the objective of this research is to find an economically attractive alternative method for hydrodesulfurization of petroleum fractions and to select a suitable adsorbent for this process.deep desulfurization of transportation fuels (gasoline, diesel, and jet fuels) is being mandated by governments and is also needed for future fuel cell applications. however, it is extremely difficult and cost...

Zeolites have been increasingly used in various application areas such as industry, agriculture, environmental protection, and even medicine. Although, there are no certain figures on the total amount of these minerals the world, some countries e.g. Cuba, USA, Russia, Japan, Italy, South Africa, Hungary and Bulgaria, have important reserves and production potentials. According to reports of 200...

BACKGROUND Zero valent iron and copper oxide nanoparticles (30-60 nm) were coated on a bed of natural zeolite (Clinoptilolite) with 1-2 mm grains and arranged as a dual filter in a stainless steel cylindrical reactor (I.D 4.5 cm and L = 30 cm) to investigating the coated bed removal efficiency for BTX. The experiments were conducted in three steps. First, with an air flow of 1.5 L/min and tempe...

The effects of clinoptilolite in pig’s diets were examined on sixty Landrace × Yorkshire crossbred pigs of both sexes divided into two groups: 1. control group, with basal diets; 2. treatment, with basal diets supplemented with 5 g clinoptilolite per 1 kg diet (Cp group). Feed and water were available ad libitum. Individual live weights were recorded on days 45, 90 and 135 of the experiment. Fe...

Concretes mixed with seawater are characterised by enhanced performances, but action of chlorides and sulfates ensures the risk reinforcement corrosion. Application high consistency fresh concretes changes in hardened concrete structure that causes problem steel passive state ensuring. Thus mixing plasticized actualizes search for means corrosion prevention. Alkali-activated slag cements (furth...

The applicability of clinoptilolite zeolites in controlling the emission greenhouse gases (GHGs) such as CO2, most significant GHG, is investigated herein. In this research, Mexican natural (ATN) originating from an Atzinco deposit state Puebla were used. Samples modified (ATH4, ATH3, ATH2 and ATH1) obtained starting material by acid treatment various intensities. Inverse gas chromatography was...

unmodified zeolites show little affinity for anions due to the fact that their surfaces are negatively charged. however modification of zeolites with amines turns their negative surface charge to positive and creating higher adsorption capacity for anions. in this study, polyaniline-clinoptilolite composite was prepared by polymerization of anilinium on the surface of zeolite. the composite was...