Abstract: The invention relates to a membrane pipe module, said module comprising a cylindrical housing containing a plurality of tubular membrane sections which extend in the axial direction and are interconnected at the ends thereof, forming longer tubular membrane sections. Said cylindrical housing comprises a heatable chamber, on one or both sides, comprising U-shaped connection pipes which are arranged therein and are guided through a separating wall between the chamber and the housing, with the two open ends thereof, and respectively connect two adjacent open tubular membrane sections, forming a membrane loop.

Abstract: Process for the continuous manufacture of tubular composite or multi-layer membranes comprising a porous sub layer (support layer), mainly determining the mechanical strength of the membrane, and adjacent to the support layer a second layer of a material of different chemical nature (separation layer), mainly determining the separation properties of the membrane, winding a respective flat sheet composite membrane lengthwise or spirally around a mandrel or shaft, into a tube or hose, the separating layer of the composite membrane facing to the inside of the tube or hose, gluing or welding the edges which may overlap or form a butt seam, and applying to said seam or overlapping area from the inside of the tube or hose a sealing material which can be solidified, and finally solidifying said sealing material.

Abstract: The invention relates to a membrane pipe module, said module comprising a cylindrical housing containing a plurality of tubular membrane sections which extend in the axial direction and are interconnected at the ends thereof, forming longer tubular membrane sections. Said cylindrical housing comprises a heatable chamber, on one or both sides, comprising U-shaped connection pipes which are arranged therein and are guided through a separating wall between the chamber and the housing, with the two open ends thereof, and respectively connect two adjacent open tubular membrane sections, forming a membrane loop.

Abstract: Process for the continuous manufacture of tubular composite or multi-layer membranes comprising a porous sub layer (support layer), mainly determining the mechanical strength of the membrane, and adjacent to the support layer a second layer of a material of different chemical nature (separation layer), mainly determining the separation properties of the membrane, winding a respective flat sheet composite membrane lengthwise or spirally around a mandrel or shaft, into a tube or hose, the separating layer of the composite membrane facing to the inside of the tube or hose, gluing or welding the edges which may overlap or form a butt seam, and applying to said seam or overlapping area from the inside of the tube or hose a sealing material which can be solidified, and finally solidifying said sealing material.

Abstract: Apparatus for separating fluid mixtures includes plural tubular membranes parallel to each other. Each of the membranes has an inner lumen and the flow direction is from the exterior of the membrane to the inner lumen. Each tube is surrounded by a larger diameter feed tube and a gap is formed between the outside service of the tubular membrane and the inside service of the feed tube. This annulus provides a feed flow channel for the fluid mixture along the outer surface of the tubular membrane. The annulus has first and second ends connected to entrance and discharge ports respectively of the feed flow. The inner lumen of the tubular membranes are sealed from the annular gap and provided with a connection for the discharge of the permeate flow.

Abstract: Apparatus for separating of fluid mixtures. A number of tubular membranes are arranged parallel to each other. Each of the membranes has an inner lumen and the flow direction is from the exterior of the membrane to the inner lumen. Each tube is surrounded by a larger diameter feed tube and a gap is formed between the outside service of the tubular membrane and the inside service of the feed tube. This annulus provides a feed flow channel for the fluid mixture along the outer surface of the tubular membrane. The annulus has a first and second end each being connecting with means for entrance and discharge respectively of the feed flow and with means to direct the feed flow through the channels. The inner lumen of the tubular membranes are sealed from the annular gap and provided with a connection for the discharge of the permeate flow.