In adsorption heat pumps, the adsorbent is typically combined with conducting structures in order to ensure high power output. A new approach for direct integration of zeolite granules into a copper structure made short fibers presented here. Zeolite NaY two different grain sizes are coated and powder sintered larger structures. The sorption dynamics these were measured evaluated terms mass tra...

limitation of water resources and necessity in profitable production, and consequentlyproductivity enhancement has taken crop production by means of unconventional water into consideration. inthis study, the effect of different levels of zeolite and nitrifying bacteria were investigated on nitrogenouscompounds absorption in a closed system of carp breeding with alfalfa. treatments of zeolites a...

Adoption of new management techniques that improve soil water storage and soil N plant availability yet limit N leaching may help improve environmental quality. A benchtop study was conducted to determine the influence of a single urea fertilizer rate (224 kg N ha) applied with band or fully mixed zeolite (clinoptilolite) application rates (up to 90 Mg ha) on NH4-N and NO3-N concentrations in a...

Methane is a hydrocarbon compound that can be used for various purposes. Currently, methane widely as fuel, and continues to developed synthetic gas material petrochemical products have added value, one of which formaldehyde. This study aimed the partial catalytic oxidation reaction formaldehyde using MoO 3 /zeolite catalyst. Reactant stream consisting pure O 2 CH 4 were contacted with rate rat...

In this paper, experimental data on the drying kinetics of corn in a packed and fluidized bed are presented. Experimental research was conducted on a laboratory apparatus. Corn was used as a material because of its significance in agriculture and the food industry. An analysis of the influence of the operational parameters (the drying medium velocity i. e. the flu...

The aim of this study was to examine the removal ammonium ions from a synthetic model solution by using Na-zeolite-based geopolymers. Na-zeolite (=analcime) is residue mining industry. Three adsorbents were prepared different production steps and metakaolin as blending agent. These novel investigated in fixed-bed column system where effects flow rates with initial concentration 40 mg/L studied....

This study investigated whether zeolites of different size (Y30 (nano-sized) and H-Beta(OH)-III (forming large aggregates/agglomerates composed of 50 nm small primary particles)) exerted acute toxicity on larvae of the non-biting midge, Chironomus riparius, and whether such zeolites are able to modulate the toxicity of a common insecticide, thiacloprid, by means of adsorption of a dissolved tox...

Zeolites are the catalytic materials that widly applied in processing of conventional and renewable fuels chemicals. The present study provides a comprehensive analysis factors controlling acidic medium synthesis high silica silicalite-1 zeolite. effect various sources (TEOS, fumed colloidal silica) alkali metal cations (Na K) on formation is studied. efficiency different types seeds (micron-si...

Shape-selective methylation of naphthalene (NAPH) over SAPO-11 zeolite was carried out in a fixed-bed flow reactor under atmospheric pressure. Some zeolites, such as H-beta (Hβ), HUSY and ZSM-5 were also evaluated for comparison with SAPO-11 zeolite.The results showed that SAPO-11 exhibited higher stability, higher selectivity of  2,6-dimethylnaphthalene (2,6-DMN), and higher 2,6-/2,7-DMN r...