Biogas reactor and methods for producing biogas

A biogas reactor comprising:

• a tank structure comprising a hollow pipe profile helically wound in a spiral arrangement to form a wall having a double-layer structure enclosing a tubular reactor space arranged inside the tank structure in which an organic matter can be placed to form biogas, wherein a spiral hollow space exists within the double-layer structure of the wall to accommodate a heat-transfer medium to influence a temperature of the organic matter placed in the tubular reactor space, wherein the tank structure includes an inner wall having a surface facing the tubular reactor space that is one of at least partially coated and at least partially sheathed to increase wear and/or smoothness of the inner wall surface;
• connections to feed the organic matter to the tubular reactor space and to remove the organic matter from the tubular reactor space;
• and
• at least one connection to remove biogas from the tubular reactor space.

A biogas reactor comprising:

• a tank structure comprising a hollow pipe profile helically wound in a spiral arrangement to form a wall having a double-layer structure enclosing a tubular reactor space arranged inside the tank structure in which an organic matter can be placed to form biogas, wherein a spiral hollow space exists within the double-layer structure of the wall to accommodate a heat-transfer medium to influence a temperature of the organic matter placed in the tubular reactor space;
• connections to feed the organic matter to the tubular reactor space and to remove the organic matter from the tubular reactor space;
• at least one connection to remove biogas from the tubular reactor space;
• and
• bulkheads spaced apart along a length of the tubular reactor space and attached to an upper inner surface of the tank structure forming the tubular reactor space, so that when a surface height of organic matter in the tubular reactor space is sufficient to seal against a lower extremity of the bulkheads, two or more chambers are formed separated from each other by the bulkheads.

A biogas reactor comprising:

• a tank structure comprising a hollow pipe profile helically wound in a spiral arrangement to form a wall having a double-layer structure enclosing a tubular reactor space arranged inside the tank structure in which an organic matter can be placed to form biogas, wherein a spiral hollow space exists within the double-layer structure of the wall to accommodate a heat-transfer medium to influence a temperature of the organic matter placed in the tubular reactor space;
• connections to feed the organic matter to the tubular reactor space and to remove the organic matter from the tubular reactor space;
• at least one connection to remove biogas from the tubular reactor space;
• a mixer coupled to the tubular reactor space and comprising a rotation shaft arranged in a longitudinal direction of the tubular reactor space;
• and blades attached to the rotation shaft and extending in a radial direction of the tubular reactor space;
• and
• bulkheads spaced apart along a length of the tubular reactor space and attached to an upper inner surface of the tubular structure forming the tubular reactor space, so that when a surface height of organic matter in the tubular reactor space is sufficient to seal against a lower extremity of the bulkheads, two or more chambers are formed separated from each other by the bulkheads, and wherein the blades are attached to the rotation shaft at least at locations of the bulkheads and are arranged to create a partitioning of the tubular reactor space and to keep the bulkheads clean by wiping the bulkheads.