公开(公告)号：EP1346951B1

公开(公告)日：2007-08-01

申请号：EP01271327.7

申请日：2001-12-14

申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.

发明人： YAMAMOTO, M., c/o Sumitomo Seiko Chemicals Co. Ltd ,  SASANO, H., c/o Sumitomo Seika Chemicals Co. Ltd ,  HARUNA, K., c/o Sumitomo Seika Chemicals Co. Ltd

IPC分类号： C01B13/02 ,  B01D53/053

CPC分类号： B01D53/0476 ,  B01D53/053 ,  B01D2253/108 ,  B01D2256/12 ,  B01D2257/102 ,  B01D2259/4003 ,  B01D2259/40045 ,  B01D2259/40066 ,  B01D2259/401 ,  C01B13/0259 ,  C01B2210/0046

摘要： A method of enriching and recovering gaseous oxygen contained in raw gas by a single tower PSA method performed by using a single adsorption tower (1) having adsorbent filled therein, comprising the repeated cycles of an adsorption process for leading the raw gas into the adsorption tower (1), a detaching process for detaching the unnecessary compositions adsorbed to the adsorbent from the adsorbent, a cleaning process for exhausting the residual gas remaining in the adsorption tower (1) by leading cleaning gas into the adsorption tower (1), and a pressure-building process for raising a pressure in the adsorption tower (1), the detaching process comprising a process for recovering the quasi-oxygen enriched gas in the adsorption tower (1) at the end of the adsorption process, the cleaning process comprising a process for leading, as cleaning gas, a part of the quasi-oxygen enriched gas in a recovery tank (3) to the adsorption tower (1), the pressure building process comprising a process for leading the quasi-oxygen enriched gas remaining in the recovery tank (3) to the adsorption tower (1).

公开(公告)号：EP1346951A1

公开(公告)日：2003-09-24

申请号：EP01271327.7

申请日：2001-12-14

申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.

发明人： YAMAMOTO, M., c/o Sumitomo Seiko Chemicals Co. Ltd ,  SASANO, H., c/o Sumitomo Seika Chemicals Co. Ltd ,  HARUNA, K., c/o Sumitomo Seika Chemicals Co. Ltd

IPC分类号： C01B13/02 ,  B01D53/053

CPC分类号： B01D53/0476 ,  B01D53/053 ,  B01D2253/108 ,  B01D2256/12 ,  B01D2257/102 ,  B01D2259/4003 ,  B01D2259/40045 ,  B01D2259/40066 ,  B01D2259/401 ,  C01B13/0259 ,  C01B2210/0046

摘要： A process is provided for recovering oxygen-rich gas by enriching gaseous oxygen contained in crude gas by a single-tank PSA process which utilizes a single adsorption tower (1) loaded with an adsorbent. In the process, a cycle is repeated which includes an adsorption step of introducing crude gas into the adsorption tower (1), a desorbing step of desorbing unnecessary components from the adsorbent, a washing step of introducing washing gas into the adsorption tower (1) for discharging the remaining gas from the adsorption tower (1), and a pressurizing step of raising the internal pressure of the adsorption tower (1). The desorbing step includes recovering semi-enriched oxygen gas existing in the adsorption tower (1) after finishing of the adsorption for retention in a recovery tank (3). The washing step includes introducing part of the semi-enriched oxygen gas existing in the recovery tank (3) into the adsorption tower (1) as the washing gas. The pressurizing step includes introducing the rest of the semi-enriched oxygen gas retained in the recovery tank (3) into the adsorption tower (1).

摘要翻译： 提供一种通过利用装载有吸附剂的单个吸附塔（1）的单槽PSA方法富集粗气体中所含的气态氧来回收富氧气体的方法。 在该过程中，重复循环，其包括将粗气体引入吸附塔（1）的吸附步骤，从吸附剂中解吸不必要成分的解吸步骤，将洗涤气体引入吸附塔（1）的洗涤步骤， 用于从吸附塔（1）排出剩余气体，以及提高吸附塔（1）的内压的加压步骤。 解吸步骤包括在完成吸附后回收存在于吸附塔（1）中的半富氧氧气以保留在回收罐（3）中。 洗涤步骤包括将存在于回收罐（3）中的部分半富氧气体作为洗涤气体引入吸附塔（1）。 加压步骤包括将保留在回收罐（3）中的剩余的半富氧氧气引入吸附塔（1）。