Abstract: A process for dehydrogenating a paraffinic feedstock, producing olefins and/or dienes. The process includes feeding a paraffinic hydrocarbon feedstock comprising one or more C2+ paraffinic hydrocarbons and a fuel gas stream to a dehydrogenation reactor preheater, combusting the fuel gas stream in the dehydrogenation reactor preheater and heating the paraffinic hydrocarbon feedstock to a temperature in the range of 500-650° C., producing a heated paraffinic feedstock, feeding the heated paraffinic feedstock to a first dehydrogenation reactor operating in a reaction mode and containing an active dehydrogenation catalyst and at least one first electrical heating element, heating the heated paraffinic feedstock in the first dehydrogenation reactor using the at least one first electrical heating element, and contacting the heated paraffinic feedstock with the active dehydrogenation catalyst and the at least one electrical heating element thereby producing an olefinic product stream comprising one or more olefins.

Abstract: Processes and systems for recovering hydrogen may include feeding a gas stream, comprising hydrogen and additional gases, to a pressure swing adsorption (PSA) system and feeding a membrane permeate stream comprising hydrogen to the PSA system. In the PSA system, a portion of the hydrogen may be separated from the additional gases to recover a hydrogen product stream and a PSA tail gas stream comprising unseparated hydrogen and the additional gases. The PSA tail gas stream may be fed to a membrane separation unit for separating hydrogen from the additional gases and to recover (i) the membrane permeate stream comprising hydrogen fed to the PSA system and (ii) a membrane tail gas stream comprising the additional gases. Embodiments herein may additionally include a refrigeration system for partially condensing one or both of the feed gas stream and the PSA tail gas stream, enhancing the efficiency of the membrane separation unit.

Abstract: An improved process for the production of olefins, and in particular for separation of olefins produced by a dehydrogenation process from paraffin feed stocks, is provided. A high pressure product splitter is used to separate olefins produced in a dehydrogenation plant from residual paraffin feed stocks. The use of a high pressure splitter to separate olefin products from paraffin feed stocks allows for recovery of a high purity olefin product with lower energy consumption compared to prior art processes. The process is particularly suited to separation of propylene from propane.

Abstract: This invention relates to an integrated process for the efficient production of olefins from C4 feedstocks comprising butane and more particularly to a method of producing propylene and butadiene. The process combines a dehydrogenation unit with an olefin conversion unit to convert butane feedstock to propylene and butadiene products. The combined catadiene-OCT process produces yields of propylene from normal butane in excess of 70%.

Abstract: An improved process for the production of olefins, and in particular for separation of olefins produced by a dehydrogenation process from paraffin feed stocks, is provided. A high pressure product splitter is used to separate olefins produced in a dehydrogenation plant from residual paraffin feed stocks. The use of a high pressure splitter to separate olefin products from paraffin feed stocks allows for recovery of a high purity olefin product with lower energy consumption compared to prior art processes. The process is particularly suited to separation of propylene from propane.

Abstract: An improved process for the production of olefins, and in particular for separation of olefins produced by a dehydrogenation process from paraffin feed stocks, is provided. A high pressure product splitter is used to separate olefins produced in a dehydrogenation plant from residual paraffin feed stocks. The use of a high pressure splitter to separate olefin products from paraffin feed stocks allows for recovery of a high purity olefin product with lower energy consumption compared to prior art processes. The process is particularly suited to separation of propylene from propane.

Abstract: Improved processes for the separation of olefins from paraffins, such as propylene from propane are provided. Two product splitters are used in parallel to separate propylene from propane. One of the product splitters operates at a lower pressure, while the second product splitter operates at a higher pressure. The use of the two splitters in parallel provides a process for recovery of a high purity propylene product with lower energy consumption compared to prior art processes.

Abstract: This invention relates to an integrated process for the efficient production of olefins from C4 feedstocks comprising butane and more particularly to a method of producing propylene and butadiene. The process combines a dehydrogenation unit with an olefin conversion unit to convert butane feedstock to propylene and butadiene products. The combined catadiene-OCT process produces yields of propylene from normal butane in excess of 70%.

Abstract: An improved process for the production of olefins, and in particular for separation of olefins produced by a dehydrogenation process from paraffin feed stocks, is provided. A high pressure product splitter is used to separate olefins produced in a dehydrogenation plant from residual paraffin feed stocks. The use of a high pressure splitter to separate olefin products from paraffin feed stocks allows for recovery of a high purity olefin product with lower energy consumption compared to prior art processes. The process is particularly suited to separation of propylene from propane.

Abstract: Improved processes for the separation of olefins from paraffins, such as propylene from propane are provided. Two product splitters are used in parallel to separate propylene from propane. One of the product splitters operates at a lower pressure, while the second product splitter operates at a higher pressure. The use of the two splitters in parallel provides a process for recovery of a high purity propylene product with lower energy consumption compared to prior art processes.