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    • 5. 发明专利
    • Apparatus and method for separation recovery of carbon dioxide
    • 二氧化碳分离回收装置及方法
    • JP2014079680A
    • 2014-05-08
    • JP2012228243
    • 2012-10-15
    • Jfe Steel CorpJfeスチール株式会社Nippon Steel & Sumitomo Metal新日鐵住金株式会社Nippon Steel & Sumikin Engineering Co Ltd新日鉄住金エンジニアリング株式会社Kobe Steel Ltd株式会社神戸製鋼所Nisshin Steel Co Ltd日新製鋼株式会社
    • SAIMA HITOSHIMOGI YASUHIROHARAOKA TAKASHI
    • B01D53/04C01B32/50C10K1/32
    • Y02A50/2342Y02C10/08Y02P20/152
    • PROBLEM TO BE SOLVED: To provide an apparatus and method for separation recovery of carbon dioxide, enabling the carbon dioxide to be separated and recovered from a material gas, without reducing the concentration and recovery rate of the carbon dioxide.SOLUTION: The apparatus for separation recovery of carbon dioxide includes: adsorption columns 11-13 filled with adsorbent for adsorbing the carbon dioxide; a material gas introduction pipe 14 for introducing a material gas containing the carbon dioxide into the adsorption columns; a cleaning gas supply pipe 19 for supplying the adsorption columns with a cleaning gas to increase a ratio of the carbon dioxide adsorbed by the adsorbent; a vacuum pump 16 for desorbing the carbon dioxide from the adsorbent; and a recovery gas exhaust pipe 18 for exhausting the carbon dioxide from the adsorption column as a recovery gas, the cleaning gas supply pipe supplying a portion of the exhausted carbon dioxide to the adsorption column as the cleaning gas. The apparatus for separation recovery of carbon dioxide further includes dehumidifying means 21 for dehumidifying a portion of the exhausted carbon dioxide, and a portion of the dehumidified carbon dioxide is introduced into the adsorption column as the cleaning gas via the cleaning gas supply pipe 19.
    • 要解决的问题:提供二氧化碳分离回收的装置和方法,使得二氧化碳能够从原料气体中分离和回收,而不会降低二氧化碳的浓度和回收率。解决方案:分离装置 回收二氧化碳包括:填充有用于吸附二氧化碳的吸附剂的吸附塔11-13; 用于将含有二氧化碳的原料气体引入吸附塔的原料气体导入管14; 用于向吸附塔提供清洁气体以增加吸附剂吸附的二氧化碳的比例的清洁气体供给管19; 用于从吸附剂中解吸二氧化碳的真空泵16; 以及用于从作为回收气体的吸附塔排出二氧化碳的回收气体排出管18,所述清洁气体供给管将排出的二氧化碳的一部分供给到作为清洗气体的吸附塔。 另外,二氧化碳的分离回收装置还包括除湿二氧化碳的一部分的除湿装置21,一部分除湿二氧化碳作为清洗气体经由清洗气体供给管19被引入吸附塔。
    • 9. 发明专利
    • Apparatus and method for separation and recovery of gas
    • 气体分离和回收装置及方法
    • JP2014050815A
    • 2014-03-20
    • JP2012198115
    • 2012-09-10
    • Jfe Steel CorpJfeスチール株式会社Sumitomo Seika Chem Co Ltd住友精化株式会社
    • HARAOKA TAKASHISAIMA HITOSHIMOGI YASUHIROMIYAKE MASAKUNITAKADA YOSHINORI
    • B01D53/04
    • PROBLEM TO BE SOLVED: To raise a rate of recovery of a target gas to be separated, without increasing a cycle time.SOLUTION: A gas separation recovery apparatus 11 includes adsorption towers 2A-2F with adsorbent filled therein and exhaust devices 3A-3C. The gas separation recovery apparatus has the adsorption towers equal to the number of partitions of one cycle for allocating each of an absorption step, a cleaning step and a desorption step to one cycle under the condition that the percentage of the desorption step in one cycle is greater than one-third, according to the cycle unit obtained by dividing this one cycle with an integer greater than or equal to 4 in equal allocation of time, as one cycle is set from absorption initiation to desorption termination. The adsorption towers have cycle schedules in which the initiation time of one cycle is different from each other. At least a portion of the target gas to be separated, which is exhausted from the adsorption tower in the desorption step, is guided to the adsorption tower in the cleaning step as a cleaning gas, between mutual adsorption towers in which the initiation time of the desorption step is equal to the initiation time of the cleaning step in the cycle schedule.
    • 要解决的问题:提高待分离的目标气体的回收率,而不增加循环时间。解决方案:气体分离回收装置11包括吸附塔2A-2F,其中填充有吸附剂和排气装置3A-3C。 气体分离回收装置具有等于一个循环的分隔数的吸附塔,用于将吸收步骤,清洗步骤和解吸步骤分配到一个循环,条件是一个循环中的解吸步骤的百分比为 大于三分之一,根据通过在相同的时间分配中将该一个周期除以一个大于或等于4的整数而获得的循环单元,因为从吸收开始到解吸终止设置一个循环。 吸附塔具有循环计划,其中一个循环的起始时间彼此不同。 在解吸步骤中从吸附塔排出的待分离的目标气体的至少一部分在清洁步骤中作为清洁气体在相互吸附塔之间被引导至吸附塔,在相互吸附塔之间, 解吸步骤等于循环进度中清洗步骤的启动时间。