Development Of Zeolites-Based Catalysts For Hydrocracking Of Gas Oil.

In this project, USY zeolite supported NiMo, CoMo, NiW and CoW were prepared using the incipient wetness method. Over NiWIUSY catalyst, the total conversion and distillate fuels were 15.54 and 15.77 wt%, respectively higher than those obtained over unloaded USY zeolite. Then NiWIUSY catalyst with different nickel and tungsten loadings were prepared. It was observed that at tungsten and nickel loadings of 23 and 5 wt%, the total conversion and yield of total distillate fuels were 63.35 and 52.35 wt%, respectively

Development of chitosan-based adsorbents for removal of reactive Azo Dyes from Aqueous solution.

The adsorption of reactive blue 19 (RB19), reactive orange 16 (R016) and reactive black 5 (RB5) on cross-linked chitosan/oil palm ash composite beads was studied in batch and column modes of operation. Penjerapan pencelup reaktif biru 19 (RB19), reaktif oren 16 (R016) dan reaktif hitam (RB5) menggunakan manik-manik komposit chitosan/abu kelapa sawit terpaut silangan dikaji pada kedua-dua keadaan operasi iaitu kelompok dan turus

Organic dye adsorption on activated carbon derived from solid waste

Activated carbon was prepared through a chemical activation of bamboo waste precursor (BMAC) using phosphoric acid as the activating agent at 500°C for 2 h. Batch adsorption studies were carried out for the adsorption of C.I. Reactive Black 5 (RB5) onto the BMAC. The effect of various experimental parameters such as initial dye concentration (50–500 mg/L), contact time (0–32 h), pH (2–12), and temperature (30–50°C) were investigated. Equilibrium data were found to be very well represented by the Freundlich isotherm and a pseudo-second-order model was found to explain the kinetics of RB5 adsorption more effectively. The mechanism of the adsorption process was determined by the intraparticle diffusion model. Thermodynamic parameters such as standard enthalpy (ΔH°), standard entropy (ΔS°), standard free energy (ΔG°), and activation energy were determined. The results indicated that BMAC is a suitable adsorbent material for adsorption of reactive dye from aqueous solutions

Single And Binary Adsorption Of Phenol And 3-Chlorophenol Onto Granular Activated Carbon.

Removal of phenol and 3-chlorophenol from single and bisolute diluted aqueous solution through adsorption on commercial granular activated carbon were experimentally investigated

Adsorption Equlibrium Of Phenols From Aqueous Solution Using Modified Clay.

The adsorption equilibrium study of phenol, 3-chlorophenol and o-cresol from liquid-phase system was carried out at temperature of 30°C using modified montmorillonite

Adsorption Isotherm Of O-cresol From Aqueous Solution By Granular Activated Carbon.

Equilibrium adsorption isotherms of o-cresol from aqueous solution were investigated by a series of laboratory batch studies

Aqueous-Phase Adsorption Of Phenolic Compounds On Activated Carbon.

Laboratory batch studies were conducted on adsorption of phenol, 3-chlorophenol and o-cresol from aqueous solution by Norit Granular Activated Carbon (NAC 1240)

Adsorption Isotherms For Phenol Onto Activated Carbon.

This laboratory study investigated the effectiveness of two types of activated carbons (ACs), NORIT Granular Activated Carbon (NAC 1240) and NORIT Granular Activated Carbon D10 (NAC D10),for the removal of phenol from aqueous solutions. The study was carried out under batch mode at different initial concentrations (10-60mg/I) and at temperature of 30°C. The adsorption isotherm parameters for the Langmuir and Freundlich models were determined using the adsorption data. It was found that both the Langmuir and the Freundlich isotherms described well the adsorption behavior of phenol on NAC D10, while the Freundlich isotherm described very well the adsorption of phenol on NAC 1240

[ENV03]Equilibrium Adsorption Study Of 3-Chlorophenol And O-cresol On Modified Mantmorillonite.

Phenolic compounds are commonly produced in wastewater streams generated by petrochemical, oil refineries, coal conversion,steel plant, paint and phenol-producing industries (Gallego et al., 2003; Aygunn et al.,2003)

Adsorption Kinetics Of Phenolic Compunds Onto Activated Carbon.

Aqueous-phase adsorption equilibrium and kinetic mechanism of phenol, 3-chlorophenol and o-cresol onto Norit Granular Activaied Carbon (NAC 1240) were studied in a batch system at temperature of 30oC,agitation speed of 120 rpm, initial phenol concentrations of 25-200 mg/l