Reaktoren für Dreiphasen-Reaktionen: Suspensionsreaktoren

Mörs, Friedemann; Graf, Frank; Kolb, Thomas

doi:10.1007/978-3-662-56434-9_33

Cited by 2 publications

(2 citation statements)

References 89 publications

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“…51 Therefore, at a nominal load (u G = 0.029 m/s), the reactor is probably still operated in the homogeneous regime although solids often shift regime transition to lower superficial gas velocities. 52 Generally, within the homogeneous regime, a higher reactant conversion than within the heterogeneous regime can be expected. 45 However, for more profound information, more experimental data is required on this specific system.…”

Section: Preparation and Startupmentioning

confidence: 99%

Methanation Pilot Plant with a Slurry Bubble Column Reactor: Setup and First Experimental Results

2022

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As a part of various research projects, a methanation pilot plant with a slurry bubble column reactor (SBCR) was commissioned and operated. The plant has a nominal load of a 100 kW methane output (lower calorific value) with a reactor diameter of 260 mm and a reactor length of 2500 mm. First experimental data on the steady-state and dynamic operation of catalytic CO2 methanation are presented. Steady-state results from laboratory-scale studies (<1 kW methane output) published previously were confirmed qualitatively at the pilot plant eliminating wall effects unavoidable in small-scale reactors. As predicted, high H2/CO2 ratios increase CO2 conversion, but excess H2 apparently promotes decomposition of the liquid phase (dibenzyltoluene) used in the bubble column reactor. Additionally, due to the increased reactor dimensions compared to laboratory equipment, it was now possible to observe a thermal response of the SBCR under conditions of rapid gas load changes characteristic of envisaged power-to-gas applications with volatile renewable electricity. As the predicted robustness of the SBCR-concept toward a dynamic operation with fast load changes was demonstrated successfully, it offers an attractive alternative to the established fixed-bed methanation technologies with their inherent limitations on dynamic operability.

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Section: Preparation and Startupmentioning

confidence: 99%

Methanation Pilot Plant with a Slurry Bubble Column Reactor: Setup and First Experimental Results

2022

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“…Slurry phase reactions offer the advantage of a better temperature control and catalyst utilization because smaller catalyst particles can be applied. 22 In both process operation modes, copper containing catalysts, such as CuO/ZnO/Al 2 O 3 , 18 copper-chromite 19 or RANEY®-copper 21 have been applied so far. However, copper sintering at comparably low temperatures of below 300 °C is a known effect in supported catalysts, such as CuO/ZnO, 23 demonstrating the weak bonding of copper species within the solid matrix.…”

Section: Introductionmentioning

confidence: 99%