REMOVAL OF AROMATIC HYDROCARBONS FROM COKE-OVEN GAS BY ABSORPTION

摘要

The invention relates to a method of removing aromatic hydrocarbons from coke-oven gas. The coke-oven gas is contacted with a wash liquid in a gas scrubber, and aromatic hydrocarbons are separated by absorption from the coke-oven gas. Subsequently the wash liquid enriched with aromatic hydrocarbons is heated, and the aromatic hydrocarbons are stripped from the wash liquid using water vapor. After cooling the wash liquid is finally returned to the gas scrubber. According to the invention biodiesel is used as the wash liquid.