Solvent design and inherent safety assessment of solvent alternatives for palm oil recovery

Ahmad, Syaza Izyanni; Yunus, Nor Alafiza; Ali, Mohd.R. Akbar; Hashim, Haslenda; Mustaffa, Azizul Azri; Rashid, Roslina

doi:10.1016/j.jlp.2020.104120

Cited by 12 publications

(10 citation statements)

References 30 publications

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“…Finally, for toxicity parameter, Calcium phosphate is the most hazardous solvent with STOX of 99.7527 followed by calcium chloride and phosphoric acid with 99.7508 and 99.7505 respectively. The parameter value of toxicity for ethanol is similar to the values reported by Ahmad et al [18] for n-hexane widely used as solvent. After estimating the scores for each parameter, the CSTS was calculated using Equation 1 in order to illustrate the combination of fire, explosion and toxic release incidents.…”

Section: Chemical Safety Assessmentsupporting

confidence: 86%

See 1 more Smart Citation

Evaluation of Shrimp Waste Valorization Combining Computer Aided Simulation and Numerical Descriptive Inherent Safety Technique (NuDIST)

Zuorro¹,

Cassiani-Cassiani²,

Meza-González³

et al. 2020

Preprint

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Nowadays, inherently safer designs are considered as key priorities to prevent or mitigate serious incidents with devastating consequences. The need for process safety assessment during early design phases has motivated the development of several contributions related to computer-aided assessment methodologies in order to measure the inherent safety of chemical processes. In this work, the large-scale production of chitosan from shrimp wastes was evaluated from process safety point of view using the numerical descriptive inherent safety technique (NuDIST).To this end, simulation of the chitosan production was performed using Aspen Plus ® to obtain extended mass and energy balances. The assessment of all the chemicals involved within the process was carried out for the following safety parameters: explosivity (EXP), flammability (FL) and toxicity (TOX). The safety assessment of the process included the parameters of temperature (T), pressure (P) and heat of reaction (HR). The maximum chemical safety score was estimated in 171.01 with ethanol as main contributor to the parameter of explosivity and flammability. The score associated with operating data was calculated in 209.30 and heat of reaction reported to be the most affecting parameter. The NuDIST score was estimated in 380.30. This NuDIST value revealed the low hazards associated with the handling of substances such as shrimp wastes, chitosan and water, as well as the non-extreme temperature and pressure conditions. In general, the large-scale production of chitosan from shrimp shells showed to be an inherently safe alternative of waste valorization.

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Section: Chemical Safety Assessmentsupporting

confidence: 86%

“…Fermentative hydrogen production from food waste + [17] Palm oil recovery + [18] Furfural and Biogas production using pentoses + [19] Production of chitosan from shrimp wastes + + This work…”

Section: Referencementioning

confidence: 99%

Evaluation of Shrimp Waste Valorization Combining Computer Aided Simulation and Numerical Descriptive Inherent Safety Technique (NuDIST)

Zuorro¹,

Cassiani-Cassiani²,

Meza-González³

et al. 2020

Preprint

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“…According to Ahmad et al [14], the methyl methacrylate manufacturing process under six different routes reached a CSTS of around 240-342, which are significantly higher than those obtained in this work. For the recovery of palm oil using different solvents [18], the CSTS values ranged 191-198 when handling chemical substances such as cyclohexane, n-hexane, and 2-pentanone.…”

Section: Chemical Safety Assessmentmentioning

confidence: 99%

Evaluation of Shrimp Waste Valorization Combining Computer-Aided Simulation and Numerical Descriptive Inherent Safety Technique (NuDIST)

et al. 2020

View full text Add to dashboard Cite

Nowadays, inherently safer designs are considered as key priorities to prevent or mitigate serious incidents with devastating consequences. The need for process safety assessment during early design phases has motivated the development of several contributions related to computer-aided assessment methodologies to measure the inherent safety of chemical processes. In this work, the large-scale production of chitosan from shrimp wastes was evaluated from a process safety point of view using the numerical descriptive inherent safety technique (NuDIST). To this end, simulation of the chitosan production was performed using Aspen Plus ® to obtain extended mass and energy balances. The assessment of all the chemicals involved within the process was carried out for the following safety parameters: explosivity (EXP), flammability (FL), and toxicity (TOX). The safety assessment of the process included the parameters of temperature (T), pressure (P), and heat of reaction (HR). The maximum chemical safety score was estimated in 171.01 with ethanol as the main contributor to the parameters of explosivity and flammability. The score associated with operating data was calculated at 209.20 and heat of reaction reported to be the most affecting parameter. The NuDIST score was estimated at 380.20. This NuDIST value revealed the low hazards associated with the handling of substances such as shrimp wastes, chitosan, and water, as well as the non-extreme temperature and pressure conditions. In general, the large-scale production of chitosan from shrimp shells was shown to be an inherently safe alternative of waste valorization.

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“…Early hazard prevention during the chemical process design stage allows the development of processes inherently safer and more resistant to deviations or errors in operation without affecting the productivity or plant efficiency [25]. Hence, it is recommended that hazard elimination and risk reduction be carried out during the initial stage of process design [26].…”

Section: Inherent Safety Analysismentioning

confidence: 99%

Inherent safety Analysis and Sustainability Evaluation of Chitosan Production from Shrimp Exoskeleton in Colombia

Zuorro¹,

Moreno-Sader²,

González-Delgado³

2020

Preprint

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The recovery and valorization of waste are some of the key aspects of sustainable production. The crustacean exoskeletons can be potentially used to obtain value-added products such as chitosan. A comprehensive analysis including both safety and sustainability aspects of chitosan production from shrimp shells is presented in this study. The inherent safety analysis and sustainability evaluation was performed using the Inherent Safety Index (ISI) methodology and the Sustainable Weighted Return on Investment Metric (SWROIM), respectively. The process was designed for a processing capacity of 57,000 t/y according to shrimp production in Colombia. The economic (%ROI), environmental (PEI output), energy (exergy efficiency), and safety (ITI) technical parameters were included in the sustainability evaluation. The three first were obtained from the previous analysis performed by the authors. The total inherent safety index was estimated at 25 indicating that the process is inherently unsafe. The main process risks were given by the dangerous substance, reactivity, and inventory subindices. The overall sustainability evaluation showed a SWROIM of 36.23% indicating that the case study showed higher weighted performance compared to the return on investment (ROI) metric of 18.08%.

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Solvent design and inherent safety assessment of solvent alternatives for palm oil recovery

Cited by 12 publications

References 30 publications

Evaluation of Shrimp Waste Valorization Combining Computer Aided Simulation and Numerical Descriptive Inherent Safety Technique (NuDIST)

Evaluation of Shrimp Waste Valorization Combining Computer Aided Simulation and Numerical Descriptive Inherent Safety Technique (NuDIST)

Evaluation of Shrimp Waste Valorization Combining Computer-Aided Simulation and Numerical Descriptive Inherent Safety Technique (NuDIST)

Inherent safety Analysis and Sustainability Evaluation of Chitosan Production from Shrimp Exoskeleton in Colombia

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