Abstract: An apparatus and method for sulfur recovery uses a scrubber tower with a plurality of vertically spaced scrubber trays in the tower. Sulfide-lean liquor is supplied to each of the trays and an acid gas is supplied to the tower below the trays. A downcomer extends in the tower and through the trays for accumulating liquid from the trays and moving the liquid to the bottom of the tower. The sulfide-lean liquor and acid gas are selected to form a sulfite-rich or sulfide-rich liquor in each of the trays which are brought to the bottom of the tower through the downcomer for removal from the tower.

Abstract: A heat pipe has an elliptical cross-section. Heat exchange fins are mounted to the heat pipe at the condenser end. The fins are galvanized on the heat pipe. Spacer pins can be used to support and space the heat exchange fins from each other. Internal spacers can be provided within the heat pipe to add support to the heat pipe structure for longer heat pipes.

Abstract: A diaphragm weld assembly for preventing fluid leakage from a flange. The diaphragm weld assembly has a flange having a platform, the platform having an opening and an annular weld pocket concentric with the opening, a diaphragm resting on the platform and having a ring extending from the bottom face of the diaphragm, the ring engaging with the opening, a weld bead formed in the annular weld pocket and welding the diaphragm to the flange, and a flange cover fastened to the flange. A method of creating the diaphragm weld assembly is also provided.

Abstract: A turret system is installed on an existing vessel such as an oil tanker. A portion of the existing structure, such as the center splice, is removed to leave an opening. A support structure is attached within the opening. The support structure includes a turret support structure. The turret structure is assembled within the turret support structure. Fluid piping is installed between the turret structure and the pipework of the vessel, including a manifold structure and a fluid swivel. The turret assembly is cladded for environmental protection. In one arrangement, the turret system is within the profile of the original vessel. In another arrangement, the turret system is external to the profile of the original vessel.