2024
Study about the significance of feedstock characteristics (moisture, volatile matter, fixed carbon and ash contents) during the particle feeding stage for downdraft gasification of biomass waste: Lambda powder dosing equipment (LAMBDA DOSER 0.2L) was used for particle feeding (date palm waste, olive pomace, sewage sludge) and gasifier flow rate, power rating & storage time were tested.
Khan, S., Adeyemi, I., Moustakas, K., & Janajreh, I. (2024). Investigating the characteristics of biomass wastes via particle feeder in downdraft gasifier. Environmental Research, 118597.
https://doi.org/10.1016/j.envres.2024.118597
Keywords: Biomass gasification, feedstock dosing, feedstock preheating, gasification parameters, response surface, syngas
2023
Lithium-Ion Battery: Feeding of precursor powder (Silicon & ferrocene [Fe(C5H5)2]; 1 g/min) into surface-wave-sustained (SWS) plasma column (core temperature >4000 K)
Jie, Z., Zhang, Z., Bai, X., Ma, W., Zhao, X., Chen, Q. & Zhang, G. (2023). Surface-wave-sustained plasma synthesis of graphene@Fe–Si nanoparticles for lithium-ion battery anodes. Appl. Phys. Lett. 11 September 2023; 123 (11): 113902.
https://doi.org/10.1063/5.0159269
Keywords: plasma synthesis, graphene@Fe-SI, nanoparticles, lithium-ion battery, anodes, silicon, Ferrocen, LIB, precursor, swirling flow, SWS plasma
2022
Experimental channel for magnetic particles separation: In the first step, the fly ash was dosed by a LAMBDA dosing system with 1L vessel (mounted above a tray in the middle of the cross-section of the channel) into the horizontal channel and got dispersed by compressed air (3 bar) flowing from a flat nozzle onto the tray.
Czech, T. (2022). Morphology and chemical composition of magnetic particles separated from coal fly ash. Materials, 15(2), 528.
https://doi.org/10.3390/ma15020528
Keywords: fly ash, magnetic particles, electrostatic precipitator, coal combustion
Powder dosing of Al2O3 and other dried sieved particles in a closed-loop aerosol generator: The particles were dosed with a volumetric powder doser LAMBDA DOSER 0.2 L into a 1⁄4” T-piece where the powder got picked up by a stream of compressed air (5 L/min) and guided as aerosol through the installation stream.
Prüfert, C., Beitz, T., Reich, O. & Löhmannsröben, H.-G. (2022). Inline process analysis of copper-bearing aerosols using laser-induced breakdown spectroscopy, laser-induced incandescence and optical imaging. Spectrochimica Acta Part B: Atomic Spectroscopy 197 (2022) 106527.
https://doi.org/10.1016/j.sab.2022.106527
Keywords: LIBS, LII, Aerosol. photoacoustics, Stroboscopic imaging, Minerals
Coal particles were introduced into the reactor through a N2-purged microprocessor-controlled programmable powder pump feeder (HI-DOSER, LAMBDA) positioned above the reactor tube...The advantage of this powder pump feeder is that the feeding amount is relatively uniform, avoiding the clogging of the feeder and instability of the gas production.
Dai, T., Xu, C., Zhang, Q., Liu, X., Chang, Z. & Yang, Y. (2022). Experimental study of the solar-driven steam gasification of coal in an improved updraft combined drop-tube and fixed-bed reactor. Energy Conversion and Management, Volume 259,2022,115571,ISSN 0196-8904.
https://doi.org/10.1016/j.enconman.2022.115571
Keywords: Solar-driven gasification, Updraft reactor, Syngas production, Parameter analysis
The integral dissolution heat of the acid-base neutralization was measured in a stirred reactor using a reaction calorimeter (RC1e, Mettler Toledo Ltd.) while LAMBDA DOSER continuously fed acid or base as solids: 23.6 g/min citric acid; 30 g/min NaOH; 21 g/min NaOH; 14.8 g/min NaOH; 7.2 g/min NaOH
Ran, Z., Ni, L., Pan, Y., Chen, Y., Wang, J., Jiang, J. & Shu, C-M. (2022). Safety Criteria for Solid–Liquid Heterogeneous Systems in Semibatch Reactors. ACS Omega 2022 7 (24), 21207-21219
https://doi.org/10.1021/acsomega.2c02139
Keywords: Chemical reactions, Dissolution, Liquids, Safety
Catalytic pyrolysis experimental setup: A programmable feeder (LAMBDA DOSER 1L) dispensed plastic pellets, typically at a feeding rate of 120 g/h, into aquartz reactor, which contained 1 kg of 8 mm silicon carbide balls. The ball bed was heated and maintained at 500 ◦C for all tests in this study bya programmable microwave heating system.
