This paper presents the research efforts that has been carried out on control of gas absorbers/gas reactors. Also new approach to fuzzy control design for a gas absorber system has been introduced. The approach incorporates a linear state-estimation to generate the internal knowledge-base that stores input-output pairs. This collection of pairs is then utilized to build a feedback fuzzy controller. The closed-loop fuzzy control system is guaranteed to be asymptotically stable while manipulating

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... its time response. Simulation studies are carried out to illustrate the gas absorber system performance.