Circulating reaction zones in a packed-bed loop reactor

Auto-cyclic reactor: Design and evaluation for the removal of unburned methane from emissions of natural gas engines

“…Long period oscillations (22 h) for counter-current reactor were simulated by Ben-Tulliah et al (2003). Oscillations due to traveling (creeping) front were described and observed earlier by Lauschke and Gilles (1994) for a packed-bed circulation loop reactor designed to employ traveling reaction zone.…”

High-Temperature Transients in Catalytic Fixed-Bed Reactors

“…8; see also Luss and Amundson, 1967;Root and Schmilz, 1970;Lauschke and Gilles, 1994;Yakhnin et αϊ, 1995b)'°. Eventually, this process saturates at the dynamical state of the reactor characterized by sustained, periodic wave activity ( Fig.…”

“…Another example of using high-temperature transients to technological advantage is the circulating reaction zone reactor described by Lauschke and Gilles (1994). It consists of a co-current heat exchanger and a fixed-bed loop; both the heat exchanger and the reactor loop are filled with catalyst.…”

“…Amplified perturbations are then fed back into the reactor with the result that selfsustained traveling waves circulate round the reactor and feedback loop (Lauschke and Gilles, 1994;Yakhnin and Menzinger, I995b). This scenario is different from that associated with 'normal' (termed in this context absolute) instability where the system leaves an (absolutely) unstable state and never returns to it.…”

Spatiotemporal patterns in thermokinetic models of cross‐flow reactors

“…mixed system. Recently, Lauschke andGilles, 1994 andHua Ž . et al 1998 analyzed and observed complex dynamics in a loop-reactor heat exchanger using a reaction with simple bistable kinetics.…”