移动床操作技术基础研究进展回顾

发布时间：2018-03-19 18:19

本文选题：移动床　切入点：流动特性　出处：《天然气化工(C1化学与化工)》2017年01期 　论文类型：期刊论文

【摘要】：移动床,是一种用以实现流体-固相接触的化工单元过程处理技术,固相移动速率低于流化床,且固相颗粒之间基本上无相对运动,因此兼具固定床和流化床的特点,其中流体以气体居多。移动床操作的缺点是控制固体颗粒的均匀下移比较困难,床层容易出现贴壁、空腔和架拱等非正常操作现象,受床的结构、操作条件、固体颗粒基本性质等影响。针对于床内流动特性、床的几何构型和固体相的基本性质等影响移动床操作的关键因素,主要综述了近20年来气固移动床操作技术的基础研究进展。最后,对移动床操作技术进行了展望。
[Abstract]:Moving bed is a chemical unit process processing technology used to realize fluid-solid contact. The solid phase moving rate is lower than that of fluidized bed, and there is basically no relative movement between solid particles, so it has the characteristics of both fixed bed and fluidized bed. The disadvantages of moving bed operation are that it is difficult to control the uniform downward movement of solid particles, the bed is prone to abnormal operation phenomena such as adhesion, cavity and arch, and the structure and operating conditions of the bed. In view of the flow characteristics in the bed, the geometric configuration of the bed and the basic properties of the solid phase, the key factors affecting the operation of the moving bed, such as the basic properties of the solid particles, and so on, are discussed. The basic research progress of gas-solid moving bed operation technology in recent 20 years is reviewed. Finally, the moving bed operation technology is prospected.
【作者单位】：中海油研究总院规划研究院;
【分类号】：TQ051.13

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