Catalytic pyrolysis of n-heptane on unpromoted and potassium promoted calcium aluminates

摘要: Abstract Steam pyrolysis of n -heptane has been studied over different calcium aluminates and potassium impregnated aluminate in a fixed bed reactor at atmospheric pressure. Various catalysts were prepared by changing the precursor salt for obtaining CaO, which was subsequently used with Al 2 O 3 catalyst preparation. Depending on source catalytic properties such as X-ray diffraction patterns, surface area, weight loss during reduction amount CO chemisorbed (basicity) different. Compared to unpromoted catalysts, K significantly reduced coke deposited catalyst, but only had marginal effect products selectivities. The activation energy gasification reaction 140 kJ/mol.