Cold Model Performance Test of 50 KWe Dual Fluidized Bed Gasification Technology

Research on the development of sustainable alternative fuels to replace fossil fuels has received serious attention because of the increasing world oil prices and environmental concerns. This study focused on the development of Dual Fluidized bed gasification technology, especially the cold model performance to obtain the hydrodynamic characteristics of bed material. The cold model performances are carried out at the Lab. Biomasa PTSEIK BPPT Gedung 625 Puspiptek Serpong. Bed material used is silica sand which is circulated externally from the combustor to the gasifier and vice versa through a loop seal. From this cold model performance test, the minimum fluidization velocity (Umf) of 400 μm silica bed material is 0,15 m/s, and the pressure difference (ΔP) between the fluidized bed and freeboard reactor is 3.5 kPa. In addition, in this cold model performance test, a bed material circulation has been carried out using a continuous method and a pulse method air flow. The results of this cold model performance test will be used as a reference in the operations of hot model Dual Fluidized Bed Gasification.