The heat-integrated distillation column to be addressed in this paper is a special distillation column that involves internal heat integration between the whole rectifying and the whole stripping sections. An overview of the research on this process is presented in this work. It covers from the thermodynamic development and evaluations to the practical design and operation investigations for th...

the composition of the essential oils of teucrium chamaedrys l. belongs to the family lamiaceae, it is growing wild in the margin of mountainous roads of arid and cold climate of north iran. in this research, essential oils of teucrium chamaedrys l., extracted and measured at the different location by different methods of distillationand then were analyzed by gc and gc/ms. investigation and com...

Membrane distillation is a process that utilizes differences in vapor pressure to permeate water through a macro-porous membrane and reject other non-volatile constituents present in the influent water. This review considers the fundamental heat and mass transfer processes in membrane distillation, recent advances in membrane technology, module configurations, and the applications and economics...

Batch distillation in a column with a middle vessel can avoid many of the disadvantages associated with the regular batch distillation processes. In this paper we present an experimental investigation of the separation of a zeotropic ternary mixture via total reflux operation and of the separation of an azeotropic binary mixture via batchwise extractive distillation. Moreover, the results obtai...

for the gas stream in the distillation unit. Coagulation of the beer samples, especially when running a large number of samples, can arise in the distillation unit. Coagulation interferes with the smooth flow of sample through the distillation unit and gives erratic results. Coagulation was prevented by mixing the sample with a M potassium hydroxide solution (Figure 2) before pumping it into th...

The aim of this study is to analyze the volatile composition and antimicrobial antioxidant activities essential oils Polytrichum commune Antitrichia curtipendula. obtained by hydro-distillation (HD) from each species were identified GC-MS/FID. main components biformene (13.06%), ?-pinene (6.53%), bornyl acetate (8.10%) in P. commune. Nonanal tetradecanal as major compounds 19.96% 20.23% A. curt...

Essential oils were investigated as fuel additives in this research. Origanum Acutidens is used to make essential oil. In the oil recovery process, hydro distillation was used. With transesterification reaction, obtained converted into biofuel. a specific proportion, biofuel combined with reference diesel fuel. Critical studied for their effect on engine efficiency and combustion parameters. A ...

Indonesia memiliki sumber daya alam hayati yang banyak dan beragam. Di antaranya adalah tanaman-tanaman penghasil minyak atsiri (essential oil). Minyak cengkeh (Syzygium Aromaticum) merupakan salah satu nilai ekonomis tinggi. Semakin banyaknya dibutuhkan masyarakat maka sebagian besar produksi dilakukan menggunakan penyulingan. Terdapat metode distilasi pada era modern saat ini untuk memperoleh...

Forensic scientists use various techniques to separate accelerants from fire debris samples before instrumental identification of added fuels. Among the choices available, traditional micro-distillation, steam distillation, vacuum distillation, headspace, heated headspace, and several vapor adsorption/desorption methods provide various advantages and disadvantages. This communication reviews th...