Hydrate-based CO2 (carbon dioxide) capture from IGCC (integrated gasification combined cycle) synthesis gas using bubble method with a set of visual equipment
Hydrate-based CO2 (carbon dioxide) capture from IGCC (integrated gasification combined cycle) synthesis gas using bubble method with a set of visual equipment
复制标题
使用气泡法和一套可视化设备从 IGCC（整体气化联合循环）合成气中捕集水合物 CO2（二氧化碳）
DOI：
10.1016/j.energy.2012.06.021
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发表时间：
2012-08
期刊：
影响因子：
9
通讯作者：
Cai, Jing
中科院分区：
文献类型：
--
作者：
Xu, Chun-Gang;Li, Xiao-Sen;Lv, Qiu-Nan;Chen, Zhao-Yang;Cai, Jing
利用可视化实验装置，对整体煤气化联合循环（IGCC）合成气中CO2的鼓泡法水合物捕集进行了研究。气泡由设备底部的气泡板产生。通过可视化设备，可视化地捕获水合物形成和水合物形状。随着气泡从反应器底部向顶部的移动，气体水合物首先从气泡周围的气液边界生成，然后水合物逐渐长大并堆积在气泡底部，形成水合物颗粒。天然气水合物的形状受气体流量的影响。在低气体流量下，水合物为针状晶体，而在高气体流量下，水合物为细砂状晶体。气泡尺寸和气体流量对水合物法CO2分离过程有明显的影响。实验结果表明，在3.0 MPa、274.15 K条件下，气泡直径为50 μm、气体流量为6.75 mL/min/L时，对IGCC合成气中CO2的捕集效果较好。
The hydrate-based carbon dioxide (CO2) capture from the integrated gasification combined cycle (IGCC) synthesis gas using the bubble method is investigated with a set of visual equipment in this work. The gas bubble is created with a bubble plate on the bottom of the equipment. By the visual equipment, the hydrate formation and the hydrate shape are visually captured. With the move of the gas bubble from the bottom to the top of the reactor, gas hydrate forms firstly from the gas–liquid boundary around the bubble, then the hydrate gradually grows up and piles up in the bottom side of the bubble to form a hydrate particle. The gas hydrate shape is affected by the gas flow rate. The hydrate is acicular crystal at the low gas flow rate while the hydrate is fine sand-like crystal at the high gas flow rate. The bubble size and the gas flow rate have an obvious impact on the hydrate-based CO2separation process. The experimental results show the gas bubble of 50 μm and the gas flow rate of 6.75 mL/min/L are ideal for CO2capture from IGCC synthesis gas under the condition of 3.0 MPa and 274.15 K.
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