Types of Corrosion 1. Discuss the major types of corrosion. Uniform Corrosion: Uniform corrosion is characterized by corrosive attack proceeding evenly over the entire surface area‚ or a large fraction of the total area. General thinning takes place until failure. On the basis of tonnage wasted‚ this is the most important form of corrosion. (corrosion-doctors.org) This reminds me of some of the contractor spec’s I have seen for just this type of corrosion. Many of the clarification mechanisms
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Oil and Gas Law Outline Fall 2000 Class One INTRODUCTION Petroleum: generic name for certain combustible hydrocarbon compounds found in the earth A commercial oil deposit requires the presence of a porous‚ permeable rock formation containing oil of a marketable A.P.I. gravity and of producible viscosity. Three fundamental properties of petroleum (for oil and gas production): 1. state (gaseous‚ liquid or solid) 2. specific gravity
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Greenhouse gas emission What is greenhouse gas? A greenhouse gas is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. Many greenhouse gases occur naturally‚ such as water vapor‚ carbon dioxide‚ methane‚ nitrous oxide‚ and ozone. Others such ashydrofluorocarbons (HFCs)‚perfluorocarbons (PFCs)‚ andsulfur hexafluoride (SF6) result only from human industrial processes. Greenhouse gases act like a blanket around Earth‚ trapping energy in the atmosphere and causing
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The global oil and gas industry also involves the exploration and production of commodity and energy trading‚ pipeline monitoring and renewable energy. Petroleum is proved to be one of the most valuable commodities in the world today and a vital factor in the sustenance of industrial civilization. Crude oil production accounts for a significant amount of the world’s oil consumption‚ approximately 53% in the Middle East‚ 32% in Europe and Asia‚ 44% in South and Central America‚ 41% in Africa and
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Engineering Workshop 1 Exhaust Gas Treatment Index of contents Introduction Waste gas with harmful traces of gas must be burned in an afterburner. To destroy the harmful traces the temperature after the burner must achieve 900°C. The preheater can`t resist a temperature of 700°C. Therefore quench water in a mixer will be used to protect the heat exchanger. The waste gas has the following properties: Waste gas composition: Mole fraction(= 0‚9890
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can cut thicknesses from 0.5mm to 2‚500mm‚ the equipment is low cost and can be used manually or mechanized There are several fuel gas and nozzle design options that can significantly enhance performance in terms of cut quality and cutting speed. Process fundamentals The cutting process is illustrated in Fig. 1. Basically‚ a mixture of oxygen and the fuel gas is used to preheat the metal to its ’ignition’ temperature which‚ for steel‚ is 700°C - 900°C (bright red heat) but well below its melting
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weapons became popular. Poison gas‚ such as mustard and chlorine became the number one thing to use. Gas was invented to cause fear to the soldiers the army was fighting. The gas could cause death quickly over a few days which was why poison gas was the most feared of all the soldiers. Poison gas could be used when the soldiers wanted to knock out a large amount of people without having to do much. Gun shots from a machine gun were more common but using the gas put the soldiers in more pain which
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proposal of the system as well as the implemented methods‚ which are both common tools utilized by a system analyst. The Petron Gas Station Gapan Branch started the business way back 1995. Almost a decade and a half had passed and this gas station is standing still. The technology evolves fast but this gas station doesn’t seem to evolve with regards to the technology. The gas station wasn’t that aware of the computerized system other company is using. They are not aware yet of computerized inventory
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Although Helium exists in the atmosphere of Earth in small quantities‚ it is one of the most common element in the universe. It is a rare gas on earth. Helium was first discovered by Pierre Janssen in the spectrum of the sun during an eclipse in 1868. It was shortly identified as an element and was named by the chemist Sir Edward Frankland and the British astronomer Sir Joseph Norman Lockyer. Helium has an atomic number of 2 and an atomic weight of 4.002602. Helium is represented by the symbol
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After the Bhopal gas disaster in 1984‚ the Indian legislation governing safety and environment underwent significant changes.Specifically‚the factories Act was amended to assign the responsibility of the “occupier”‚who is legally responsible for the safety of the workplace and workers‚to the highest level of management in an organization. For a company this meant that one of the directors on the board had to be designated as “occupier”.The Environmental legislation also underwent changes ‚with the
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