Abstract: A multiple adiabatic bed reforming apparatus and process involving stage-wise combustion and multiple reforming chambers. Co-flow and cross-flow occurs under laminar flow conditions. A reformer suitable for small scale production as well as large scale production. A passive stage-by-stage fuel distribution network suitable for low pressure fuel wherein the resistances in successive fuel distribution lines control the amount of fuel delivered to each combustion stage. Heat is captured from reforming syngas product to preheat gases before entering the reformer. Conditions that would produce unwanted coking or metal dusting are avoided or localized away from the heat exchangers to locations which can be cost effectively protected. A chemical reactor which has a core composed of a stack of metal plates that are diffusion bonded in face-to-face relationship.

Abstract: A heat exchanger core incorporating diffusion bonded plates and heat exchangers incorporating such core are disclosed. The heat exchanger core comprises first and second groups of interleaved plates which are arranged respectively to carry first and second heat exchange fluids, and each of the plates in each group is formed in one of its faces with thirty or more platelets, each of which is composed of a group of parallel channels. Ports extend through the first and second groups of plates for conveying the first and second heat exchange fluids to and from the platelets, and distribution channels connect opposite ends of each platelet in each of the plates to associated ones of the ports.

Abstract: A heat exchanger core incorporating diffusion bonded plates and heat exchangers incorporating such core are disclosed. The heat exchanger core comprises first and second groups of interleaved plates which are arranged respectively to carry first and second heat exchange fluids, and each of the plates in each group is formed in one of its faces with thirty or more platelets, each of which is composed of a group of parallel channels. Ports extend through the first and second groups of plates for conveying the first and second heat exchange fluids to and from the platelets, and distribution channels connect opposite ends of each platelet in each of the plates to associated ones of the ports.