Unravelling the relation between processed crude oils and the composition of spent caustic effluents as well as the respective economic impact

Rita, Ana; Monteiro, Alda Lúcia Gomes; Albuquerque, R.M.; Santos, Maria António; Ribeiro, Jorge C.; Madeira, Luís M.; Sanches, Sandra

doi:10.1016/j.jhazmat.2021.126629

Cited by 4 publications

(4 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These acidic substances include phenol, cyanide, organic acids, residual H2S, and CO2.The most frequent pollutants found in used caustic are sulfides, phenols, cyanide, H2S, and RSH (mercaptans). The composition of used caustic effluents varies depending on the production process (Rita et al, 2022).…”

Section: Spent Caustic Effluentmentioning

confidence: 99%

Effluent Management in Oil and Gas Extraction

Umar,

Enejoh,

Jibrin

2023

ejtas

View full text Add to dashboard Cite

The oil and gas industry is characterized by petrochemical industrial wastewater known basically as effluent, which typically contains various organic and inorganic components, naturally present or added during oil and gas processes. Thus, proper management or treatment is needed for reuse, discharge, or final disposal requiring complexity of the wastewater composition needing stringent discharge procedures, standards requiring combinations of treatment methods. Effluent being a complex mixture of different organic and inorganic compounds (mostly salts, minerals, gas and oils), is majorly generated during oil/gas production. The volume of effluent is increasing around the world, and as a consequence, its discharge to the environment is one of the global concerns. The various methods of effluent management have their own advantages and disadvantages when used for offshore or onshore units. However, comprehensive and deep-understanding of each issue can provide a guideline for better and more practical solutions to its management. In this work, various physical and chemical treatment methods are reviewed and the most effective recommended to proper effluent management that meets all international standard and enhances sustainability. In this study the Pre-treatment, treatment and post treatment approaches employed reduced the amount of impurities present in the effluent with varying pH of 7.2 and 7.8, COD of 30 and 60mg/L, BOD value of 45 and 54 respectively, TSS value of 80 and 60mg/L and TDS of 5200 and 4800.

show abstract

Section: Spent Caustic Effluentmentioning

confidence: 99%

Effluent Management in Oil and Gas Extraction

Umar,

Enejoh,

Jibrin

2023

ejtas

View full text Add to dashboard Cite

show abstract

“…Spent caustic is produced when acidic components from hydrocarbon streams are extracted. These acidic compounds include residual H 2 S, organic acids, phenol, cyanide, and CO 2 [23].…”

Section: Spent Caustic Effluentmentioning

confidence: 99%

“…The common contaminants present in spent caustic are sulfides, phenols, cyanide, H 2 S, and RSH (mercaptans). Depending on the manufacturing process, spent caustic effluents vary in their composition [23].…”

Section: Spent Caustic Effluentmentioning

confidence: 99%

Characterization and assessment of process water from oil and gas production: A case study of process wastewater in Qatar

Eldos

Khan

Zouari

et al. 2022

Case Studies in Chemical and Environmental Engineering

View full text Add to dashboard Cite

“…For the membranes aged for 6 and 12 weeks, phenolic compound removals reached 91.3% and 78.9%, respectively, which are much lower than the pristine membrane performance (98.1%) (Figure 2B). It should be noted that phenolic compounds are the target compound class with the lowest MW of all (180-220 Da) [42]; therefore, it may be deduced that the more significant loss of retention is for phenolic compounds. The decrease in their rejection is aligned with the decrease in membrane retentive properties and increase in membrane permeability, which may be related to swelling effects [37].…”

Section: Nf Tests To Evaluate Membrane Performancementioning

confidence: 99%

Assessment of the Potential of Using Nanofiltration Polymeric and Ceramic Membranes to Treat Refinery Spent Caustic Effluents

et al. 2022

View full text Add to dashboard Cite

Spent caustic effluents are very challenging due to their very hazardous nature in terms of toxicity as well as their extreme pH (approximately 12–14). Spent caustic has presented a challenge for wastewater treatment in refineries, due to its composition rich in mercaptans, sulfides and other aromatic compounds. To address such problems, membrane filtration was studied using real effluents from Sines Refinery, in Portugal. The present study attempts to assess the potential for spent caustic treatment with nanofiltration (NF) polymeric and ceramic membranes, assessing membrane life expectancy. For that, membrane aging studies in static mode were performed with the polymeric membrane before attempting NF treatment (dynamic studies). A ceramic membrane was also tested for the first time with this type of effluents, though only in dynamic mode. Although the polymeric membrane performance was very good and in accordance with previous studies, its lifespan was very reduced after 6 weeks of contact with spent caustic, compromising its use in an industrial unit. Contrarily to expectations, the ceramic membrane tested was not chemically more resistant than the polymeric one upon direct contact with spent caustic (loss of retention capacity in less than 1 h in contact with the spent caustic). The results obtained suggest that a pH of 13.9 is very aggressive, even for ceramic membranes.

show abstract

Unravelling the relation between processed crude oils and the composition of spent caustic effluents as well as the respective economic impact

Cited by 4 publications

References 34 publications

Effluent Management in Oil and Gas Extraction

Effluent Management in Oil and Gas Extraction

Characterization and assessment of process water from oil and gas production: A case study of process wastewater in Qatar

Assessment of the Potential of Using Nanofiltration Polymeric and Ceramic Membranes to Treat Refinery Spent Caustic Effluents

Contact Info

Product

Resources

About