Bubble size fractal dimension, gas holdup, and mass transfer in a bubble column with dual internals

• 作者: Hao Lu Honglai Liu Hualin Wang Junjie Wang Lei Wang Qiang Yang Xiao Xu
• 来源期刊: 中国化学工程学报（英文版）
• 年，卷（期）: 2020,（12）
• 所属期刊栏目: Fluid Dynamics and Transport Phenomena
• 页码范围: 2968-2976
• 页数: 9页
• 语种: 英文

摘要

As the scale of residual oil treatment increases and cleaner production improves in China, slurry bubble column reactors face many challenges and opportunities for residual oil hydrogenation technology. The internals devel-opment is critical to adapt the long-term stable operation. In this paper, the volumetric mass transfer coefficient, gas holdup and bubble size in a gas-liquid up-flow column are studied with two kinds of internals. The gas holdup and volumetric mass transfer coefficient increase by 120％and 42％when the fractal dimension of bubbles increases from 0.56 to 2.56, respectively. The enhanced mass transfer processing may improve the coke suppres-sion ability in the slurry reactor for residual oil treatment. The results can be useful for the exploration of reacting conditions, scale-up strategies, and oil adaptability. This work is valuable for the design of reactor systems and technological processes.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Xiao Xu		1	0	0.0	0.0
2	Junjie Wang		1	0	0.0	0.0
3	Qiang Yang		1	0	0.0	0.0
4	Lei Wang		1	0	0.0	0.0
5	Hao Lu		1	0	0.0	0.0
6	Honglai Liu		1	0	0.0	0.0
7	Hualin Wang		1	0	0.0	0.0