Patent application number | Description | Published |
20090321057 | Column Installed Condenser - A reactor-installed or column-installed vertical plate heat exchanger having channels for flow of cooling fluid and vertical passageways between the cooling fluid channels for flow of product. A divider is located between a first fraction and a second fraction of the product vertical passageways and a vapor product inlet communicates with the tops of the product vertical passageways in the first fraction. A product collection volume communicates with the bottoms of the product vertical passageways and an outlet communicates with the product collection volume for recovering condensed product. An uncondensed vapor outlet communicates with the tops of the vertical passageways in the second fraction for removing uncondensed vapor from the heat exchanger. | 12-31-2009 |
20100276122 | RE-DIRECTION OF VAPOR FLOW ACROSS TUBULAR CONDENSERS - Vapor flow-diverting devices that re-direct upwardly flowing vapor, for example, in a downward direction across condenser tubes disposed in the upper or top section of a vapor-liquid contacting apparatus, are described. These devices are particularly beneficial in tubular condensers within distillation columns and may be used in combination with other associated equipment (e.g., a deflector plate and divider plate) as well as in combination with the tube surface enhancements to improve the heat transfer coefficient. | 11-04-2010 |
20100276123 | TUBULAR CONDENSERS HAVING TUBES WITH EXTERNAL ENHANCEMENTS - Improvements in tubes, which increase the heat exchange capacity of tubular heat exchangers using the tubes, are described. These improvements involve the use of one or more external surface enhancements, optionally combined with an internal enhancement and/or differing tube geometries. These improvements apply, for example, to internal condensers, including those in which the tube bundles are oriented vertically, in vapor-liquid contacting apparatuses such as distillation columns. | 11-04-2010 |
20100313598 | Separation of a Fluid Mixture Using Self-Cooling of the Mixture - The use of an inexpensive heat exchanger for self-cooling of a fluid mixture is disclosed. The heat exchanger is made up of a plurality of plates and each plate has at least two channels defined in the plate. A fluid mixture is cooled and expanded, and separated, generating at least two process streams. One or more of the process streams are passed back to the heat exchanger to cool the fluid mixture. | 12-16-2010 |
20100314085 | Self Cooling Heat Exchanger - An inexpensive heat exchanger is disclosed, wherein the heat exchanger is made up of a plurality of plates and each plate has at least one channel defined in the plate. The plates are stacked and bonded together to form a block having conduits for carrying at least one fluid and where the exchanger includes an expansion device enclosed within the unit. | 12-16-2010 |
20100314086 | Efficient Self Cooling Heat Exchanger - An inexpensive heat exchanger is disclosed, wherein the heat exchanger is made up of a plurality of plates and each plate has at least one channel defined in the plate. The plates are stacked and bonded together to form a block having conduits for carrying at least one fluid and where the exchanger includes an expansion device enclosed within the unit. The plates include construction to thermally insulate the expansion region from the heat exchange region to improve efficiency of the heat exchanger. | 12-16-2010 |
20100314087 | Efficient Self Cooling Heat Exchanger - An inexpensive heat exchanger is disclosed, wherein the heat exchanger is made up of a plurality of plates and each plate has at least one channel defined in the plate. The plates are stacked and bonded together to form a block having conduits for carrying at least one fluid and where the exchanger includes an expansion device enclosed within the unit. The plates include construction to thermally insulate the sections of the heat exchanger to control the heat flow within the heat exchanger. | 12-16-2010 |
20120145366 | EFFICIENT SELF COOLING HEAT EXCHANGER - An inexpensive heat exchanger is disclosed, wherein the heat exchanger is made up of a plurality of plates and each plate has at least one channel defined in the plate. The plates are stacked and bonded together to form a block having conduits for carrying at least one fluid and where the exchanger includes an expansion device enclosed within the unit. The plates include construction to thermally insulate the sections of the heat exchanger to control the heat flow within the heat exchanger. | 06-14-2012 |
20120145368 | PROCESS FOR TRANSFERRING HEAT OR MODIFYING A TUBE IN A HEAT EXCHANGER - One exemplary embodiment can be a process for transferring heat to a first stream from a second stream in a hydrocarbon process. The process can include passing the first stream through at least one generally vertically-orientated tube in an exchanger. An interior surface of the at least one generally vertically-orientated tube may form one or more curved irregularities where the first stream, prior to entering the at least one generally vertically-orientated tube, may include a mixture of a gas including hydrogen and at least one or more C1-C3 hydrocarbons, and a liquid including one or more C4-C13 hydrocarbons. | 06-14-2012 |
