Work

Reutilization of regenerated exhaust gas from the centrifugation-filtration coupled purification system: a closed-loop process

Year: 2026

Type: article

Abstract: The regenerated exhaust gas was reutilized to configure a centrifugation-filtration coupled purification system (CFCPS), aiming to achieve a closed-loop gas purification process. It can be foreseen that this optimization will bring objective economic savings without sacrificing separation efficiency. A series of typical tests were carried out to analyze the influence of the reutilized exhaust gas on the pressure drop and the separation efficiency. Compared with the purification system without the reutilized exhaust gas, the purifier exhibited optimal performance at Q = 800 m 3 /h, RV = 25%, and C i = 30.24 g/m 3 . Notably, the median size of outlet particles decreased from 1.67 μm to 0.82∼1.04 μm and the size range was narrowed when the exhaust gas was recycled. Moreover, the grade efficiency of the dust particles below 3 μm was improved significantly with reutilization. The study indicates that the exhaust gas reutilization is an effective means to solve particle pollution, and further measurements are needed.

Source: Petroleum Science

DOI: 10.1016/j.petsci.2026.01.002

Authors: Ming Chang, Xin-Lei Li, Yu-Qin Han, Yi-Ping Fan, Chun-Xi Lu

Institutions: China University of Petroleum, Beijing, State Key Laboratory of Heavy Oil

Language: English

Topic: Cyclone Separators and Fluid Dynamics

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: diamond

Funders: National Natural Science Foundation of China, Science Foundation of China University of Petroleum, Beijing