Xem 1-8 trên 8 kết quả Distillation column
  • Distillation is probably one of the oldest systematic processes in the field of chemistry and chemical engineering which goes back to the first century AD. The initial concepts were applied in the production of distilled water. Distillation was a single step batch process at the beginning. However, fractional distillation as is used today was developed more than 10 centuries later.

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  • To help you have more documents to serve the needs of learning and research, invite you to refer to the content of the curriculum "Dynamic modeling: 6 - DeButanizer Column". Hope this is useful references for you.

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  • The rapid increase in the price of crude oil in recent years (as of 2005) and the resulting“sticker shock” at the gas pump have caused the scientific and engineering communitiesto finally understand that it is time for some reality checks on our priorities. Energyis the real problem that faces the world, and it will not be solved by the recent fads ofbiotechnology or nanotechnology. Energy consumption is the main producer of carbondioxide, so it is directly linked with the problem of global warming.

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  • The perspective of this book is that the steady - state separation model should also be the basis for developing the control confi guration for the column. Yes, a steady - state model! Although the technology to do so is widely available, extending to a dynamic model is not necessary for developing the column control confi guration. The most crucial component of every process control application is developing the piping and instrumentation (P & I) diagram that defi nes the control confi guration for the process and for each unit operation, such as distillation, within that process.

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  • VACUUM DISTILLATION TOWER In order to further distill the residuum from the atmospheric tower at higher temperatures, reduced pressure is required to prevent thermal cracking. The process takes place in one vacuum distillation tower. The principles of vacuum distillation resemble those of fractional distillation and, except that larger-diameter columns are used to maintain comparable vapor velocities at the reduced pressures, the equipment is also similar.

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  • CSS3 is the technology behind most of the eye-catching visuals on the Web today, but the official documentation can be dry and hard to follow. Luckily, The Book of CSS3 distills the heady technical language of the CSS3 specification into plain English, so you can get started on your next project right away. With real-world examples and a focus on results, The Book of CSS3 shows you how to transform ordinary text into stunning, richly detailed web pages fit for any browser.

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  • In the distilling plant dirty solvent mixtures are cleaned. The principle is based on the difference of the boiling point between the solvents used as cleaning dilution and the contamination contained in it. The dirty cleaning agent is heated up and easily volatile constituents to evaporate. The boiling point of the assigned solvents amounts to max. 155°C. The materials simmering up to this temperature are led over a cooling column. The condensate consists to a large section of the solvents used as cleaning agents.

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  • Essential oils (also called volatile oils) generally extracted by distillation from plants are hydrophobic liquids containing volatile aromatic compounds. The essential oils are widely used in perfumes, cosmetics as well as in food and drink as flavor additives. Some essential oils show multiple pharmacological activities and have been considered as the major active fractions of herbal medicines [1–3].

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