flow into the dehydration column, after being upgradingly purified, is discharged through a fourth pipe at the bottom of the dehydration column; and further separating the fluid, after the fractionally distilling and separating step by the rectification column; wherein the gas obtained is condensed into liquid by a third condenser at the top of the column; the liquid then comes into a collector, part of which flows back while the rest returns to the jet-agitation reaction section of the column again or to a storage tank; further wherein the fluid at the bottom of the rectification column is the high boiling point distillate, part of which is channeled back to the storage tank through a fifth pipe on a base of the column, while the rest is heated into steam by a second reboiler and led to the bottom of the rectification column.