TY  - EJOU
AU  - Wu, Xulei 
AU  - Yu, Hailong 
AU  - Wu, Panrong 
AU  - Wang, Chaoqian 
AU  - Chen, Haiqun 
AU  - Sun, Yunlan 
AU  - Zheng, He 

TI  - A Gasification Technology to Combine Oil Sludge with Coal–Water Slurry: CFD Analysis and Performance Determination
T2  - Fluid Dynamics \& Materials Processing

PY  - 2024
VL  - 20
IS  - 7
SN  - 1555-2578

AB  - The development of more environment-friendly ways to dispose of oil sludge is currently regarded as a hot topic. In this context, gasification technologies are generally seen as a promising way to combine oil sludge with coal–water slurry (CWS) and generate resourceful fuel. In this study, a novel five-nozzle gasifier reactor was analyzed by means of a CFD (Computational fluid dynamic) method. Among several influential factors, special attention was paid to the height-to-diameter ratio of the gasifier and the mixing ratio of oil sludge, which are known to have a significant impact on the flow field, temperature distribution and gasifier performances. According to the numerical results, the optimal height-to-diameter ratio and oil mixing ratio are about 2.4:1 and 20%, respectively. Furthermore, the carbon conversion rate can become as high as 98.55% with the hydrolysis rate reaching a value of 53.88%. The consumption of raw coal and oxygen is generally reduced, while the effective gas production is increased to 50.93 mol/%.
KW  - Oil sludge; coal water slurry; gasification; numerical simulation; fluent

DO  - 10.32604/fdmp.2024.047092