Zhou, N., Dai, L., Lyu, Y., Wang, Y., Li, H., Cobb, K., Chen, P., Lei, H. & Ruan, R. (2022). A structured catalyst of ZSM-5/SiC foam for chemical recycling of waste plastics via catalytic pyrolysis. Chemical Engineering Journal, Volume 440, 2022, 135836, ISSN 1385-8947.
https://doi.org/10.1016/j.cej.2022.135836
Keywords: ZSM-5; Silicon carbide foam; Catalyst scale up; Waste plastics; Catalytic pyrolysis; Catalyst stability
2021
Experimental design for NOx conversion, comprising a vertically-entrained reactor and gas monitoring systems: A calibrated electronic powder doser (Lambda Laboratory Instruments) feeds the recycled plastic (cryogenically pulverised, 150–355 μm) at a constant low feeding rate of 7 mg/min, through a water-cooled probe, into a quartz reactor housed in an electrically heated three-zone furnace.
Oluwoye, I., Zeng, Z., Mosallanejad, S., Altarawneh, M., Gore, J., & Dlugogorski, B. Z. (2021). Controlling NOx emission from boilers using waste polyethylene as reburning fuel. Chemical Engineering Journal, 411, 128427.
https://doi.org/10.1016/j.cej.2021.128427
Keywords: Plastic wastes, polyethylene, NOx control, reburning, boiler, economic analysis
Determination of the solubility of itaconic acid dosed with a LAMBDA DOSER 0.2L solids feeder controlled by the PLS
Holtz, A., Görtz, J., Kocks, C., Junker, M., & Jupke, A. (2021). Automated measurement of pH-dependent solid-liquid equilibria of itaconic acid and protocatechuic acid. Fluid Phase Equilibria, 532, 112893.
https://doi.org/10.1016/j.fluid.2020.112893
Keywords: solubility, pH shift crystallization, electrolyte influence, 2-Methylidenebutanedioic acid, 3,4-Dihydroxybenzoic acid
2020
Iron ore and lime feeding system: LAMBDA Hi-DOSER 1L powder dosing instrument manufactured by LAMBDA Laboratory Instruments, was used to charge the mixture of iron ore and additives fines continuously into the steel crucible during the test runs.
Naseri Seftejani, M. (2020). Reduction of hematite using hydrogen plasma smelting reduction (Doctoral Thesis, Montanuniversitaet Leoben).
https://pure.unileoben.ac.at/en/publications/reduction-of-hematite-using-hydrogen-plasma-smelting-reduction (2024 Feb. 26)
Keywords of the doctoral thesis: Hydrogen, plasma, hematite, iron oxide reduction
Laboratory Equipment for the hydrogen plasma smelting reduction (HPSR) process: The powder dosing system LAMBDA Hi-DOSER 0.2L was used to introduce continuous ~3 g/min Carajas hematite iron ore with the gas (40 % hydrogen in argon) through the hollow graphite electrode (HGE, inner diameter 5 mm).
Zarl, M. A., Farkas, M. A., & Schenk, J. (2020). A study on the stability fields of arc plasma in the HPSR process. Metals, 10(10), 1394.
https://doi.org/10.3390/met10101394
Keywords: Arc plasma, arc stability, smelting reduction, iron ore, hydrogen reduction
The feeder LAMBDA DOSER was placed on the top of the DTF to continuously and uniformly feed the pulverized coal with a flow rate of 0.6 to 0.7 g/min. Aims to investigate the hydropyrolysis behavior of pulverized bituminous coal in a drop-tube furnace (DTF) with a temperature of 800–1000 °C.
