Optimization of an integrated system for refinery wastewater treatment

Almasi, Ali; Yavari, Leila; Mohammadi, Mitra; Mousavi, Seyyed Alireza

doi:10.1080/15569543.2018.1550424

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Toxin Reviews

2019

DOI: 10.1080/15569543.2018.1550424

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Optimization of an integrated system for refinery wastewater treatment

Ali Almasi

Leila Yavari

Mitra Mohammadi

et al.

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Cited by 3 publications

References 33 publications

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Treatment of petroleum refinery wastewater by chemical coagulation method: determination of optimum removal conditions using experimental design

Ayhan,

Aldemir,

Özgüven

2023

Braz. J. Chem. Eng.

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Treatment of petroleum refinery wastewater by chemical coagulation method: determination of optimum removal conditions using experimental design

Ayhan,

Aldemir,

Özgüven

2023

Braz. J. Chem. Eng.

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Studying the kinetics mechanism of emulsified petroleum products recovery from waste waters in dynamic conditions

Старостина

Polovneva

Porozhnyuk

et al. 2021

IOP Conf. Ser.: Mater. Sci. Eng.

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Petroleum products belong to the most common man-made pollutants of surface watercourses, and sometimes even underground drinking water sources. They get to the environment at the extraction and transportation of oil and oil products, as well as at industrial disasters. The oil-contaminated sewage waters produce the general-toxic, embryotoxic and carcinogenic effect, and weaken the immune system. To purify wastewaters from petroleum products the most efficient and environmentally friendly is the sorption method. This paper considers using a carbon-containing material, obtained by thermal modification at 450°C of waste kieselguhr sludge from vegetable oil extraction industry, as petroleum sorbent. The designed sorbent is characterized with mesoporous structure, high hydrophobic properties and the presence of oxygen-containing functional groups – carboxyl, hydroxyl and lactone – on the carbon layer surface. Research has been carried out in purification of test water media from emulsified petroleum products in dynamic conditions with the use of the designed sorbent. The number of passed sorption volumes to the «breakthrough» and the full saturation of the sorbent with oil products were determined. The calculated dynamic exchange capacity of the sorbent for petroleum products is 2.9 mg/g, the total exchange capacity – 8.4 mg/g. The limiting stage of petroleum products sorption process kinetics with the carbon-containing sorption material in the studied conditions is diffusion inside the sorbent grains.

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Approach to Chemical Process Transition Control via Regulatory Controllers with the Case of a Throughput Fluctuating Ethylene Column

Huang,

Liu,

Chen

et al. 2024

Processes

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For chemical processes, dynamic optimization is employed for process transition. On the basis of the multilayer control structure, the employment of dynamic optimization is affected by the regulatory control system. To avoid the adjustment of the regulatory control system, set-point optimization is proposed. For comparison, two types of optimization models, namely direct optimization and set-point optimization, are formulated. The superiority of set-point optimization is rigorously proven. By simulating the commercial process of a throughput-fluctuating ethylene column, the integrated absolute error and maximum deviation of product quality are reduced by more than 150% with set-point optimization. The results indicate that the approach to process transition via regulatory controllers not only avoids the insecurity caused by the switching of set-point controllers but also improves the optimization performance. In conclusion, the proposed optimization structure, namely set-point optimization, is operable and stable for commercial chemical process transitions.

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Optimization of an integrated system for refinery wastewater treatment

Cited by 3 publications

References 33 publications

Treatment of petroleum refinery wastewater by chemical coagulation method: determination of optimum removal conditions using experimental design

Treatment of petroleum refinery wastewater by chemical coagulation method: determination of optimum removal conditions using experimental design

Studying the kinetics mechanism of emulsified petroleum products recovery from waste waters in dynamic conditions

Approach to Chemical Process Transition Control via Regulatory Controllers with the Case of a Throughput Fluctuating Ethylene Column

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