Abstract: A system and method for producing hydrogen from hydrocarbon and steam, including a membrane reformer with multiple membrane reactors each having a tubular membrane. The bore of the tubular membrane is the permeate side for the hydrogen. The region external to the tubular membrane is the retentate side for carbon dioxide. A sweep gas flows through the bore to displace hydrogen in a direction countercurrent to flow of hydrocarbon and steam in the region external to the tubular membrane. The method includes discharging hydrogen as permeate with the sweep gas from the bore, and discharging carbon dioxide in the region external to the tubular membrane as retentate from the membrane reactor.

Abstract: A system and method for producing hydrogen from hydrocarbon and steam, including a membrane reformer with multiple membrane reactors each having a tubular membrane. The bore of the tubular membrane is the permeate side for the hydrogen. The region external to the tubular membrane is the retentate side for carbon dioxide. A sweep gas flows through the bore to displace hydrogen in a direction countercurrent to flow of hydrocarbon and steam in the region external to the tubular membrane. The method includes discharging hydrogen as permeate with the sweep gas from the bore, and discharging carbon dioxide in the region external to the tubular membrane as retentate from the membrane reactor.

Abstract: Sealing socket (1) and method for arranging a sealing socket to a tube (2). A sealing socket (1) includes a sleeve (3) having an outer dimension somewhat larger than the tube (2) to be sealed, defining an annular compartment (4) between the tube (2) and the sleeve (3), in which a gasket (6) is introduced. The gasket material is pressurised by a ring (7) which is permanently connected by welding (8) to the sleeve (3).

Abstract: The invention relates to a cutter blade for use on a rotary cutter of the tractor drawn type. Rotary cutters of this type usually have three or four cutter blades rotatably mounted on a blade carrier that can be rotated to induce cutter blade rotation and thereby permit cutting of grass. The cutter blade of the invention has a curved cutting edge with the section including the cutting edge being off-set with respect to the section whereby the blade is mounted on its blade carrier. The use of such cutter blades on a rotary cutter improves cutting efficiency, provides for an increased blade life and reduces the power requirements of the rotary cutter with which the blades are associated.