Method of circulating a liquid and reactor for carrying out the method

For circulating a liquid to be gasified in a reactor, between the intake chamber 3 of a circulating pump and the gas-bubble-filled reactor chamber there is arranged a screen 2, from which bubble discharging pipes 5 are arranged above the liquid level in the intake chamber, through which pipes part or all of the circulated liquid is fed back to the intake chamber. For gasifying the liquid in a central pipe underneath the circulating pump there are fins 7 which are bevelled away on both sides and connected to a pressurized gas supply. For limiting the gas pressure at the gasifying point, there is provided a gas distribution chamber 6, which is open at the bottom, whereby the breaking away of the down pipe flow due to an excess amount of admixed gas is prevented. ...