一种用于活化费托合成催化剂的多级流化床反应器及连续活化工艺
By using a multi-stage fluidized bed reactor and a continuous activation process, the problem of low activation efficiency of iron-based catalysts in Fischer-Tropsch synthesis was solved, achieving efficient and uniform catalyst activation, shortening the activation cycle and improving processing capacity.
CN119346010BActive Publication Date: 2026-07-17ZHEJIANG UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG UNIV
- Filing Date
- 2024-10-18
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing Fischer-Tropsch synthesis iron-based catalyst activation technologies suffer from low efficiency due to intermittent operation and long activation cycles.
Method used
A multi-stage fluidized bed reactor and continuous activation process are adopted. The catalyst to be activated is continuously added through the catalyst feed pipe, and the activation gas is continuously introduced through the bottom and upper gas distributors to achieve continuous activation of the catalyst. The loose gas inlet pipe is combined to promote the discharge of the activated catalyst.
Benefits of technology
It improved activation efficiency, shortened activation cycle, ensured uniform reduction of catalyst and activation quality, reduced backmixing, and increased throughput per unit time.
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Figure CN119346010B_ABST
Abstract
本发明公开了一种用于活化费托合成催化剂的多级流化床反应器及连续活化工艺。多级流化床反应器主体为一均匀直筒形的立式容器，沿反应器轴向布置1～4层塔板型构件，将反应器分割成2～5级密相反应区；相邻反应区之间分别配有气相通道和催化剂通道；密相反应区下部配有气体分布器，合成气原料气相经气体分布器连续鼓入反应区；粉体费托合成催化剂由第一级密相反应区连续加料，自上而下逐级流过多级反应区，催化剂与合成气发生还原反应活化。与普通单级流化床反应器相比，粉体费托合成催化剂在多级流化床反应器内的连续流动可有效减少返混，停留时间分布更窄，使催化剂活化更均匀，有效提高了费托反应过程的效率。
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