Gao, R., Dou, B., Chang, Q., Xu, J., Dai, Z., Yu, G., & Wang, F. (2020). Effect of temperature and hydrogen on product distribution and evolution of char structure during pyrolysis of bituminous coal in a drop tube furnace. Shanghai Engineering Research Center of Coal Gasification, East China University of Science and Technology, Shanghai 200237, PR China.
https://doi.org/10.1016/j.fuel.2020.117078
Keywords: Hydropyrolysis; DTFT; Tar composition; Char structure evolution.
The solid powder feeding system LAMBDA Hi-DOSER 1L was used to feed the premixed iron ore and lime continuously into the plasma arc zone during the arc operation. The powder dispenser consists of a dosing unit and a powder distributor coupled to a stepping motor to control the number of turns per minute and accordingly the dispensing rate.
Seftejani, M. N., Schenk, J., Spreitzer, D., & Zarl, M. A. (2020). Slag Formation during Reduction of Iron Oxide Using Hydrogen Plasma Smelting Reduction. Materials 2020, 13, 935;
https://doi.org/10.3390/ma13040935
Keywords: slag; basicity; hydrogen plasma; smelting reduction; iron oxide; plasma arc; hydrogen utilisation; degree of reduction; hematite
2019
Alumina Feeding: During electrolysis, alumina (aluminum oxide) was continuously fed to the electrolyte with dosing equipment supplied by LAMBDA Laboratory Instruments. The LAMBDA DOSER was adjusted to continuously feed about 70 - 80% of the alumina needed to perform electrolysis at 100 % current efficiency.
Gunnarsson, G., Óskarsdóttir, G., Frostason, S., & Magnússon, J. H. (2019). Aluminum electrolysis with multiple vertical non-consumable electrodes in a low temperature electrolyte. In Light Metals 2019 (pp. 803-810). Springer International Publishing.
https://doi.org/10.1007/978-3-030-05864-7_98
Keywords: Aluminum electrolysis, Inert anode, Metal anode, TiB2 cathode, Low temperature electrolyte
Experimental setup: A) gas & solid feeding LAMBDA DOSER systems; B) reaction zone and electrical furnace; C) optical sensing system
Díaz, W., Toro, C., Balladares, E., Parra, V., Coelho, P., Reyes, G., & Parra, R. (2019). Spectral characterization of copper and iron sulfide combustion: A multivariate data analysis approach for mineral identification on the blend. Metals, 9(9), 1017.
https://doi.org/10.3390/met9091017
Keywords: copper concentrate; pyrometallurgy; flash smelting; combustion; classification; spectroscopy; PCA; SIMCA; PLS-DA; k-NN; support vector machines; rotary feeder; solid feeder
2016
Feeding operation of fed-batch enzymatic hydrolysis conducted by LAMBDA DOSER which received timely commands from LabVIEW (fuzzy logic control system)
Tai, C., Voltan, D. S., Keshwani, D. R., Meyer, G. E., & Kuhar, P. S. (2016). Fuzzy logic feedback control for fed-batch enzymatic hydrolysis of lignocellulosic biomass. Bioprocess and biosystems engineering, 39, 937-944.
https://doi.org/10.1007/s00449-016-1573-1
Keywords: Fuzzy Logic Control; Cellulose Conversion Rate; Acid-pretreated Corn Stover; Pretreated Corn Stover; Batch Enzymatic Hydrolysis; Enzyme Feeding; Pretreated Biomass; High Solid Loading; Corn Stover Sample; Glucose Concentration; Glucose Release Rate
2015
Pre-treated (over dried at 60 %, moisture content 2.38 %) lignocellulosic biomass feeding operation for fed-batch enzymatic hydrolysis was controlled by programmed LAMBDA powder DOSER
Tai, C., Keshwani, D. R., Voltan, D. S., Kuhar, P. S., & Engel, A. J. (2015). Optimal control strategy for fed‐batch enzymatic hydrolysis of lignocellulosic biomass based on epidemic modeling. Biotechnology and bioengineering, 112(7), 1376-1382.
https://doi.org/10.1002/bit.25552
Keywords: Biofuels; Enzymatic hydrolysis; Epidemic model; Fed-batch; Optimal control
2014
Established amounts of spherical and transparent glass particles simulating fuel droplets were introduced into the channel using LAMBDA powder dosing device
Bodoc, V., & Voicu, D. (2014, July). Experimental investigation of the infrared extinction limitations for vapor concentration measurement in a gas/particle flow. In 17th International Symposium on Applications of Laser Techniques to Fluid Mechanics.
