6 GAS CONDITIONING
Gas conditioning comprises all gas treatment steps to adjust the main gas composition of the biosyngas to meet the specifications of the gas application (cf. Table 3). The main issues in gas conditioning are adjustment of the H2/CO ratio and CO2 removal. Typically, processes for the manufacturing of syngas from hydrocarbon feedstocks produce mixtures of hydrogen, carbon dioxide, methane, and varying amounts of carbon monoxide. For the majority of industrial processes, the carbon monoxide content is higher than that required for synthesis. The presence of CO2 is undesired in most processes and this compound should be removed.