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Author: Migvia del C. Vidal Vázquez Publisher: ISBN: Category : Languages : en Pages :
Book Description
Flammability is an important factor of safe practices for handling and storage of liquid mixtures and for the evaluation of the precise level of risk. Flash point is a major property used to determine the fire and explosion hazards of a liquid, and it is defined as the minimum temperature at which the vapor present over the liquid at equilibrium forms a flammable mixture when mixed with air. Experimental tests for the complete composition range of a mixture are time consuming, whereas a mixture flash point can be estimated using a computational method and available information. The information needed for mixture flash point predictions are flashpoints, vapor pressures, and activity coefficients as functions of temperature for each mixture component. Generally, sufficient experimental data are unavailable and other ways of determining the basic information are needed. A procedure to evaluate the flash point of binary mixtures is proposed, which provides techniques that can be used to estimate a parameter that is needed for binary mixture flash point evaluations. Minimum flash point behavior (MFPB) is exhibited when the flash point of the mixture is below the flash points of the individual components of the mixture. The identification of this behavior is critical, because a hazardous situation results from taking the lowest component flash point value as the mixture flash point. Flash point predictions were performed for 14 binary mixtures using various G[superscript]ex models for the activity coefficients. Quantum chemical calculations and UNIFAC, a theoretical model that does not require experimental binary interaction parameters, are employed in the mixture flash point predictions, which are validated with experimental data. MFPB is successfully predicted using the UNIFAC model when there are insufficient vapor liquid data. The identification of inherent safety principles that can be applied to the flammability of binary liquid mixtures is also studied. The effect on the flash point values of three binary mixtures in which octane is the solute is investigated to apply the inherent safety concept.
Author: Migvia del C. Vidal Vázquez Publisher: ISBN: Category : Languages : en Pages :
Book Description
Flammability is an important factor of safe practices for handling and storage of liquid mixtures and for the evaluation of the precise level of risk. Flash point is a major property used to determine the fire and explosion hazards of a liquid, and it is defined as the minimum temperature at which the vapor present over the liquid at equilibrium forms a flammable mixture when mixed with air. Experimental tests for the complete composition range of a mixture are time consuming, whereas a mixture flash point can be estimated using a computational method and available information. The information needed for mixture flash point predictions are flashpoints, vapor pressures, and activity coefficients as functions of temperature for each mixture component. Generally, sufficient experimental data are unavailable and other ways of determining the basic information are needed. A procedure to evaluate the flash point of binary mixtures is proposed, which provides techniques that can be used to estimate a parameter that is needed for binary mixture flash point evaluations. Minimum flash point behavior (MFPB) is exhibited when the flash point of the mixture is below the flash points of the individual components of the mixture. The identification of this behavior is critical, because a hazardous situation results from taking the lowest component flash point value as the mixture flash point. Flash point predictions were performed for 14 binary mixtures using various G[superscript]ex models for the activity coefficients. Quantum chemical calculations and UNIFAC, a theoretical model that does not require experimental binary interaction parameters, are employed in the mixture flash point predictions, which are validated with experimental data. MFPB is successfully predicted using the UNIFAC model when there are insufficient vapor liquid data. The identification of inherent safety principles that can be applied to the flammability of binary liquid mixtures is also studied. The effect on the flash point values of three binary mixtures in which octane is the solute is investigated to apply the inherent safety concept.
Author: John Bond Publisher: Elsevier ISBN: 1483161250 Category : Science Languages : en Pages : 165
Book Description
Sources of Ignition: Flammability Characteristics of Chemicals and Products describes the flammability characteristics of substances and deals with the different sources of ignition. Case histories are presented for review and analysis. The book is comprised of six chapters and seven appendices. The introduction gives a basic description of the anatomy of fire and explosions, including the access to fuel and the interaction of oxygen and fuel. A description of the flammable limits of gases, dusts, mists, and mixtures and the method of estimating these follow. The text also explains the flash point of a substance and the method of calculating it, using citations from Fuji and Hermann. The ignition energy of a chemical, as well as how to estimate it using the method of Calcote et al., is also presented. The book explains that autoignition temperature of gases is dependent on different factors, such as time delay, oxygen concentration, and catalyst effects of materials, but may still be estimated citing Zabetakis, 1965 as reference. The formula is given in more detail. Finally, the energy sources for ignition are enumerated as mechanical, electrical, thermal, and chemical. The appendices deal with chemicals, self-heating substances, organic peroxides, substances prone to spontaneous combustions, unstable substances, flammability characteristics of dusts, and a checklist of possible sources of ignition. This book is beneficial to fire safety engineers, firemen, fire prevention maintenance administrators, fire hazard officers, and other personnel whose line of work is in fire safety and prevention.
Author: CCPS (Center for Chemical Process Safety) Publisher: John Wiley & Sons ISBN: 1118211669 Category : Technology & Engineering Languages : en Pages : 581
Book Description
Guidelines for Hazard Evaluation Procedures, 3rd Edition keeps process engineers updated on the effective methodologies that process safety demands. Almost 200 pages of worked examples are included to facilitate understanding. References for further reading, along with charts and diagrams that reflect the latest views and information, make this a completely accessible work. The revised and updated edition includes information not included in previous editions giving a comprehensive overview of this topic area.
Author: CCPS (Center for Chemical Process Safety) Publisher: John Wiley & Sons ISBN: 0470938048 Category : Technology & Engineering Languages : en Pages : 240
Book Description
Drawn from international sources, this book provides principles and strategies for the evaluation of chemical reactions, and for using this information in process design and management. A useful resource for engineers who design, start-up, operate, and manage chemical and petrochemical plants, the book places special emphasis on the use of state-of-the-art technology in theory, testing methods, and applications in design and operations.
Author: Hasan Orbey Publisher: Cambridge University Press ISBN: 9780521620277 Category : Science Languages : en Pages : 230
Book Description
Reviews the latest developments in a subject relevant to professionals involved in the simulation and design of chemical processes - includes disk of computer programs.
Author: Mihir Kumar Purkait Publisher: CRC Press ISBN: 100036240X Category : Science Languages : en Pages : 353
Book Description
Safety in process industries is of utmost necessity to ensure protection from hazards. The aim of this book is to elucidate the hazards and preventive measures for a few of such specific industrial processes. Starting with overview of the prevalent industrial accidents, types of hazards and safety provisions, the book contains nineteen chapters with each one of them consisting of a unique case study comprising of basic causes, results and discussion, and protective measures to be adopted to overcome such situation. Topics covered include caprolactam storage tank accident, fire explosion accident caused by static electricity, and human factors risk and management in process safety and so forth. Aimed at researchers, professionals, graduate students in Chemical Engineering, Safety Management, Risk Assessment, Chemical Process Safety, this book: Provides exhaustive coverage of industrial case studies on their hazards and safety issues in the process industry set-up. Includes quantitative discussion on new and existing technologies and methodologies. Explores high quality descriptive and quantified data for better visualization of each chapter. Gives detailed description on various industrial accidents, their related consequences and available safety/preventive measures. Discusses preventive measures taken by world class industries in their production plants.
Author: Migvia del C. Vidal Vázquez
Author: Migvia del C. Vidal Vázquez
Author: John Bond
Author: 
Author: CCPS (Center for Chemical Process Safety)
Author: 
Author: CCPS (Center for Chemical Process Safety)
Author: 
Author: Hasan Orbey
Author: Mihir Kumar Purkait
Author: Rebecca J. Pardee