Plasma arc plasma gasification reactors do not require moving grates and the smaller volume of gases generated means that the plasma arc plasma gasification reactors can accommodate the required minimum residence times in a smaller volume. (Residence time – sometimes referred to as removal time – is the average amount of time that a particle spends in a particular system, which is important in hazardous waste or industrial waste processing to ensure that any toxic nature in the feedstock was exposed to the high temperatures generated within the plasma arc plasma gasification for a certain period of time).

Additionally, the smaller gas production and reducing environment (condition in which oxidation is prevented) within the plasma arc plasma gasification reactor does facilitate smaller sized air pollution control systems as a smaller volume of gas is required to be cleaned as compared to a combustion process.