The utility model discloses a carbon membrane contactor four methanol washing device, including vertical and horizontal fiber film contactor water separation tank; the top cavity fiber film contactor is provided with a liquid distributor, the middle position is filled in the cavities within the core fiber film contactor; the liquid distributor is connected to the feed tube after four carbon ether and a circulating water pipe, circulating water pipe and a water circulating pump and recycled water inlet pipe are connected in sequence; water separation tank tank is arranged at the inner wall of water separating tank coalescence plate above the separation zone is externally connected with a methanol carbon four cylinder, the separation zone below the liquid tank is connected with an external package separating washing; washing separation the liquid tank is connected with an external package containing methanol water discharging pipe and / or recycled water inlet pipe; the utility model has the advantages of using fiber film contactor instead of packing tower or plate tower and four carbon sedimentation tank, a step The two processes of demethanol extraction and two phase separation by water washing extraction are completed, and the area and investment of the equipment can be saved by more than 60%.
【技术实现步骤摘要】
一种碳四液膜接触器水洗脱甲醇的装置
本技术涉及一种针对于化工领域中的碳四液膜接触器水洗脱甲醇的方法以及其装置,特别是涉及一种碳四液膜接触器水洗脱甲醇的装置。
技术介绍
甲基叔丁基醚(MTBE)是一种重要的汽油辛烷值调和组分,调合比例一般为8%~15%。MTBE醚化原料为甲醇和异丁烯,目前异丁烯主要来源于液化气中碳四组分。由液化气气分装置得到的碳四组分中除异丁烯外,还含有丁烷、异丁烷等组分,MTBE醚化反应后,未反应的丁烷、异丁烷等轻烃称之为醚后碳四,从MTBE醚化装置出来的醚后碳四还同时混合有未反应的甲醇,其含量一般在2%wt以下。为提高醚后碳四的附加值,目前炼油企业对醚后碳四进行芳构化,但醚后碳四中的甲醇会降低芳构化催化剂的催化性能,缩短催化剂单程寿命,从而降低了芳构化装置的经济效益。因此,还必须脱除醚后碳四中的甲醇。当前,醚后碳四脱甲醇采用最多的工艺为填料塔或板式塔水洗萃取技术,一般设计有一台尺寸较大的萃取塔,碳四从塔中下部进,水从塔中上部进,两相为逆流方式,利用甲醇与水互溶、水与碳四易于分离的性质,两相在萃取塔内填料或塔板剪切作用下混合接触,甲醇萃取到水中, ...
【技术保护点】
一种碳四液膜接触器水洗脱甲醇装置,其特征在于:包括竖直向的纤维液膜接触器(1)和卧式的水洗分离罐(4),通过法兰装配固定;所述纤维液膜接触器(1)的腔内顶部设置有液体分配器(2),腔内中间位置填充有液膜接触器纤维内芯(3);所述液体分配器(2)外接有醚后碳四进料管(8)和循环水管(10),所述循环水管(10)与循环水泵(7)和再生水进料管(11)相连接;所述水洗分离罐(4)的罐体上内壁设置有水洗分离罐聚结板(5),所述水洗分离罐聚结板(5)把罐体空间分割成待分离区(41)和分离区(42),所述纤维液膜接触器(1)设置在所述待分离区(41),所述分离区(42)的上方外接有脱甲 ...
【技术特征摘要】
1.一种碳四液膜接触器水洗脱甲醇装置,其特征在于:包括竖直向的纤维液膜接触器(1)和卧式的水洗分离罐(4),通过法兰装配固定;所述纤维液膜接触器(1)的腔内顶部设置有液体分配器(2),腔内中间位置填充有液膜接触器纤维内芯(3);所述液体分配器(2)外接有醚后碳四进料管(8)和循环水管(10),所述循环水管(10)与循环水泵(7)和再生水进料管(11)相连接;所述水洗分离...
【专利技术属性】
技术研发人员:徐振华,
申请(专利权)人:宁波传致石化科技有限公司,
类型:新型
国别省市:浙江,33
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