Preparation of activated carbon from furfural production waste and its application for water pollutants removal and gas separation

Abstract

Activated carbon (ACs) was produced by chemical activation of industrial furfural production waste (FPW) by different chemical activators. The carbon (HP-AC500) produced from pyrolysis of H 3 PO 4 -FPW at 500 • C is microporous carbon with certain proportion of mesopores whose Brunauer-Emmett-Teller (BET) surface area and pore volume could reach 751.8 m 2 /g and 0.63 mL/g, respectively. The carbon (ZN-AC600) produced from pyrolysis of ZnCl 2 -FPW at 600 • C is essentially microporous carbon whose BET surface area and pore volume could reach 1143 m 2 /g and 0.61 mL/g, respectively. ZN-AC600 carbon shows better performance in adsorbing phenol with its maximum monolayer adsorption capacity reaching 166 mg/g, while HP-AC500 carbon shows its better performance in adsorbing Cr (VI) with maximum monolayer adsorption capacity reaching 27 mg/g. The adsorption model based on Unilan together with Clausius-Clapeyron equation provides a satisfactory representation for low-pressure CO 2 , CH 4 , N 2 adsorption on ZN-AC600 and HP-AC500, respectively. Both equilibrium and kinetic results show that the HP-AC500 carbon has better CO 2 separation performance. 

Silica Content and Structure from Corncob Ash with Various Acid Treatment (HCl, HBr, and Citric Acid)

“…There have been several studies in the literature reporting corncob waste use. Corncob waste has been used as a mixture of animal feed (Umiyasih and Wina, 2008), adsorbent (Hou et al, 2013;Sun et al, 2012), biofuel (Li et al, 2010), and cement (Adesanya and Raheem, 2010).…”

Activated Carbon Preparation from Lignin by H3PO4 Activation and Its Application to Gas Separation

“…Physical adsorption on carbonaceous adsorbents is widely used for the separation and purification of gases [1]. One significant commercial application is the separation of methane and carbon dioxide during natural gas processing [2].…”

NH4Cl selective leaching of basic oxygen furnace slag: Optimization study using response surface methodology

“…A CCD with four independent variables was investigated to study the response pattern and to determine the optimal combination of duration of leaching (min), concentration of leaching media NH 4 Cl (mol L 21 ), LSR liquid solid ratio (mL g 21 ) and leaching temperature (8C) to maximize both Ca 21 and Mg 21 concentrations. The design with four independent variables at five different levels with total 30 different runs was adopted to find offset, linear, quadratic and interaction terms of the following equation:…”

“…In this paper, a central composite design (CCD) by response surface methodology (RSM) [35]was employed to elucidate the simultaneous effects of different operational conditions such as leaching duration (min), NH 4 Cl concentration (mol/L), LSR (liquid solid ratio mL/g), leaching temperature (8C), in determining the optimal condition for maximizing extraction of Ca 21 and Mg 21 cation from SL, to the best of our knowledge, has never been reported before.…”