Abstract Experimental measurements of the reaction sulfur dioxide and oxygen with limestones have demonstrated substantial influence geologic origin stone, its porosity particle size, gaseous concentration dioxide, temperature on course conversion (that is, degree utilization limestone content particles as a sorbent for dioxide). A mathematical model including intraparticle transport chemical within (grain theory) has been developed to simulate this sorption reaction.

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReaction of Sulfur Dioxide with Limestone and the Influence Pore StructureMiloslav Hartman Robert W. CoughlinCite this: Ind. Eng. Chem. Process Des. Dev. 1974, 13, 3, 248–253Publication Date (Print):July 1, 1974Publication History Published online1 May 2002Published inissue 1 July 1974https://doi.org/10.1021/i260051a010RIGHTS & PERMISSIONSArticle Views429Altmetric-Citations103LEARN ABOUT THESE METRICSArticle Views are COUNTER-compliant sum full...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFree Settling of Nonspherical ParticlesMiloslav Hartman, Otakar Trnka, and Karel SvobodaCite this: Ind. Eng. Chem. Res. 1994, 33, 8, 1979–1983Publication Date (Print):August 1, 1994Publication History Published online1 May 2002Published inissue 1 August 1994https://pubs.acs.org/doi/10.1021/ie00032a012https://doi.org/10.1021/ie00032a012research-articleACS PublicationsRequest reuse permissionsArticle Views1024Altmetric-Citations83LEARN ABOUT THESE...

The decomposition rate of sodium hydrogen carbonate (NaHCO3) into (Na2CO3) was determined as weight loss at ambient pressure and elevated temperatures up to 230 °C. A particularly slow increasing-temperature procedure small samples fine powders were employed minimize heat mass transfer intrusions. Efficient removal the gaseous products eliminated possible equilibrium constraints. near-first-order reaction equation has been presented for also verified by data collected experiment in a...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfluence of Porosity Calcium Carbonates on Their Reactivity with Sulfur DioxideMiloslav Hartman, Jaroslav Pata, and Robert W. CoughlinCite this: Ind. Eng. Chem. Process Des. Dev. 1978, 17, 4, 411–419Publication Date (Print):October 1, 1978Publication History Published online1 May 2002Published inissue 1 October 1978https://pubs.acs.org/doi/10.1021/i260068a006https://doi.org/10.1021/i260068a006research-articleACS PublicationsRequest reuse...

Fluidized-bed combustors are capable of destroying effectively a variety organic wastes such as sewage sludge. Because its very high content water, mechanically dewatered sludge cannot be incinerated on own. Peculiar characteristics dried include proportion volatile matter and contents the fuel-bound nitrogen ash. The experimental apparatus consisted three fundamental parts: an electrically heated reactor, 0.98-m height 0.0936-m diameter; facility for continuous withdrawal analysis gas...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPressure fluctuations in gas-fluidized beds at elevated temperaturesKarel Svoboda, Jan Cermak, Miloslav Hartman, Jiri Drahos, and Konstantin SeluckyCite this: Ind. Eng. Chem. Process Des. Dev. 1983, 22, 3, 514–520Publication Date (Print):July 1, 1983Publication History Published online1 May 2002Published inissue 1 July 1983https://pubs.acs.org/doi/10.1021/i200022a029https://doi.org/10.1021/i200022a029research-articleACS PublicationsRequest reuse...

Abstract A novel approach was used for the on‐line characterization of state a fluidized bed. The treatment technique using Fast Fourier Transform measured pressure fluctuations developed to create plots describing evolution bed behavior from fixed pneumatic transport. new triad quantities proposed are: divide ratio (degree dominancy) amplitude spectrum, square root spectrum power fluctuations, and gas velocity. demonstrated on fluidization solids having wide size distribution composed...

To determine unbiased rates of the decomposition KHCO3, slowly increasing- and constant-temperature TGA methods were employed with small, finely ground samples. Such reaction provides a novel, porous, highly reactive sorbent for noxious and/or malodorous gases. The bicarbonate commences decomposing at 364 K, maximum rate reaction, attained 421.9 amounts to 5.73 × 10–4 1/s. Taking advantage Schlömilch function, an Arrhenius-type relationship is developed by integral method: activation energy...

Pyrolysing agricultural crop residues and other biomass constitutes a newer method of transforming often difficult, waste materials into novel type soil amendment/additive. Simultaneously, this process also makes it possible to exploit part the energy released in production. Biochar, viewed as solid product pyrolysis, is remarkable, porous material, rich carbon. Two residues, such wheat barley straw, were selected for experimental studies. The results indicate that practical temperature...

The decomposition rate of aluminum chloride hexahydrate (AlCl3·6H2O) was measured as weight loss at ambient pressure and elevated temperatures up to 270 °C. Such incomplete thermal produces a porous reactive basic [Al2O3·2HCl·2H2O or Al2(OH)4Cl2·H2O] which dissolves in water give poly(aluminum chloride) used an efficient flocculation agent. A slowly rising temperature method very small sample masses, minimize heat mass transfer intrusions, were employed determine intrinsic reaction rates....

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfluence of temperature on incipient fluidization limestone, lime, coal ash, and corundumKarel Svoboda Miloslav HartmanCite this: Ind. Eng. Chem. Process Des. Dev. 1981, 20, 2, 319–326Publication Date (Print):April 1, 1981Publication History Published online1 May 2002Published inissue 1 April 1981https://pubs.acs.org/doi/10.1021/i200013a022https://doi.org/10.1021/i200013a022research-articleACS PublicationsRequest reuse permissionsArticle...

Abstract An experimental study has been performed of the reactions occurring when reactive particles calcium oxide are exposed to sulfur dioxide bearing flue gas. Using a differential, fixed‐bed reactor, kinetic measurements have made in temperature range 170 and 580°C. A relatively simple correlation based on amassed data proposed. This allows estimation reaction rate as function temperature, conversion solids concentration gas phase. The proposed law equation makes it possible predict...

Ceramsite is an inert, heat-resistant, porous material that made via the calcination of carbonaceous claystone in oxidizing environment. Its basic mineral constituents are mullite, hematite, quartz, and kaolinite. particles have been proven to be a very practical convenient bed for performing various chemical reactions high-temperature fluidized beds. Experimental measurements were performed determine minimum fluidization velocities terminal (entrainment) beds ceramsite at ambient...

A thermal gravimetric method was employed to explore the course of dehydration Na2CO3 · 10 H2O, and Na3CO3 H2O particles. Experimental data were amassed both in temperature-increasing constant temperature mode. Very small sample masses used an effort eliminate effect heat mass transfer processes on rate reaction. Kinetic equations Arrhenius type proposed for two stages tested against results collected by experiment.