HAL Id : hal-01079181 , version 1
https://hal.archives-ouvertes.fr/hal-01079181/document (2024 Feb 22)
Keywords: Light Scattering; Vapor Molar Concentration; Infrared Absorption; Laser Beam
Dried and sieved bagasse particles were fed by the calibrated feeder (LAMBDA DOSER) into the drop-tube trickle-bed reactor
Krüsi, M. (2014). Heat transfer enhancement in a solar biomass gasifier. Eidgenössische Technische Hochschule ETH Zürich (Nr. 21821).
https://doi.org/10.3929/ethz-a-010256755
Keywords: Alternative Energies; Biomass; Fuel Technology; Synthesis Gas
2013
The reactor is fitted with the LAMBDA POWDER DOSER to supply solid NaBH4 continuously
Muir, Sean S. (2013). Sodium borohydride production and utilisation for improved hydrogen storage. PhD Thesis. Australian Institute for Bioengineering and Nanotechnology, The University of Queensland.
https://doi.org/10.14264/uql.2016.540
2011
LAMBDA Powder DOSER used as a particle feeder for Drop Tube Reactor (DTR)
Hampp, F., & Janajreh, I. (2011). Development of a drop tube reactor to test and assist a sustainable manufacturing process. In Advances in Sustainable Manufacturing: Proceedings of the 8th Global Conference on Sustainable Manufacturing (pp. 141-148). Springer Berlin Heidelberg.
https://doi.org/10.1007/978-3-642-20183-7_21
Keywords: Gasification, Drop Tube Reactor, Sustainable Product, Development, Small Scale Experiments, Simulation Assisted Design
2012
Copper chloride fed into the quartz reactor by LAMBDA Powder Feeder for producing carbon-coated copper nanoparticles by vapor-phase reduction
Eiroma, K., Forsman, J., Hult, E.-L., Auvinen, A., Sipiläinen-Malm, T., Alastalo, A., Tapper, U., Leppäniemi, J., Mattila, P., Lyyränen, J., Sarlin, J., Jokiniemi, J., & Mössmer, S. (2012). Water-Based Carbon-Coated Copper Nanoparticle-Fluid Formation of Conductive Layers at Low Temperature by Spin Coating and Inkjet Deposition. Journal of Imaging Science and Technology, 56(4), 40501-1-40501-10 (10).
https://doi.org/10.2352/J.ImagingSci.Technol.2012.56.4.040501
Keywords: Sedimentation, deposition, copper chloride, nanoparticles, Ethylene glycol, carbon, vapour phase reduction, porous alumina, CNT
2011
Continuous feeding of Copper chloride powder on alumina (Al2O3) pellet bed within a quartz glass nanoparticle reactor to develop Carbon coated copper nanoparticle Inkjet Fluid
Eiroma, K., Auvinen, A., Forsman, J., Hult, E. L., Jokiniemi, J., Koskela, P., Sarlin, J., Sipiläinen-Malm, T., & Tapper, U. (2011, January). Development of conductive carbon coated copper nanoparticle inkjet fluid. In NIP & Digital Fabrication Conference (Vol. 2011, No. 2, pp. 458-461). Society for Imaging Science and Technology.
https://citeseerx.ist.psu.edu/doc_view/pid/d22f2a68bdaaa4054fc32e50d30afa87ef2c185c (2024 Feb. 22)
PDF: https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=d22f2a68bdaaa4054fc32e50d30afa87ef2c185c (2024 Feb. 22)
Keywords: continuous, flow reactor, copper chloride, nanoparticles, gas phase, aluminium oxide, carbon nanotubes, CNT, inkjet, spin coating
2007
Timed particle additions using LAMBDA Powder DOSER to study the fabrication and evaluation of the ferroelectric reinforced metal matrix composites (FR-MMCs)
Poquette, B. D. (2007). Understanding Ferroelastic Domain Reorientation as a Damping Mechanism in Ferroelectric Reinforced Metal Matrix Composites (Doctoral dissertation, Virginia Tech).
https://hdl.handle.net/10919/29169 (2024 Feb. 22)
Keywords: Dispersion Strengthening, Electroforming, Electrodeposition, Electroless Plating, Metal Matrix Composites, Damping, Ferroelectric, Ferroelastic, Twinning