in Tremoulet‚ Unton‚ & Feng‚ 1998). A molten salt will be used a heat source for the endothermic reaction: The acetone produced in the reactor passes into a phase separator and then into a separation system that includes one stripping and two distillation column. 1.1 The Uses Of Acetone Acetone is an organic chemical consisting of carbon‚ hydrogen‚ and oxygen atoms. It is a clear‚ flammable liquid at room temperature. It is produced by humans in small amounts through routine biological processes
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people filter water so that it is safe for drinking. Mixtures contain two or more substances that are not in a fixed ratio‚ and while some mixtures‚ such as concrete‚ are useful‚ others including salt water‚ are not as useful to us. Filtration‚ distillation‚ paper chromatography‚ and centrifugation are just a few methods used for separating mixtures. There are many methods of separating mixtures. A more commonly known and used method is filtration. Filtration separates mixtures using filter paper
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Food ©2007 Global Science Books Food Preservation – A Biopreservative Approach Iraj Rasooli Department of Biology‚ Shahed University‚ Opposite Imam Khomeini’s Shrine‚ Tehran-Qom Express Way‚ Tehran‚ Iran Correspondence: * rasooli@shahed.ac.ir ABSTRACT Preservative agents are required to ensure that manufactured foods remain safe and unspoiled. Antimicrobial properties of essential oils (EOs) reveal that Gram-positive bacteria are more vulnerable than Gram-negative bacteria. A number of EO
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simple distillation (product: 6.5395g‚ 79.75% recovery). The cyclohexene then underwent a bromination reaction by addition of concentrated HBr and a 30% H2O2 solution‚ followed by an extraction of the aqueous phase. This produced trans-1‚2-dibromocyclohexane (product: 12.8886g‚ 67.34% recovery). The trans-1‚2-dibromocyclohexane was reduced by zinc metal to cyclohexene. The reaction was conducted in water‚ first allowing the reaction to reflux and then isolating the cyclohexene by distillation (product:
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“UNSAFE DRINKING WATER” An adequate supply of safe drinking water is one of the major prerequisites for a healthy life‚ but waterborne disease is still a major cause of death in many parts of the world‚ particularly in children‚ and it is also a significant economic constraint in many subsistence economies. The basis on which drinking water safety is judged is national standards or international guidelines. The most important of these are the WHO Guidelines for Drinking Water Quality. The quality
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THE BENEFITS THAT ENGINEERING HAS BROUGHT TO THE WORLD INTRODUCTION Engineers apply the principles of science and mathematics to develop economical solutions to technical problems. Their work is the link between scientific discoveries and the commercial applications that meet societal and consumer needs. They also use their imagination and analytical skills to invent‚ design‚ and build things that matter. They are team players with independent minds who turn ideas into reality. Many become
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The biogas production ranges from 50-150m3/tonne of wastes‚ depending upon the composition of waste. The biogas can be utilized either for cooking/ heating applications‚ or through dual fuel or gas engines or gas / steam turbines for generating motive power or electricity. The sludge from anaerobic digestion‚ after stabilization‚ can be used as a soil conditioner‚ or even sold as manure depending upon its composition‚ which is determined mainly by the composition of
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Oil refining in China Ed chen‚ a strategic planner at a international oil and gas firm was assigned with the task to look for investment opportunities in the china’s refining industry and also to see whether there was any room for foreign competition or if was a local-only-game. Downstream constraints have always been a major factor which will ease neither quickly nor cheaply”. “ Crude oil prices have continued to increase in the period 2001-2005 and according to the” Medium term oil market
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Oil Characterization 1 Oil Characterization 1 © 2003 AspenTech. All Rights Reserved. EA1031.31.05 05 Oil Characterization.pdf 2 Oil Characterization Workshop The petroleum characterization method in HYSYS converts laboratory analyses of condensates‚ crude oils‚ petroleum cuts‚ and coal-tar liquids into a series of discrete hypothetical components. These petroleum hypo components provide the basis for the property package to predict the remaining thermodynamic and transport properties necessary
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convert biomass into syngas and biochar‚ to turn waste into safely disposable substances‚ and for transforming medium-weight hydrocarbons from oil into lighter ones like gasoline. These specialized uses of pyrolysis may be called various names‚ such as dry distillation‚ destructive distillation‚ or cracking. Pyrolysis also plays an important role in several cooking procedures‚ such as baking‚ frying‚ grilling‚ and caramelizing. In addition‚ it is a tool ofchemical analysis‚ for example‚ in mass spectrometry and in carbon-14
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