Effects of bed aging on temperature signals from fixed-bed adsorbers during industrial operation
Journal article, 2020

The capacity of adsorber beds used in industrial-scale temperature-swing adsorption diminishes over time due to bed aging. Here, we present industrial data on the temperature signals from fixed-bed adsorbers using activated carbon designed to remove benzene and other impurities from the gas produced in biomass gasification. The aging of the adsorber beds proceeds due to irreversible adsorption of trace species and manifests itself via two simultaneous effects: a decrease in the availability of active adsorption sites over time and an increase in the overall thermal mass of the bed. Both effects tend to dampen the temperature response of the beds during operation, implying that they are easily confounded. Model descriptions of bed aging should account for both effects.

Activated carbon

Benzene

Adsorption

Gas cleaning

Industrial-scale

Author

Adam Jareteg

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Dario Maggiolo

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Anton Larsson

Göteborg Energi AB

Henrik Thunman

Chalmers, Space, Earth and Environment, Energy Technology

Srdjan Sasic

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Henrik Ström

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Results in Engineering

2590-1230 (ISSN)

Vol. 8 100156

Optimization and increased energy efficiency in indirect gasification gas cleaning

Swedish Energy Agency, 2016-03-08 -- 2019-12-31.

Driving Forces

Sustainable development

Subject Categories

Energy Engineering

Chemical Process Engineering

Chemical Engineering

Fluid Mechanics and Acoustics

DOI

10.1016/j.rineng.2020.100156

More information

Latest update

12/25/2020