The optimization method is vital in chemical synthesis and has been applied many fields nowadays. Response surface methodology (RSM) an example of that useful examining the effects multiple independent variables. RSM was studies to optimize transesterification biodiesel production from palm oil presence a catalyst. This paper aims provide overview recent catalyzed trends, as well benefits drawb...

metal matrix composites have been widely used in industries, especially aerospace industries, due to their excellent engineering properties. however, it is difficult to machine them because of the hardness and abrasive nature of reinforcement elements like silicon carbide particles (sicp).in the present study, an attempt has been made to investigate the influence of spindle speed (n), feed rate...

In our former work [Catal. Today 174 (2011) 127], 12 heterogeneous catalysts were screened for CO oxidation, and Au-ZnO/Al2O3 was chosen and optimized in terms of weight loading of Au and ZnO. The present study follows on to consider the impact of process parameters (catalyst preparation and reaction conditions), in conjunction with catalyst composition (weight loading of Au and ZnO, and total ...

Response surface methodology (RSM) was used to optimize the microwave-assisted direct liquefaction of Sargassum polycystum C.Agardh in ethylene glycol (EG) with H(2)SO(4) as a catalyst. Based on the results of single factor experiments, EG-to-feedstock ratio, temperature and catalyst content were chosen as independent variables for a central composite rotatable design (CCRD). The optimal liquef...

The application of Butane tetra carboxylic acid/nano titanium dioxide [(BTCA)/Nano TiO2 (NTO)] on cotton fabric has been used to cross-linked cellulose, and yield higher NTO absorption and enhanced selfcleaning properties. In this research, the synergistic effect of BTCA and NTO on antibacterial properties of the cotton fabric was investigated. The NTO particles were stabilized on the cotton su...

This search aim to study the feasibility of hydro-desulfurization (HDS) gas oil in fixed bed reactor by using economic support catalyst alumina meta kaolin (AMK) under various operating condition, i.e. Temp. (240−320 ◦C), Press. (3–12 bar), WHSV (2–6 h−1) at H2/HC ratio (50 vol./vol.). The was prepared from Iraq and characterization scanning electron microscopy (SEM), energy dispersive X-ray an...

Biodiesel is an alternative diesel fuel produced using transesterification method where edible or non edible oil and alcohol reacts in the presence of catalyst. Biodiesel is expensive than fossil fuels because of higher raw material and production costs. Solid coconut waste is an alternative raw material from waste and suitable for biodiesel production to lower the production cost. Solid coconu...

In this study, a novel continuous reactor has been developed to produce high quality methyl esters (biodiesel) from palm oil. A microporous TiO2/Al2O3 membrane was packed with potassium hydroxide catalyst supported on palm shell activated carbon. The central composite design (CCD) of response surface methodology (RSM) was employed to investigate the effects of reaction temperature, catalyst amo...

there have been many productive methods developed so far for optimization of multiple response surface (mrs) problems. this paper tends to review the most seminal approaches in mrs and discuss the strength and weakness of each of the approaches through existing aspects in mrs. a numerical example is included to compare results by different methods. finally some of the prominent areas for future...