Download or read book A Rotating Disk Study on the Rates of Calcite Dissolution at 25 C written by Eric Charles Schuttringer and published by . This book was released on 1984 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Rotating Disk Study on the Rates of Calcite Dissolution at 25 Degrees Centigrade written by Eric Charles Schuttringer and published by . This book was released on 1984 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Rotating Disk Study of the Mechanisms of Calcite Dissolution in the Presence of Environmentally Benign Polyaspartic Acid written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Rotating Disk Study of the Mechanisms of Calcite Dissolution in the Presence of Environmentally Benign Polyaspartic Acid written by Kathie Lee Burns and published by . This book was released on 2002 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: Keywords: polyelectrolytes, environmentally friendly, scale inhibition, scale dissolution, calcium carbonate dissolution, dissolution kinetics.
Download or read book Applied Matrix Acidizing of Carbonate Reservoir written by Ehsan Khamehchi and published by Springer Nature. This book was released on with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1986 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Public Roads of Tennessee written by and published by . This book was released on 1906 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SPE Production Operations written by and published by . This book was released on 2009 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Journal of Canadian Petroleum Technology written by and published by . This book was released on 2009 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Calcite Dissolution Kinetics and Solubility in Na Ca Mg Cl Brines of Geologically Relevant Composition at 0 1 to 1 Bar PCO2 and 25 to 80 C written by Dwight Kuehl Gledhill and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Sedimentary basins can contain close to 20% by volume pore fluids that are commonly classified as brines. These fluids can become undersaturated with respect to calcite as a result of processes such as migration, dispersive mixing, or anthropogenic injection of CO2. This study measured calcite solubility and dissolution rates in geologically relevant Na-Ca-Mg-Cl synthetic brines (35 to 200 g L−1 TDS). In brines 50 g L−1 TDS, the EQPITZER calculated calcium carbonate ion activity product (IAP) at steady-state was in reasonable agreement ("10%) with the thermodynamic solubility constant for calcite (K[subscript]c). However, the IAP systematically exceeded K[subscript]c in more concentrated brines. The deviation was strongly correlated with calcium concentration and also was observed in magnesium-free solutions. This is interpreted as an uncertainty in the carbonate ion activity coefficient, and minor adjustment in stoichiometric association constants (K*[subscript]M2+CO0[over]3) for the CaCO0[over]3 or MgCo0[over]3 ion pairs would correct for the error. The dissolution rate dependency on brine composition, pCO2 (0.1 to 1 bar), and temperature (25.0 to 82.5 °C) was modeled using the empirical rate equation R = k(1-[omega]0 [superscript]n where R is the rate, k and n are empirical fitting terms, and [omega] the degree of disequilibrium with respect to calcite. When [omega] was defined relative to an apparent kinetic solubility, n could be assumed first-order over the range of [omega] investigated ([omega] = 0.2 to 1.0). Rates increased with increasing pCO2 as did the sensitivity to brine concentration. At 0.1 bar, rates were nearly independent of concentration (k = 13.0 "2.0 x 10−3 moles m−1 hr−1). However, at higher CO2 partial pressures rates became composition dependent and the rate constant, k, was shown to be a function of temperature, pCO2, ionic strength, and calcium and magnesium activity. The rate constant (k) can be estimated from a multiple regression (MR) model of the form [unable to replicate formula]. A relatively high activation energy (E[subscript]a = 20 kJ mol−1) was measured, along with a stirring rate independence suggesting the dissolution is dominated by surface controlled processes at saturation states [omega] 0.2 in these calcium-rich brines. These findings offer important implications to reaction-transport models in carbonate-bearing saline reservoirs.