20120145369 | EFFICIENT SELF COOLING HEAT EXCHANGER - An inexpensive heat exchanger is disclosed, wherein the heat exchanger is made up of a plurality of plates and each plate has at least one channel defined in the plate. The plates are stacked and bonded together to form a block having conduits for carrying at least one fluid and where the exchanger includes an expansion device enclosed within the unit. The plates include construction to thermally insulate the expansion region from the heat exchange region to improve efficiency of the heat exchanger. | 06-14-2012 |
20120222447 | Tubular Condensers Having Tubes with External Enhancements - Improvements in tubes, which increase the heat exchange capacity of tubular heat exchangers using the tubes, are described. These improvements involve the use of one or more external surface enhancements, optionally combined with an internal enhancement and/or differing tube geometries. These improvements apply, for example, to internal condensers, including those in which the tube bundles are oriented vertically, in vapor-liquid contacting apparatuses such as distillation columns. | 09-06-2012 |
20120330076 | EXCHANGER AND A PROCESS RELATING THERETO - One exemplary embodiment can be a process for alkylating. The process can include providing a first effluent from a first alkylation zone, and providing a second effluent from a second alkylation zone. Generally, the first and second effluents are provided to an exchanger for reboiling a fractionation zone. | 12-27-2012 |
20140020874 | EFFICIENT SELF COOLING HEAT EXCHANGER - An inexpensive heat exchanger is disclosed, wherein the heat exchanger is made up of a plurality of plates and each plate has at least one channel defined in the plate. The plates are stacked and bonded together to form a block having conduits for carrying at least one fluid and where the exchanger includes an expansion device enclosed within the unit. The plates include construction to thermally insulate the sections of the heat exchanger to control the heat flow within the heat exchanger. | 01-23-2014 |
20140020875 | PROCESS FOR TRANSFERRING HEAT OR MODIFYING A TUBE IN A HEAT EXCHANGER - One exemplary embodiment can be a process for transferring heat to a first stream from a second stream in a hydrocarbon process. The process can include passing the first stream through at least one generally vertically-orientated tube in an exchanger. An interior surface of the at least one generally vertically-orientated tube may form one or more curved irregularities where the first stream, prior to entering the at least one generally vertically-orientated tube, may include a mixture of a gas including hydrogen and at least one or more C1-C3 hydrocarbons, and a liquid including one or more C4-C13 hydrocarbons. | 01-23-2014 |
20140076528 | SELF COOLING HEAT EXCHANGER - An inexpensive heat exchanger is disclosed, wherein the heat exchanger is made up of a plurality of plates and each plate has at least one channel defined in the plate. The plates are stacked and bonded together to form a block having conduits for carrying at least one fluid and where the exchanger includes an expansion device enclosed within the unit. | 03-20-2014 |
20140102134 | TUBULAR CONDENSERS HAVING TUBES WITH EXTERNAL ENHANCEMENTS - Improvements in tubes, which increase the heat exchange capacity of tubular heat exchangers using the tubes, are described. These improvements involve the use of one or more external surface enhancements, optionally combined with an internal enhancement and/or differing tube geometries. These improvements apply, for example, to internal condensers, including those in which the tube bundles are oriented vertically, in vapor-liquid contacting apparatuses such as distillation columns. | 04-17-2014 |
20140257010 | ENERGY CONSERVATION IN HEAVY-HYDROCARBON DISTILLATION - An aromatics complex producing one or more xylene isomers offers a large number of opportunities to conserve energy by heat exchange within the complex. One previously unrecognized opportunity is through providing two parallel distillation columns operating at different pressures to separate C | 09-11-2014 |
20140338869 | PLATE HEAT EXCHANGER AND METHOD OF USING - A process for heating a cold stream with a hot stream is described. At least one of the cold inlet or outlet, the hot inlet or outlet, the cold inlet or outlet header, the hot inlet or outlet header, and the plurality of plates is made of one of two stainless steel alloys. One alloy has higher molybdenum content with copper for improved corrosion resistance and is resistant to chloride pitting, chloride SCC, and PTA SCC. The other alloy has significantly higher tensile and yield strength, which will reduce the susceptibility of the plate bundle to thermal stress damage. | 11-20-2014 |