Abstract: The invention provides a process for treating a gas stream comprising hydrogen, methane and C2+ hydrocarbons comprising sending the gas stream to a pressure swing adsorption unit to produce a first purified gas stream comprising more than 99 mol % hydrogen and a second purified gas stream comprising hydrogen, methane and C2+ hydrocarbons, and sending the second purified gas stream to a gas plant to be separated into a plurality of streams.

Abstract: The invention provides for sending a natural gas stream through a pressure swing adsorption unit to send a gas stream comprising mainly nitrogen, methane and hydrogen to a fuel gas stream and a gas stream comprising a significant majority of C2+ hydrocarbons from the natural gas stream to a tail gas stream to then go to a stream cracker.

Abstract: The invention provides a process for treating a gas stream comprising hydrogen, methane and C2+ hydrocarbons comprising sending the gas stream to a pressure swing adsorption unit to produce a first purified gas stream comprising hydrogen and methane and a second purified gas stream comprising hydrogen, methane and C2+ hydrocarbons, sending the first purified gas stream to a second pressure swing adsorption unit to produce a hydrogen product stream comprising more than 99 mol % hydrogen and a fuel gas stream comprising more than 90 mol % of the methane in the first product gas stream, and sending the second purified gas stream to a gas plant to be separated into a plurality of streams.

Abstract: An adjustable template device for pacemaker ECG analysis is similar to a slide rule with a transparent window portion which can be laid over an ECG trace to aid in its analysis. A frame for the template has a back member and a cover member connected together with rivets, with the cover member having cutout portions through which various scales printed on the back portion can be seen. A series of movable transparent plastic sheets slide back and forth independently in the frame to allow measurement of time intervals on the ECG trace. Fiducial marks on the movable sheets indicate time intervals by their positions with respect to scales on the back member. AV, AE, MT, PVAR, and pacing intervals can all be set simultaneously on the template. A photocopy of the template overlying the ECG trace can be made to provide a permanent record.