Chemical Processes in Fuel and Chemicals Production

Chemical Processes in Fuel and Chemicals Production

• Scrubbing Cl- to below 5ppb with alkaline-treated Al2O3 is done to prevent corrosion in heat exchangers caused by chlorides and protect the catalysts from being poisoned.
• The combined reaction of CO and H2 formation from CnHm is endothermic.
• Processes based on H2 and syngas are one of the most basic processes involved in fuel, food, and chemicals production and distribution.
• For NH3 synthesis, primary and secondary reforming are operated at high temperatures to favor the equilibrium yields.
• A pre-reformer may be used in the steam reforming process to lower the steam/carbon (S/C) ratio operation and protect downstream catalysts.
• The combined steam/CO2 reforming for syngas with H2/CO = 2 is an endothermic reaction, meaning that heat must be supplied.
• The compositional requirement for syngas in terms of stoichiometry is M = (H2-CO2)/(CO + CO2) = 2.
• Adjusting the variables H2/CO and H2O/CH4 ratio in the production of syngas is to achieve the desired H2/CO ratio.
• Steam reforming is considered to be one of the most basic processes involved in fuel, food, and chemicals production and distribution.
• The primary and secondary reforming stages in the NH3 synthesis process are operated at high temperatures to favor the equilibrium yields.
• Scrubbing Cl- to below 5ppb with alkaline-treated Al2O3 in the Cu-WGS process is done to prevent corrosion in heat exchangers and protect the catalysts from being poisoned.
• The compositional requirement for syngas in terms of stoichiometry is M = (H2-CO2)/(CO + CO2) = 2.