Removal characteristics of trace compounds of landfill gas by activated carbon adsorption

Fuel quality issues in stationary fuel cell systems.

“…Furthermore, water and CO 2 are strongly adsorbed on zeolites and, therefore, the gas to be treated needs to be free of moisture [20]. Data on adsorption of halogens on carbon only confirmed the results in our study that vinyl chloride and, in particular, low molecular weight halogens, such as chloromethane and chloroethane, are poorly adsorbed on many types of activated carbon [44,60,77,89,90].…”

“…Moisture, especially at relative humidities (RH) exceeding 40%, can significantly reduce the capacity of adsorbents, such as activated carbon [56][57][58][59][60]. Some other adsorbents, for example silica gel and zeolites, are extremely sensitive to moisture and may require the gas to be almost dry (RH<10%) [20,61].…”

“…The affinity coefficient (β) and the pore volume adjusting coefficient (k v ) are parameters that need to be estimated [64,65,67,69] or fitted to adsorption isotherm data. For the most part, we could find literature data for many of the species shown in Appendix 2 and fit equation (5) to those data [50,59,60,67,[69][70][71][72][73][74][75][76][77][78][79][80][81][82][83][84]. For the cases where data were not available (8 species), the parameters were correlated by using a reference species of similar properties and the method developed by Ye et al [67].…”

“…Shin et al [60] measured the breakthrough time for 8 species in raw landfill gas using activated carbon. The species measured were 4 aromatics and 4 halogenated compounds.…”

Determination of Siloxanes in Biogas by Solid-phase Adsorption on Activated Carbon

“…Hence, the transformation of methane in landfill gas into a usable resource is actively being studied worldwide in order to effectively reduce greenhouse gas emissions as well as to develop an alternative source of energy. [1][2][3][4] In Korea, landfill gas has been economically converted to energy resource by producing alternative fuels and producing electric power using steam turbine or gas engine power generation. 5 However, the efficiency and performance of the power generation facilities are less than expected because the fuel quality is low (the methane content is only about 50% in landfill gas).…”