| 摘要 |
There is disclosed a gasifier 500 comprising: a gasification chamber 518; a feedstock inlet 520 opening into the gasification chamber 518 for introducing feedstock material and primary combustible gas (e.g. char and pyrolysis gas); a gas outlet 523 opening into the gasification chamber; and a flow path between the feedstock inlet 520 and the gas outlet 523 which passes through the gasification chamber 518, a portion of the flow path having an upwards component within the gasification chamber so that particulate material entrained in the primary combustible gas separates from the primary combustible gas and falls towards the bed of feedstock material. There is also disclosed a gasifier 500 comprising: a chamber wall 510 defining a gasification chamber 518; an ash grate 526 disposed in the gasification chamber 518; and a rotary crusher 532 disposed in the gasification chamber 518 above the ash grate 532 and provided with at least one crushing element 536; wherein in use rotation of the crusher causes agglomerated feedstock material in the bed to break apart between the crushing element and an opposing surface. |
