Importance

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Abstract

A seal assembly is provided that transitions from an expanded configuration to a retracted configuration. In the expanded configuration, the seal assembly forms a non-permeable seal between a rotatable rigid body and a non-rotatable rigid body, the non-permeable seal preventing the entry of oxygen into a reactor drum having a low oxygen environment and/or leakage of gases produced in the low oxygen environment of the reactor drum to the surrounding environment. In the retracted configuration, the rotatable rigid body is secured relative to the non-rotatable rigid body such that relative rotation is prevented. The first rigid body may be translatable relative to the second rigid body to reduce a length of the seal assembly and facilitate rapid removal and/or replacement of the seal assembly from between adjacent components of a torrefaction, gasification, or pyrolysis system.

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First Claim