Simulation Research on Coal-Water Slurry Gasification of Oil-Based Drill Cuttings Based on Fluent

In this paper, based on Fluent software, a five-nozzle gasifier reactor was established to simulate the gasification process of oil-based drill cuttings coal-water slurry. The influence of concentration and oxygen/carbon atomic ratio on the gasification process of oil-based drill cuttings coal-water slurry was investigated. The results show that when the oxygen flow is constant, the outlet temperature of gasifier decreases, the content of effective gas increases, and the carbon conversion rate decreases with the increase of concentration; When the ratio of oxygen to carbon atoms is constant, the effective gas content rises and the temperature rises with the increase of the concentration, and the carbon conversion rate reaches the maximum value when the concentration of oil-based drill cuttings coal-water slurry is 65%; When the concentration is constant, the effective gas content decreases and the outlet temperature rises with the increase of the oxygen/carbon atom ratio, and the carbon conversion rate reaches 99.80% when the oxygen/carbon atom ratio is 1.03. It shows that this method can effectively decompose the organic matter in oil-based drill cuttings and realize the efficient and cooperative treatment of oil-based drill cuttings.