Comparative analysis of residence and diffusion times in rotating bed used for biogas upgrading

Liang Zhang; Akiber Chufo Wachemo; Hairong Yuan; Yunzhi Pang; Xiujin Li

doi:10.1016/j.cjche.2018.02.016

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Comparative analysis of residence and diffusion times in rotating bed used for biogas upgrading

Energy, Resources and Environmental Technology | Updated：2026-01-06

- Comparative analysis of residence and diffusion times in rotating bed used for biogas upgrading
- Comparative analysis of residence and diffusion times in rotating bed used for biogas upgrading
- 中国化学工程学报（英文版） 2018年26卷第10期页码：2148-2152
- Affiliations：
  
  2 Department of Water Supply and Environmental Engineering, Arba Minch University, P. O. Box 21, Arba Minch,Ethiopia
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.02.016
  中图分类号：
- 纸质出版：2018
- Accepted：
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Liang Zhang, Akiber Chufo Wachemo, Hairong Yuan, 等. Comparative analysis of residence and diffusion times in rotating bed used for biogas upgrading[J]. 中国化学工程学报（英文版）, 2018,26(10):2148-2152.

Liang Zhang, Akiber Chufo Wachemo, Hairong Yuan, Yunzhi Pang, Xiujin Li. Comparative analysis of residence and diffusion times in rotating bed used for biogas upgrading[J]. Chin.J.Chem.Eng., 2018, 26(10): 2148-2152.
Liang Zhang, Akiber Chufo Wachemo, Hairong Yuan, 等. Comparative analysis of residence and diffusion times in rotating bed used for biogas upgrading[J]. 中国化学工程学报（英文版）, 2018,26(10):2148-2152. DOI： 10.1016/j.cjche.2018.02.016.

Liang Zhang, Akiber Chufo Wachemo, Hairong Yuan, Yunzhi Pang, Xiujin Li. Comparative analysis of residence and diffusion times in rotating bed used for biogas upgrading[J]. Chin.J.Chem.Eng., 2018, 26(10): 2148-2152. DOI： 10.1016/j.cjche.2018.02.016.

摘要

Abstract

Rotating bed can be used in desorption operation of biogas upgrading as a new technology. For enough time to desorb

it is important to study the relationship between the residence time of liquid in rotating bed and the material diffusion time of liquid droplet in desorption process. By theoretical deduction

the exponential relation between residence time and liquid flow rate and rotational speed and kinematic viscosity is obtained. By analyzing the solution of nonlinear partial differential equation

the time law of material diffusion in the droplet is obtained. Moreover

by comparing the residence and diffusion times

the diffusion time can be within or out of residence time range

which has a direct relationship to rotational speed and liquid flow. By experiment

the comparison between residence and diffusion times is more realistic when the rotational speed is higher.

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