The adsorption properties of organic sulfur compounds on zeolite-based sorbents impregnated with rare-earth metals

2015 Atomic Spectrometry Update – a review of advances in X-ray fluorescence spectrometry and their applications

“…This y ash, produced by a biomass-based thermal power plant, was considered as a potential catalyst for biodiesel production. Zeolite-based adsorbents impregnated with REE (Ce, La or Pr) were analysed with an XRF spectrometer by Jung et al, 244 and were further evaluated for their adsorption properties towards organic sulfur compounds in LPG. The feasibility of using urban river sediments as a primary raw material to produce high-insulation brick was proven by Xu et al, 245 who employed the XRF technique in combination with XRD and TG-DSC analyses to determine the chemical, mineralogical and thermal characteristics of the material.…”

Methyl mercaptan removal from gas streams using metal-modified activated carbon

“…Removal of methyl mercaptan from gas stream has been investigated by adsorption (Ryzhikov et al, 2011;Cammarano et al, 2014;Jung et al, 2014), photocatalytic oxidation (Cai et al, 2012;Li et al, 2006;Liu et al, 2008), catalytic incineration (Chu et al, 2001), decomposition (CH 3 SH / Hydrocarbons þ H 2 S) (Huguet et al, 2013), biological degradation (Liu et al, 2010;van den Bosch et al, 2009a,b;van Leerdam et al, 2011), and catalytic oxidation (Conti-Ramsden et al, 2013). However, there are a variety of advantages and disadvantages of these techniques, and they showed different degrees of cost effectiveness.…”

Regeneration study of ecat-R as adsorbent for denitrogenation and desulfurization of diesel fuels

“…The ecat matrix is composed of a clay suspension, containing mainly kaolin, alumina, silica oxides, faujasite (Y zeolite) and different rare earth cations [4]. It is common to insert rare earth cations into ecat matrix to improve the acidity, cracking activity and thermal stability of the catalysts [5,6].…”