Tesoro Corporation, headquartered in San Antonio, Texas, is a Fortune 150 and ... This position will provide technical assistance to refinery operations and are responsible for a variety of projects and ... Monitors daily operation of assigned process plants Assists in the trouble-shooting of assigned process plants ...
Story - chemeng - 09/05/2008 - 04:55 - 0 comments - 0 attachments
The behavior of the particle size distribution of coagulating dispersions is studied theoretically. If the collision frequency factor is a homogeneous function of particle volume, the partial integro-differential equation describing the coagulation kinetics can be transformed into an ordinary integro-differential equation by a similarity transformation originally proposed by Friedlander. The solution to the resulting equation, called the self-preserving spectrum, is determined for three different collision mechanisms: (1) constant collision frequency factor, (2) Brownian motion, and (3) simultaneous Brownian motion and shear flow, in which the shear rate decreases with time in a particular way. The results of this study indicate that the shape of the self-preserving spectrum is greatly influenced by the collision mechanism.
The behavior of the particle size distribution of coagulating dispersions is studied theoretically. If the collision frequency factor is a homogeneous function of particle volume, the partial integro-differential equation describing the coagulation kinetics can be transformed into an ordinary integro-differential equation by a similarity transformation originally proposed by Friedlander. The solution to the resulting equation, called the self-preserving spectrum, is determined for three different collision mechanisms: (1) constant collision frequency factor, (2) Brownian motion, and (3) simultaneous Brownian motion and shear flow, in which the shear rate decreases with time in a particular way. The results of this study indicate that the shape of the self-preserving spectrum is greatly influenced by the collision mechanism.
Inherently safer process design – the elimination or substantial reduction of hazards from a manufacturing process, rather than the application of engineering and procedural controls to manage hazards – has the greatest benefits early in process development. However, there are opportunities for application of inherently safer design principles throughout the process life cycle.
The term “inherently safer design†is relatively recent, but many of its principles have been a part of good engineering design for many years. In this paper we will describe an early example of the application of inherently safer design principles, and then focus on opportunities for enhancing the inherent safety of chemical plants during detailed design. In particular, we will emphasize the relationship between plant reliability and inherent safety. A reliable plant is inherently safer, and
design features, which enhance reliability, will generally also enhance safety.
Inherently safer process design – the elimination or substantial reduction of hazards from a manufacturing process, rather than the application of engineering and procedural controls to manage hazards – has the greatest benefits early in process development. However, there are opportunities for application of inherently safer design principles throughout the process life cycle.
The term “inherently safer design†is relatively recent, but many of its principles have been a part of good engineering design for many years. In this paper we will describe an early example of the application of inherently safer design principles, and then focus on opportunities for enhancing the inherent safety of chemical plants during detailed design. In particular, we will emphasize the relationship between plant reliability and inherent safety. A reliable plant is inherently safer, and
design features, which enhance reliability, will generally also enhance safety.
Laureate Pharma, Inc.. announced that it has been named "Company of life sciences emerging of the Year" by The Eastern Technology Council, the largest association of technology and life sciences in the vast region of Philadelphia, PA. The company was recognized for its innovation in services, achievement of milestones and strength of its management Advertisement team, at the gala awards annual ETC business in the Kimmel Center in Philadelphia.
Laureate Pharma, Inc.. announced that it has been named "Company of life sciences emerging of the Year" by The Eastern Technology Council, the largest association of technology and life sciences in the vast region of Philadelphia, PA. The company was recognized for its innovation in services, achievement of milestones and strength of its management Advertisement team, at the gala awards annual ETC business in the Kimmel Center in Philadelphia.