We know from the literature that cost-effectiveness of using zeolites to purify natural gas is much higher than other resources. In laboratory, CaCl 2 ∙ZnCl ∙MnCl /HQZ were prepared by treating bentonite obtained local raw materials with calcium, zinc, and magnesium salts. Local are activated mechanical-thermal chemical processing delivered in form dark-colored granules (tablets) up 5 mm diamet...

This work describes the design and implementation of a Zero-Length Column system to measure: diffusion coefficients, adsorption isotherm parameters pure components mixtures. In addition, graphical user interface (GUI) was developed in LabVIEW for semi-automatic operation system. The is novel because it integrates all aforementioned functionalities without using mass spectrometry. Two adsorbents...

Sorption-enhanced methanation (SEM) is one of the solutions proposed for production high quality synthetic natural gas (SNG) under mild conditions temperature and pressure. In this novel process, reaction performed in presence an adsorbent that retains water produced as by-product. The SEM potential a Rh-based catalyst zeolite 5A has been demonstrated both CO CO2 hydrogenation. Pure CH4 was pos...

The activation of soil-fixed phosphorus is a long-term concern in soil science. In order to enhance the activation effect to soil-fixed phosphorus in red soil, different modified zeolite, through physical, chemical method and the associated both physics and chemistry, was used in this paper. The results showed as following: 1) the activated ability to soil-fixed phosphorus in red soil for modif...

In small-pore zeolite catalysts, where the size of the pores is limited by eight-ring windows, aromatic hydrocarbon pool molecules that are formed inside the zeolite during the Methanol-to-Olefins (MTO) process cannot exit the pores and are retained inside the catalyst. Hydrocarbon species whose size is comparable to the size of the zeolite cage can cause the zeolite lattice to expand during th...

In recent years, natural substances such as zeolite have been used to absorb heavy metals in soil in an attempt to decrease their availability to plants. Compared to other techniques, the use of zeolite is fast, clean, and inexpensive. This research was carried out to investigate the effects of an Iranian natural zeolite (clinoptilolite) on stabilizing Cd-contaminated soil treated with 0.01 M C...

Background and Aims: Involvement of matrix metalloproteinases 3 (MMP3) in breast cancer tumor progression and metastasis has been revealed. MMP3 -1171 5A/6A and 5A/5A polymorphisms in the gene  promoter increase expression of the enzyme. The possible relationship of these polymorphisms and serum levels of major histocompatibility complex class I chain-related protein A and B (MICA/B) in br...