Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Comparison of temperature profiles and molar composition in the gasification of petroleum sludge.
Submission Author:
Hiago David Zogbi Silva Oliveira , RJ
Co-Authors:
Hiago David Zogbi Silva Oliveira, Leandro Alcoforado Sphaier, Isabela Florindo Pinheiro, York Castillo Santiago
Presenter: Hiago David Zogbi Silva Oliveira
doi://10.26678/ABCM.COBEM2023.COB2023-0159
Abstract
Petroleum is composed of heavy-chain hydrocarbons, with treatment and refining processes occurring on a large scale in the petrochemical industry. Among various contaminating residues, petroleum sludge is prevalent, a highly stable emulsion of oil, water, and heavy metals, exhibiting significant energy potential. This study investigates and simulates the gasification of petroleum sludge, a thermochemical conversion process of carbonaceous materials into low- or medium-calorific value gases or intermediate agents for various gasifying agents. Hence, this article aims to comprehend the behavior of the gasification process under dif erent conditions. Gasification cases using pure oxygen streams and atmospheric air are examined. The collected data are compared to analyze the temperature profiles along the bed and the molar fraction profiles of CH4 and CO production in the system. For this purpose, a numerical implementation is conducted and validated using the CeSFaMB software (Comprehensive Simulation of Fluidized and Moving Bed Equipment). The temperature profiles reached 1698.7 K and 1365 K, respectively, for oxygen gasification and atmospheric air gasification cases. For the pure oxygen bed, a CO volume fraction of 28% and CH4 volume fraction of 1.7% are achieved. Meanwhile, for the atmospheric air bed, a CO volume fraction of 12% and CH4 volume fraction of 4% are attained. Carbon conversion to oxygen as an oxidizing agent reached approximately 97.78% for pure oxygen and 69.80% for atmospheric air. The temperature profiles fell within typical ranges for fluidized bed reactors, and the concentration profiles exhibited typical CO and CO2 production behaviors as a function of oxygen consumption in the exothermic reactions involved.
Keywords
Petroleum, Gasification, production, Oil sludge, Simulation, studies, Thermal treatment
