公开(公告)号：WO2011099844A1

公开(公告)日：2011-08-18

申请号：PCT/NL2010/050069

申请日：2010-02-12

Applicant: STAMICARBON B.V. ,  ELIASSON, Johanna ,  ERIKSSON, Ylva ,  Holmstrom David ,  Hulteberg, P. Christian ,  KARLSSON, Hans, T. ,  Nilsson Filip ,  Ojala, Frida ,  VAN DEN TILLAART, Johan, Albert, Arno

Inventor： ELIASSON, Johanna ,  ERIKSSON, Ylva ,  Holmstrom David ,  Hulteberg, P. Christian ,  KARLSSON, Hans, T. ,  Nilsson Filip ,  Ojala, Frida ,  VAN DEN TILLAART, Johan, Albert, Arno

IPC: C07C273/04

CPC classification number: C07C273/04 ,  B01D53/58 ,  B01D2253/102 ,  B01D2253/108 ,  Y02A50/2346 ,  Y02P20/142 ,  Y02P20/582

Abstract: 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.

Abstract translation: 公开了一种从尿素生产设备的精加工部分的废气中除去氨的方法。 该方法包括使废气与能够物理吸附氨，特别是活性炭或沸石的固体吸附剂接触。 因此，将吸附有氨的固体吸附剂与气体分离，并通过将氨溶解在萃取液中，优选水中再生。 在从固体吸附剂中分离水后，后者在该过程中被重新使用。

公开(公告)号：WO2011099844A8

公开(公告)日：2012-08-16

申请号：PCT/NL2010050069

申请日：2010-02-12

Applicant: STAMICARBON ,  ELIASSON JOHANNA ,  ERIKSSON YLVA ,  HOLMSTROM DAVID ,  HULTEBERG P CHRISTIAN ,  KARLSSON HANS T ,  NILSSON FILIP ,  OJALA FRIDA ,  VAN DEN TILLAART JOHAN ALBERT ARNO

Inventor： ELIASSON JOHANNA ,  ERIKSSON YLVA ,  HOLMSTROM DAVID ,  HULTEBERG P CHRISTIAN ,  KARLSSON HANS T ,  NILSSON FILIP ,  OJALA FRIDA ,  VAN DEN TILLAART JOHAN ALBERT ARNO

IPC: C07C273/04

CPC classification number: C07C273/04 ,  B01D53/58 ,  B01D2253/102 ,  B01D2253/108 ,  Y02A50/2346 ,  Y02P20/142 ,  Y02P20/582

Abstract: 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.

Abstract translation: 公开了一种从尿素生产设备的精加工部分的废气中除去氨的方法。 该方法包括使废气与能够物理吸附氨，特别是活性炭或沸石的固体吸附剂接触。 因此，将吸附有氨的固体吸附剂与气体分离，并通过将氨溶解在萃取液中，优选水中再生。 在从固体吸附剂中分离水后，后者在该过程中被重新使用。