Integration of qualitative and quantitative risk assessment methods for gas refinery plants

Yoon, Hyungjoon; Park, Jaedeuk; Lim, Wonsub; Lee, Kwanghee; Choi, Nakki; Lee, Chuljae; Moon, Il

doi:10.1007/s11814-013-0057-0

Cited by 5 publications

(4 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The lanthanum oxide that was not detected by XRD probably exists as nanoparticles or is amorphous in the perovskite structure. 49 As seen from Figure 3b, the structure of catalyst was preserved when it was used after the sonophoto Fenton-like oxidation of BPA. Although the peak intensities of carbonates groups (at 1400 cm −1 and 1455 cm −1 ) decreased slightly there are no additional peaks in the FT-IR analysis of the catalyst used.…”

Section: X-ray Diffraction Studiesmentioning

confidence: 89%

Degradation of bisphenol-a using a sonophoto Fenton-like hybrid process over a LaFeO$_{3}$ perovskite catalyst and a comparison of its activity with that of a TiO$_{2}$ photocatalyst

Dükkancı¹

2016

Turk J Chem

View full text Add to dashboard Cite

Oxidation of bisphenol-A (BPA) was investigated using a sonophoto Fenton-like hybrid process under visible light irradiation in the presence of iron-containing perovskite LaFeO 3 catalysts. For this purpose, firstly the perovskite catalyst (LaFeO 3) was prepared by the sol-gel method and calcined at different temperatures (500, 700, and 800 • C). The prepared catalysts were characterized using XRD, SEM, FTIR, nitrogen adsorption, UV-vis DRS, and ICP/OES measurements. Among the prepared catalysts the catalyst that was calcined at 500 • C showed better catalytic activity with respect to degradation and chemical oxygen demand (COD) reduction (of 21.8% and 11.2%, respectively, after 3 h of reaction duration) than the other catalysts calcined at 700 • C and 800 • C. The catalytic activity of the LaFeO 3 perovskite catalyst calcined at 500 • C was compared with that of a TiO 2 photocatalyst containing Fe and prepared by the sol-gel method. Better photocatalytic activity in terms of degradation of BPA, total organic carbon (TOC), and COD reductions was observed with the LaFeO 3 perovskite catalyst under visible light. The degradation, COD, and TOC reductions after 6 h of oxidation were 34.8%, 26.9%, and 8.8% for the LaFeO 3 perovskite catalyst, and 33.1%, 19.7%, and 4.9% for the Fe/TiO 2 catalyst, respectively.

show abstract

Section: X-ray Diffraction Studiesmentioning

confidence: 89%

Degradation of bisphenol-a using a sonophoto Fenton-like hybrid process over a LaFeO$_{3}$ perovskite catalyst and a comparison of its activity with that of a TiO$_{2}$ photocatalyst

Dükkancı¹

2016

Turk J Chem

View full text Add to dashboard Cite

show abstract

“…These protective measures are often called the protective layers or "protections" [4]. The safety function of these protections will greatly affect the safety integrity level of the chemical process.…”

Section: June 2015mentioning

confidence: 99%

“…In a specific accident scenario, the initiating event frequency, consequence severity, and the probability of failure on demand (PFD) for all of the independent protections are used to evaluate the possibility of accidents [4].…”

Section: Introductionmentioning

confidence: 99%

Study on risk assessment of chemical process based on an advanced layers of protection analysis method

Tong

Zong-zhi

Wang

et al. 2016

Korean J. Chem. Eng.

View full text Add to dashboard Cite

This paper focuses on an advanced layers of protection analysis (LOPA) method to assess the risk of a chemical process. Based on the chemical accident statistics between 2001 and 2014 in China, an acceptable risk function was built for chemical processes to confirm the acceptable risk value for an accident scenario. The assessment index for an emergency system was developed to assess the protective function of emergency protection based on analytic hierarchy process (AHP), and the probability of failure on demand (PFD) of emergency protection was obtained by fuzzy comprehensive assessment method and fuzzy set theory. The proposed method was applied to a methanol distillation installation. The result showed that the protections, including emergency protection, were sufficient because the probability of mitigation protection (1×10 −8 ) was less than the acceptable risk value (3.04×10 −7 ). The advanced LOPA method was proven to be able to improve the integrity and accuracy of traditional LOPA.

show abstract

“…Quantitative risk assessment in the processing industry is vital to protect workers and the environment [16]. Consequence analysis is a part of risk assessment, and its qualitative and quantitative methodologies help in estimating significant losses in the processing industry [17]. The accidental release of toxic gases, fire, explosions, and the dispersion of combustion products are some hazardous scenarios in processing industries [18].…”

Section: Introductionmentioning

confidence: 99%

Threat and Risk Analysis-Based Neural Network for a Chemical Explosion (TRANCE) Model to Predict Hazards in Petroleum Refinery

Gabhane

Rao

2023

Toxics

View full text Add to dashboard Cite

Risk analysis and prediction is a primary monitoring strategy to identify abnormal events occurring in chemical processes. The accidental release of toxic gases may result in severe problems for people and the environment. Risk analysis of hazardous chemicals using consequence modeling is essential to improve the process reliability and safety of the refineries. In petroleum refineries: toluene, hydrogen, isooctane, kerosene, methanol, and naphtha are key process plants with toxic and flammable chemicals. The major process plants considered for risk assessment in the refinery are the gasoline hydrotreatment unit, crude distillation, aromatic recovery, continuous catalytic reformer, methyl–tert–butyl–ether, and kerosene merox units. Additionally, we propose a threat and risk analysis neural network for the chemical explosion (TRANCE) model for refinery incident scenarios. Significantly, 160 attributes were collected for the modeling on the basis of the significance of failure and hazardous chemical leaks in the refinery. Hazard analysis shows that the leakages of hydrogen and gasoline at the gasoline hydrotreatment unit, kerosene at the kerosene merox plant, and crude oil at crude-distillation units were areas of profound concern. The developed TRANCE model predicted the chemical explosion distance with an R2 accuracy value of 0.9994 and MSE of 679.5343.

show abstract

Integration of qualitative and quantitative risk assessment methods for gas refinery plants

Cited by 5 publications

References 13 publications

Degradation of bisphenol-a using a sonophoto Fenton-like hybrid process over a LaFeO$_{3}$ perovskite catalyst and a comparison of its activity with that of a TiO$_{2}$ photocatalyst

Degradation of bisphenol-a using a sonophoto Fenton-like hybrid process over a LaFeO$_{3}$ perovskite catalyst and a comparison of its activity with that of a TiO$_{2}$ photocatalyst

Study on risk assessment of chemical process based on an advanced layers of protection analysis method

Threat and Risk Analysis-Based Neural Network for a Chemical Explosion (TRANCE) Model to Predict Hazards in Petroleum Refinery

Contact Info

Product

Resources

About