Incorporating Energy Generation into Volatile Organic Compound (VOC) Emission Treatment Using a Solid Oxide Fuel Cell: A Model-Based Approach

Abstract

The purpose of this document is to provide the background calculations outlining how the adsorption parameters were calculated, and details on the factorial analysis. ADSORPTION CALCULATIONSModeling an adsorption system in HYSYS presents interesting complexities. To begin, there are interphase transport issues, uncertainty in equilibrium effects, and uncertainty in the effect that each component may play upon one another during multi-component adsorption. These are only a few of the issues, without even considering the dynamic aspects of the process.For this reason, much of the background rigor was simplified and calculated outside of HYSYS, with the results of these analyses being plugged into simple HYSYS system models made to represent the overall steady-state adsorption-desorption system.In the figure below, the HYSYS Component Splitter represents the steady-state adsorption cycle, and is used to separate the air stream from the VOC stream. The concentrated VOC stream is then sent to a Mixer model which combines steam to the concentrated VOC stream. This simulates the anticipated desorption stream. A HYSYS Condenser model is then used to remove the excess water from the desorption stream. This

The strain effect on colossal oxygen ionic conductivity in nanoscale zirconia electrolytes: a first-principles-based study

“…Solid oxide fuel cells (SOFCs) are considered to be promising non-polluting technology for the substitution of fossil fuels and have attracted much attention because of their high conversion efficiency from chemical energy into electrical energy. [1][2][3][4][5][6][7][8][9][10] Currently, the most commonly used electrolyte in SOFCs is yttria-stabilized zirconia (YSZ). However, since YSZ suffers from poor oxygen ionic conductivity at room temperature, the SOFCs can now only work at high temperatures ranging from 800 to 1000 1C, and their commercialization is thus severely hindered.…”

Adsorption Behavior of Toluene on Modified 1X Molecular Sieves

“…During the past decade, many efficient and practical technologies for VOC abatement have been developed (Guieysse et al, 2008;Gupta et al, 2002;Monneyron et al, 2008), including adsorption, photocatalytic destruction, biological processes, plasma decomposition, and catalytic combustion (Borwankar et al, 2010;Chinte et al, 2009;Christian et al, 2010;Cui et al, 2009;Koziel et al, 2010;Toshiaki et al, 2010;Xue et al, 2011). Adsorption, combined with other techniques such as condensation and catalytic combustion, is considered to be a promising method for VOC removal or solvent recovery.…”