45results about How to "Less utilization" patented technology

A method of producing a hydrogen product stream in which a steam stream is reacted with a hydrocarbon containing stream within a steam methane reformer. The resulting product stream is subjected to a water gas shift reaction and then to pressure swing adsorption to produce the hydrogen product stream. The hydrocarbon stream is alternatively formed from a first type of feed stream made up of natural gas, refinery off-gas, naphtha or synthetic natural gas or combinations thereof and a second type that is additionally made up of a hydrogen and carbon monoxide containing gas. During use of both of the types of feed streams, the flow rate of the steam stream is not substantially changed and reformer exit temperatures of both the reactant and the flue gas side are held essentially constant.

A hybrid seal for sealing the circumferential gap between a first machine component and a second machine component comprises at least one shoe extending along one of the machine components in a position to create a non-contact seal, at least one spring element connected between one of the machine components and the shoe(s) and a stack of sealing elements located within a slot formed in the shoe(s), wherein a primary seal and secondary seal of the circumferential gap is created by the shoe(s) in cooperation with the spring element(s) and sealing elements, respectively.

A hybrid seal for sealing the circumferential gap between a first machine component and a second machine component comprises at least one shoe extending along one of the machine components in a position to create a non-contact seal, at least one spring element connected between one of the machine components and the shoe(s) and a stack of sealing elements located within a slot formed in the shoe(s), wherein a primary seal and secondary seal of the circumferential gap is created by the shoe(s) in cooperation with the spring element(s) and sealing elements, respectively.

The invention provides methods of synthesizing peptides, involving the steps of providing a composition including a peptide fragment, wherein the peptide fragment has at least one amino acid residue and includes a base-sensitive, N-terminal protecting group; removing the base-sensitive, N-terminal protecting group from the peptide fragment using a deprotection reagent that includes a base, whereby an N-terminal functionality on the peptide fragment is deprotected; removing the base from the composition to provide a residual base content of more than 100 ppm; causing a reactive peptide fragment having a reactive C-terminus and a base-sensitive N-terminal protecting group to react with the deprotected N-terminal functionality of the peptide fragment under conditions such that the reactive peptide fragment is added to the peptide fragment; and optionally repeating the deprotection and coupling steps until a desired peptide is obtained. Also provided are methods of synthesizing peptides, wherein base is removed from the composition to a point where the composition would provide a positive chloranil test. Also provided are methods of synthesizing peptides, wherein coupling is performed in basic reaction mixtures.

A reduced scrim reinforcement is provided in single ply roofing membranes having excellent wind uplift performance. Also provided is a method for making a roofing membrane having the scrim reinforcement incorporated therein.