Disclosed is a method for the removal of ammonia from the off-gas of a finishing section of a urea production plant. The method comprises contacting the off-gas with a solid adsorbent capable of physically adsorbing ammonia, particularly activated carbon or zeolite. Thereupon the solid adsorbent having ammonia adsorbed thereon is separated from the gas and regenerated by dissolving ammonia in an extraction liquid, preferably water. After separating the water from the solid adsorbent, the latter is re-used in the process.
申请公布号
EP2534129(A1)
申请公布日期
2012.12.19
申请号
EP20100704017
申请日期
2010.02.12
申请人
STAMICARBON B.V.
发明人
ELIASSON, JOHANNA;ERIKSSON, YLVA;HOLMSTROM, DAVID;HULTEBERG, P. CHRISTIAN;KARLSSON, HANS, T.;NILSSON, FILIP;OJALA, FRIDA;VAN DEN TILLAART, JOHAN, ALBERT, ARNO