Download or read book Thermodynamics and Kinetics of Water Rock Interaction written by Eric H. Oelkers and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 70 of Reviews in Mineralogy and Geochemistry represents an extensive review of the material presented by the invited speakers at a short course on Thermodynamics and Kinetics of Water-Rock Interaction held prior to the 19th annual V. M. Goldschmidt Conference in Davos, Switzerland (June 19-21, 2009). Contents: Thermodynamic Databases for Water-Rock Interaction Thermodynamics of Solid Solution-Aqueous Solution Systems Mineral Replacement Reactions Thermodynamic Concepts in Modeling Sorption at the Mineral-Water Interface Surface Complexation Modeling: Mineral Fluid Equilbria at the Molecular Scale The Link Between Mineral Dissolution/Precipitation Kinetics and Solution Chemistry Organics in Water-Rock Interactions Mineral Precipitation Kinetics Towards an Integrated Model of Weathering, Climate, and Biospheric Processes Approaches to Modeling Weathered Regolith Fluid-Rock Interaction: A Reactive Transport Approach Geochemical Modeling of Reaction Paths and Geochemical Reaction Networks
Download or read book Geochemistry of Geologic CO2 Sequestration written by Donald J. DePaolo and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 77 of Reviews in Mineralogy and Geochemistry focuses on important aspects of the geochemistry of geological CO2 sequestration. It is in large part an outgrowth of research conducted by members of the U.S. Department of Energy funded Energy Frontier Research Center (EFRC) known as the Center for Nanoscale Control of Geologic CO2 (NCGC). Eight out of the 15 chapters have been led by team members from the NCGC representing six of the eight partner institutions making up this center - Lawrence Berkeley National Laboratory (lead institution, D. DePaolo - PI), Oak Ridge National Laboratory, The Ohio State University, the University of California Davis, Pacific Northwest National Laboratory, and Washington University, St. Louis.
Download or read book Frontiers in Geochemistry written by Russell Harmon and published by John Wiley & Sons. This book was released on 2011-03-03 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a contribution to the International Year of Planet Earth arising from the 33rd International Geological Congress, held in Oslo, Norway during August 2008. The first section of the book considers aspects of geochemical processes which led to the development of the solid Earth as it is today. The second portion of the book shows how the rapidly-evolving analytical tools and approaches presently used by geochemists may be used to solve emerging environmental and other societal problems. This unique collection of reviews, with contributions from a range of internationally distinguished scientists, will be invaluable reading for advanced students and others interested in the central role geochemistry in the earth sciences.
Download or read book SPE Production and Facilities written by and published by . This book was released on 2004 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1989 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modelling Calcite Dissolution in a Rotating Disc Reaction Vessel written by Camelia Yazdani and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The carbonate system is ubiquitous in nature, playing a role in many natural and industrial processes. For calcite dissolution, the kinetics and mass transport of the dissolved species reflect both the chemistry of the bulk, and the conditions at the dissolving interface. We formulate the dissolution problem as a set of coupled convection- reaction-diffusion equations that is not only consistent with the bulk chemistry, but is also connected with a Stefan condition for dissolution interface, treating it as a free boundary. The substantial difference in the order of magnitude of the various reaction rates decouples the system. The relatively slow speed of the moving interface allows for a quasi-steady solution. The model reproduces the experimentally observed behaviour without the need to introduce additional reactions occurring at the reacting surface.
Download or read book Biogeochemistry of Chelating Agents written by Bernd Nowack and published by . This book was released on 2005 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chelating agents are in widespread use in technical and industrial applications. They are used extensively to control metal speciation in the pulp and paper industry, in photographical processes, in cooling waters, the oil industry, and in the nuclear industry. Further, they are incorporated into industrial and household cleaners, personal care products, and foodstuffs. As a result of such extensive use, anthropogenic chelating agents are ubiquitous in the environment. Due to their strong interactions with metals they have received considerable attention due to the potential for adverse effects on ecosystems and health. The goal of this book is to bring together researchers from a variety of disciplines - chemistry, environmental chemistry, soil chemistry, microbiology, phytoremediation, bioremediation, wastewater treatment, industry (pulp and paper, textile, oil production) - to present different aspects of the unique chemical properties of these compounds. This book describes the biogeochemistry of these important compounds, from their structure and speciation, through their behavior in natural systems, to their use in enhanced phytoremediation and their removal through biodegradation.
