Integrated monopropellant thruster [PDF]
, 1972 Application of vortex amplifier principles to throttling of monopropellant thrusters is described. Integration of flow control, catalyst bed, and thruster nozzle is accomplished by design of thruster. Diagrams of thrusters are provided to show details of
Mangion, C.
core +1 more source
Theoretical analysis of tracer method for the measurement of wetting efficiency [PDF]
, 2007 This work investigates the tracer technique for the measurement of catalyst wetting efficiency, f, in trickle-bed reactor. The model of Ramachandran et al.
Baussaron, Loïc +3 more
core +2 more sources
Performance of silica-supported copper oxide sorbents for SOx/NOx-removal from flue gas II. Selective catalytic reduction of nitric oxide by ammonia [PDF]
, 1992 The selective catalytic reduction (SCR) of nitric oxide by ammonia was studied for silica-supported copper oxide particles to be used as a sorbent/catalyst in a continuous process for the simultaneous removal of SOx and NOx from flue gases.
Edelaar, A.C.S. +4 more
core +2 more sources
Critical role of formaldehyde during methanol conversion to hydrocarbons
Nature Communications, 2019 The recognition of the importance of HCHO in methanol to olefins (MTO) makes it imperative to quantify its concentration in the reaction and distribution over the catalyst bed.
Yue Liu +6 more
doaj +1 more source
Gas and solid behaviours during defluidisation of Geldart-A particles [PDF]
, 2011 Bed collapsing experiments were carried out in a cold-air transparent column 192 mm in diameter and 2 m high. Typical Fluid Catalytic Cracking (FCC) catalyst with a mean particle size of 76 μm and a density of 1400 kg/m3 was used.
Andreux, Régis +3 more
core +2 more sources
Chimica Techno ActaTrickle bed reactors with solid catalyst pellets are important and widely used large-scale apparatuses in the chemical and oil refining industries. In order to reduce the effects of poisons on the catalyst bed and to extend the catalyst loading service ...
Ivan A. Mik +5 more
doaj +1 more source
Continuous proline catalysis via leaching of solid proline
Beilstein Journal of Organic Chemistry, 2011 Herein, we demonstrate that a homogeneous catalyst can be prepared continuously via reaction with a packed-bed of a catalyst precursor. Specifically, we perform continuous proline catalyzed α-aminoxylations using a packed-bed of L-proline.
Suzanne M. Opalka +2 more
doaj +1 more source
Vanadium oxide monolayer catalysts. I. Preparation, characterization, and thermal stability [PDF]
, 1979 Vanadium oxide catalysts of the monolayer type have been prepared by means of chemisorption of vanadate(V)-anions from aqueous solutions and by chemisorption of gaseous V2O3(OH)4.
Andreikov +38 more
core +2 more sources
Making Catalyst and Preparing Catalyst Bed for Hydrazine Decomposition in Low-Thrust Monopropellant Thrusters [PDF]
فناوری در مهندسی هوافضا, 2018 Monopropellant thruster of attitude control system is a requirement for the development and functionalization of satellites in space, which have expensive and high-tech technology.
Mohammad Reza Salimi, Hadiseh Karimaei
doaj
Modeling a Fluidized-Bed Reactor for the Catalytic Polymerization ff Ethylene: Particle Size Distribution Effects [PDF]
, 2005 Particle size distributions in the output stream of commercial, fluidized-bed reactors for ethylene polymerization are analyzed using a mathematical model.
Chiovetta, Mario Gabriel, Grosso, Walter
core