Abstract: This invention provides a system (10) for generating energy from waste material. The system comprises a first batch processing oven (12) for generating syngas and a second batch processing oven (14) for generating syngas. At least one thermal treatment chamber (20) heats the syngas after it is produced, and an energy converter (22) converts energy from the syngas to electrical energy.

Abstract: This invention provides a system (10) for generating energy from waste material. The system comprises a first batch processing oven (12) for generating syngas and a second batch processing oven (14) for generating syngas. At least one thermal treatment chamber (20) heats the syngas after it is produced, and an energy converter (22) converts energy from the syngas to electrical energy.

Abstract: A seal for sealing together first and second tubular members (12,14) rotatable relative to one another is provided. The seal comprises first and second sealing portions (18, 20) securable respectively to said first and tubular members (12,14) and having respective first and second abutment surfaces (40, 26) slidingly engageable with one another. In response to the application of axial pressure to the first abutment surface (40) through the second abutment surface (26), the abutment surface of the first sealing portion (18) is deflectable axially of the second sealing portion (20) in the direction of the axial pressure to retain the abutment surfaces in sealing contact.