Method and apparatus for processing filling gas from a coke oven battery
AssigneeKrupp-Koppers GmbH
InventorsJoachim Polenz, Hans Wagner
Life of this patent
Estimating the term…
Abstract
An improved coke oven battery and an improved method for production of coke and byproducts are provided. The filling gas escaping during the filling of the oven chambers with coal is initially rendered inert by admixing flue gas. Then the resulting gas mixture of filling gas and flue gas is withdrawn via a conduit fed with flushing liquor from the coke oven gas off-take main and is added to the raw coke oven gas after the coke oven gas off-take main. The tar and coal containing flushing liquor coming from the filling gas conduit is fed back to the coke oven gas off-take main after removal of the tar.
Claims21
An improved method for production of coke and byproducts comprising
- filling with coal a coke oven chamber of a coke oven battery having horizontal chambers and a coke oven gas off-take main;
- withdrawing the filling gas generated during coking of said coal generated during filling separately from the coke oven gas;
- adding flue gas to the filling gas for rendering the resulting gas mixture of the filling gas and the flue gas relatively inert;
- withdrawing said gas mixture through a filling gas conduit fed with flushing liquor withdrawn from the coke oven gas off-take main;
- admixing said gas mixture of the filling and flue gas to the raw coke oven gas;
- feeding the tar and coal containing flushing liquor coming from said filling gas conduit into a thick tar separator;
- and
- returning the flushing liquor after separation of tar and coal to the flushing liquor coming from the gas off-take main.
An improved coke oven battery comprising
- a coke oven;
- a gas off-take main of the coke oven for collecting fluid products from the coke oven;
- a pipe connected to the gas off-take main for carrying the raw coke oven gas;
- a thick tar separator of the coke oven battery connected to the gas off-take main;
- a flue channel connected to the coke oven for removing flue gas;
- a filling port at the top of the coke oven;
- a first conduit connected to the coke oven at the location of the development of coke oven filling gas for withdrawing the filling gas separately from the coke oven gas and having an output port;
- an input port connected to the coke oven for adding flue gas to the filling gas for providing a relatively inert gas mixture;
- a second conduit running from the flue channel to the input port for feeding flue gas;
- a gas-liquid conduit disposed at a slight angle connected on one side to the output port for receiving the relatively inert gas mixture and connected on the other side to the pipe carrying the raw coke oven gas;
- and connected on the upper side to the thick tar separator for receiving flushing liquor and connected on the lower side to a thick tar separator for providing flushing liquor loaded with tar to the thick tar separator.
Dependencies are inferred from the claim text.