| Patent application number | Description | Published |
|---|
| 20090030251 | Use of Olefin Cracking to Produce Alkylate - A process for producing a feedstock for gasolines having very little aromatic concentrations is disclosed. The present process uses by-product olefins and alkanes to produce an alkylate for use in gasoline blending. | 01-29-2009 |
| 20090099398 | Pentane Catalytic Cracking Process - A process is presented for the production of light olefins from a paraffin stream comprising pentanes. | 04-16-2009 |
| 20090120780 | Splitter with Multi-Stage Heat Pump Compressor and Inter-Reboiler - A splitter system is disclosed that produces a product stream from a mixed stream of two materials with similar boiling points. A multi-stage heat pump compressor is used in combination with a bottoms reboiler and an intermediate reboiler resulting in reduced utility consumption. The appropriately placed intermediate reboiler enables use of a lower temperature heat source relative to the bottoms reboiler heat source. As a result, a lower pressure overhead vapor stream can be used to deliver heat to both the intermediate and bottoms reboilers, thereby conserving energy. The first stage of the multi-stage heat pump compressor delivers pressurized overhead vapor to the intermediate reboiler and the second stage provides pressurized overhead vapor to the bottoms reboiler. The disclosed design and method lessens the heat pump compressor power consumption and trim condenser duty for a propylene/propane splitter system by over 20%. A third stage of compression upstream of the overhead trim condenser may be used for purposes of making the column pressure and temperatures independent of the trim condenser temperature. | 05-14-2009 |
| 20100101273 | Heat Pump for High Purity Bottom Product - An apparatus for reducing the energy consumption of a distillation column is disclosed. The apparatus draws off an intermediate vapor stream from the rectification section of the distillation column, where the vapor stream is compressed and used to reboil a portion of the bottoms stream. The compressed vapor stream transfers energy to the bottoms stream, thereby condensing a portion of the vapor stream while vaporizing the bottoms stream. | 04-29-2010 |
| 20100132254 | COMBINED TEMPERATURE CONTROLLED ADSORPTION AND HEAT PUMP PROCESS FOR FUEL ETHANOL DEHYDRATION - Systems and processes for dehydration of a process stream in the production of motor fuel grade ethanol (MFGE) can include temperature controlled adsorption of water in the process stream, and heat pumping of the associated heat of adsorption. The process can include providing a process stream ( | 06-03-2010 |
| 20100132548 | TEMPERATURE CONTROLLED ADSORPTION FOR DEHYDRATION OF WATER RICH STREAMS - A process for dehydration of a water rich stream, the process comprising providing a process stream to a first temperature controlled adsorber that is undergoing adsorption, where the first temperature controlled adsorber has one or more adsorption flow passages containing an adsorptive material coating and one or more heat transfer flow passages and producing a dehydrated effluent stream. The process stream is passed through the one or more adsorption flow passages, where water is adsorbed by the adsorptive material coating, and a heat of adsorption is generated. The heat of adsorption is removed by passing a cooling fluid through the one or more heat transfer flow passages. The process stream can be a process stream for producing motor fuel grade ethanol. | 06-03-2010 |
| 20100137657 | COMBINED TEMPERATURE CONTROLLED WATER ADSORPTION AND TWO STAGE HEAT PUMP PROCESS FOR FUEL ETHANOL DEHYDRATION - Systems and processes for dehydration of a process stream in the production of motor fuel grade ethanol (MFGE) can include temperature controlled adsorption of water in the process stream, and heat pumping to transfer heat from the process stream to a heat sink using one or more stages of heat pumping. One stage of heat pumping can be achieved during the regeneration process of a temperature controlled adsorber by desorbing the adsorbed water at a thermal condition enabling useful heat recovery. Another stage of heat pumping can be achieved during the adsorption process of a temperature controlled adsorber by transferring the heat of water adsorption to a heat sink. The heat sink with respect to each stage of heat pumping can be a solids separation unit, such as a beer column. | 06-03-2010 |
| 20100150812 | INDIRECTLY HEATED TEMPERATURE CONTROLLED ADSORBER FOR SORBATE RECOVERY - Systems and processes are provided that relate to the recovery of sorbates in processes utilizing temperature controlled adsorption. Sorbate recovery can include providing a temperature controlled adsorber that is undergoing a regeneration cycle after undergoing an adsorption cycle. The temperature controlled adsorber can have one or more adsorption flow passages and one or more heat transfer flow passages. The one or more adsorption flow passages can contain an adsorptive material coating with a sorbate adsorbed thereto. A heating fluid can be provided to the one or more heat transfer flow passages of the temperature controlled adsorber. A regeneration stream can be provided to the one or more adsorption flow passages of the temperature controlled adsorber. The adsorptive material coating can be regenerated by removing the sorbate from the temperature controlled adsorber to produce a regeneration effluent stream. | 06-17-2010 |
| 20100224565 | MULTIPLE BED TEMPERATURE CONTROLLED ADSORPTION - The systems and processes disclosed herein relate generally to multi bed temperature controlled adsorption for use in the recovery of sorbates that are removed from process streams by adsorption. Multi bed temperature controlled adsorber systems can include three or more temperature controlled adosrbers that operate in parallel. Each temperature controlled adsorber through a series of steps including an adsorption step, a first bed to bed interchange, a regeneration step, and a second bed to bed interchange. | 09-09-2010 |
| 20110118516 | Use of Olefin Cracking to Produce Alkylate - A process for producing a feedstock for gasolines having very little aromatic concentrations is disclosed. The present process uses by-product olefins and alkanes to produce an alkylate for use in gasoline blending. | 05-19-2011 |
