The determination of total volatile bases (TVB) is probably the oldest objective chemical method for assessing the spoilage of fishery pro­ ducts. It was proposed about a century ago and was already published as standard method for the inspection of fish in Germany in the first years of this century (KÖNIG, 1910). This simple method is still widely used. A European Union directive on fish hygie...

Obtaining high quality rectified ethyl alcohol is a priority for the further development of industry. The solution to this urgent problem possible under condition deeper extraction and concentration volatile impurities on plates column equipment Distillation/Rectification Unit.
 In columns Unit simultaneously with release due esterification reaction formation organic compounds that degrade...

In this study, different unit operations for distillation, extraction, capturing and separation of essential oil components from plants are evaluated, on the example limonene carvone caraway fruits. Hydrodistillation is standard process obtaining oils leaves distillation water (hydrolate) after phase distilled plant material (pomace) as waste streams. a valorization these streams, using techniq...

Background and Objectives: Red beet juice, a potential source of valuable nutrients, is widely used as a colorant in food industries. In recent years, to avoid reduction of nutritional values of the red beet during concentration by thermal processing, an osmotic distillation (OD) technique has been suggested. Therefore, the major aim of the present study was to investigate effects of the flow r...

Dimethyl ether (DME) is of great industrial interest due to its use as clean fuel for diesel engines or in combustion cells, as a precursor to other organic compounds, as well as a green aerosol propellant that can effectively replace chloro-fluoro-carbons. Conventionally, high purity DME is synthesized by dehydration of methanol produced from syngas, in a process involving a catalytic fixed-be...

This paper proposes a technique for optimizing crude cut points. Taguchi method is applied in the selection of the significant variables and their respective optimal levels for a fractionation process. The variables considered were the cut point temperatures of products, namely, naphtha, kerosene, light and heavy diesels, atmospheric gas oil and the residue. The variables were assigned lower an...

The design for a new packed distillation column for consideration as a new experiment for the University Of Florida Department Of Chemical Engineering Unit Operations Laboratory was created to demonstrate the separation of water and isopropanol (i-Pr) and to evaluate a parallel applied multi-correlation approach to creating a high accuracy process model based on correlations with known margins ...

The purpose of this investigation was to determine the effect of several point-of-use water conditioning systems on the fluoride concentration in community fluoridated water. Point-of-use water conditioning systems attach at the sink to provide the user with protection from certain water contaminants. A sampling apparatus was constructed to allow collection of water samples before and after con...

Abstract The application of biodiesel will increase in accordance with the government’s mandatory program for saving fossil fuels. challenging would come from particulate levels and water content. One efforts to fix issues is by adding rhodinol citronella oil as an additive. This research was conducted design a vacuum distillation process which has 500L capacity determine fractionation unit. Si...