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Open Access

ARTICLE

A Gasification Technology to Combine Oil Sludge with Coal–Water Slurry: CFD Analysis and Performance Determination

Xulei Wu1, Hailong Yu1,*, Panrong Wu1, Chaoqian Wang1, Haiqun Chen1, Yunlan Sun1, He Zheng2
1 School of Petroleum Engineering, Changzhou University, Changzhou, China
2 Sinopec East China Petroleum Engineering Company, Nanjing, China
* Corresponding Author: Hailong Yu. Email: email

Fluid Dynamics & Materials Processing https://doi.org/10.32604/fdmp.2024.047092

Received 24 October 2023; Accepted 30 January 2024; Published online 18 March 2024

Abstract

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/%.

Keywords

Oil sludge; coal water slurry; gasification; numerical simulation; fluent

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