Production Of Syngas From Natural Gas In Non-catalytic Condition: Modeling And Optimization

Non-catalytic partial oxidation of methane for the production of ammonia syngas has been studied over a 6.0 MPa Shell gasification furnace, which was originally applied for gasification of residue oil at vacuum. The short-circuit and mixed model was used to simulate reaction processes. The relation between the temperature, the concentration of all components (CO, H2, CO2 and CH4) and the ratio of oxygen and natural gas, steam amount added to the furnace was investigated. The influence of reaction conditions on syngas production was also discussed. Combined with the practical operations, the optimum reaction conditions were obtained. At the same steam added to the furnace, the optimum exit temperature of the gasification furnace was 1250 to 1320 oC. The optimum ratio of oxygen and natural gas was 0.60 to 0.64 (NM3/NM3).The present investigation confirmed that the short-circuit and mixed model can be also applied for the natural gas furnace. After several years industrial operations, the theoretical results were confirmed and will be very helpful for further industrial applications.