In this article,ethylene hydrogenation over Pt-Sn/A1_2O_3 catalyst is used asthe model reaction. The kinetic models and parameter discrimination of steadystate and non-steady state reactions are studied using external recycle reactor anddifferential pulse reactor,respectively;
The influence of internal diffusion of benzene on the kinetics of complete oxidation of benzene over Pt/Al2O3 catalyst has been investigated by the external circulation reactor. The reaction took place in the kinetic region when the catalyst with 0. 45-0. 60 mm was used.
The different types of reactor for hydrogenation such as reactor with complex agitator, ring type reactor, circulation reactor, horizontal continual hydrogenation reactor and three phase fixed bed reactor are also reviewed.
The macro-kinetics of the F-T synthesis in the CO+H_2 two-stage process for making gasoline is studied on a potassium-promoted precipitted Fe catalyst with industrial size in an internal recirculation reactor.
The kinetics of the reaction was studied using the internal recirculation reactor permitting to eliminate temperature and concentration gradient Studies were performed in the temperature range of 380～465℃ at concentration or sulfur diokiodce mole fraction Xso2=2%～7%.
The circulating ratio of the recirculation reactor,which is widely applied to homogeneous reaction,reflects the macroscopical mixing degree of the substances,and utilizing optimum circulating ratio can effectively adjust the concentration of the substance at the reactor entrance and reduce the reactor volume and the equipment investment.
Hydrodynamics and mass transfer in a modified three-phase airlift loop reactor
This configuration has likewise been developed into many different forms, including: (a) Concentric tube airlift (2); (b) external loop airlift (3); (c) jet loop reactor (4); and (d) propeller loop reactor (4).
To optimize the fed-batch processes of glycerol fermentation in different reactor states, typical bioreactors including 500-mL shaking flask, 600-mL and 15-L airlift loop reactor, and 5-L stirred vessel were investigated.
Flow mixing model of liquid phase in an internal airlift loop reactor
Residence time distribution (RTD) analysis of liquid phase was conducted in an internal airlift loop reactor (AL) and a bubble column (BC) with the tracer response technique.
An improved flow circulation reactor with reaction mixture quenching was used to study the direct oxidation of methane to formaldehyde at 600-770°C, a CH4/O2 volume ratio of 1: 1 in the starting mixture, and gas mixture flow rates of 0.4-2.0 l/h.
Influence of external circulation on sludge characteristics during start-up of internal circulation reactor
Rate constant of the three-body recombination of fluorine atoms in a closed flow circulation reactor has been measured using ESR data at T=77 K and pressures ranging within 133-532 Pa.
Kinetic regularities in catalytic disproportionation of methanethiol to dimethyl sulfide and hydrogen sulfide have been studied in a flow circulation reactor.
Kinetic studies of tetrahydrofuran reaction with H2S were carried out in a flow-circulation reactor.
subtilis (Konecny and Voser, 1977) in three types of reactors: A stirred tank and recirculation reactor, both operated in the batch mode under pH-stat conditions, and a continuous packed bed, operated with excess buffer in the feed.
The oxidation of propylene with air on silver catalysts of macropore structure has been studied both in a flow and an open recirculation reactor.
Catalytic conversions of diethylsilane (E2), triethylsilane (E3) and diethyldimethylsilane (E2M2) were examined at 373-573 K in a closed recirculation reactor by using various solid acid and base catalysts.
Temperature dependence in the 323-373 K temperature range in a pulse system was investigated, while a static recirculation reactor was used for hydrogen pressure dependence measurements.