Distillation columns are complex processes for modeling and controlling. These columns are significant parts of most chemical industries for separation of components. Control of this process is essential for achieving certain purity for products with a minimum cost. However, nonlinearities, multivariable interaction, non-stationary behavior and severity of disturbances inside the column made th...

BACKGROUND The Iranian traditional medicine is one of the branches of complementary medicine and it is based on using the dosage forms of plants. One of the most common forms of pharmaceutical plants is Aragh. Due to ease-of-use, distillate is a more acceptable form among the public. In this article, it is attempted to study the usage forms and effects of Aragh according to the valid traditiona...

Fuel ethanol is an important renewable and sustainable fuel, produced in China by fermentation of mostly corn, wheat and cassava feedstock. Fermentation produces an ethanol-lean broth (10 to 12 vol%). Ethanol is recovered by distillation, followed by a molecular sieve drying beyond the azeotropic point. The distillation and molecular sieve operations consume most of the total energy used, with ...

The question addressed here is how to integrate computational tools, namely interactive generalpurpose platforms, in the teaching of Process Units. Mathematica has been selected as a complementary tool to teach distillation processes, with the main objective of leading students to achieve a better understanding of the physical phenomena involved and thereafter design the corresponding equipment...

ation sciences is the puriRcation and recovery of solvents especially from HPLC and GPC usage. There is a range of equipment supplied for recycling of solvents and useful sources of information can be found on the internet, for example the web pages for B/R Instruments and Recycling Sciences are included in the Further Reading. The applications of distillation in analysis are widespread, with t...

An examination of the program of the next meeting of distillation and absorption indicates there are only a few lectures on thermodynamcis. The authors asked some important companies to give their view of the trends in thermodynamics. This plenary lecture concerns some of the remaining challenges in the thermodynamics related to distillation: data banks and locations for measuring experimental ...

Distillation columns are important separation equipment that comprise most of the investment needed in a petroleum refining plant. Utilities and energy demands, though, concerning factor current economic environmental scenario. The present work proposes methodology to optimize consumption crude oil distillation column using Distop Calibration technique allows faster convergence than Tray-to-Tra...

One approach to active learning involves taking students through a guided exploration process; one which ensures students will observe phenomena and then be asked questions intended to draw conclusions regarding the observations. In recent years, this has been called inductive teaching, but more recently the expression “inquiry-based instruction” or related terms have become more common. Concur...

Abstract Magnesium-based materials with exceptional properties are being widely used in the automotive and aerospace industries, as well electronic equipment Mg-based implants. The development of many advanced engineering structures precision devices prompts demand for high-purity Mg better performance service. However, current purification methods meet challenges such complex equipment, potent...

Biodiesel is a fuel made from vegetable oils, animal fats and microbial oil (algae, bacteria and fungi). The raw materials are converted to biodiesel through a chemical reaction involving alcohol and catalyst. The purpose of the present work is to present an efficient process using reactive distillation columns applied to biodiesel production. Reactive distillation is the simultaneous implement...