The thesis comprises the experimental investigation of a chemical looping reforming for synthesis gas generation and the implementation of a model library for the description of the chemical looping gas-solid reactors in the simulation software IPSEpro. Additionally a semi-commercial 10 MWth chemical looping combustion plant for power production is proposed as a next scale demonstration plant. Two different chemical looping process configurations are discussed. The first one, chemical looping autothermal reforming represents a chemical looping system operated at a global air/fuel ratio below one. The second configuration represents a tubular steam reformer utilizing heat from a chemical looping combustor. To underline the presented process application operating results of the chemical looping pilot rig at Vienna University of Technology are shown.