First law energy analysis of thermochemical waste-heat recuperation by steam methane reforming

摘要: Abstract Thermochemical recuperation of waste flue gas heat may be advantageous for improving energy efficiency hydrocarbon fuel-consuming furnace. The schematic diagram thermochemical (TCR) by steam methane reforming is described. Thermodynamics equilibrium analysis (SMR) process has been investigated via Gibbs free minimization technique to determine the effects pressure, inlet steam-to-methane ratio and temperature on TCR efficiency. was carried out range 600–1300 K 1–6, respectively, at different pressure 1–20 bar. results shown that can controlled maximum operating various feed stocks. rate balance were analyzed temperatures, mixture pressure. For effective operation it necessary use a less than 10 bar, because in this case percentage volume non-combustible components synthesis minimal. optimal conditions determined: 2 900–1100 K; 1 above 1200 K; 5–10 bar.