title: Quantitative risk assessment integrated with process simulator for a new technology of methanol production plant using recycled CO₂.
abstract: The use of process simulators can contribute with quantitative risk assessment (QRA) by minimizing expert time and large volume of data, being mandatory in the case of a future plant. This work illustrates the advantages of this association by integrating UNISIM DESIGN simulation and QRA to investigate the acceptability of a new technology of a Methanol Production Plant in a region. The simulated process was based on the hydrogenation of chemically sequestered carbon dioxide, demanding stringent operational conditions (high pressures and temperatures) and involving the production of hazardous materials. The estimation of the consequences was performed using the PHAST software, version 6.51. QRA results were expressed in terms of individual and social risks. Compared to existing tolerance levels, the risks were considered tolerable in nominal conditions of operation of the plant. The use of the simulator in association with the QRA also allowed testing the risk in new operating conditions in order to delimit safe regions for the plant.
authors.affiliation: School of Chemistry, Department of Chemical Engineering, Federal University of Rio de Janeiro, Av. Athos da Silveira Ramos, 149, 21949-909 Rio de Janeiro, Brazil. Electronic address: juliadip@gmail.com.
authors.forename: Julia
authors.initials: J
authors.lastname: Di Domenico
authors.affiliation: School of Chemistry, Department of Chemical Engineering, Federal University of Rio de Janeiro, Av. Athos da Silveira Ramos, 149, 21949-909 Rio de Janeiro, Brazil.
authors.forename: Carlos André
authors.initials: CA
authors.lastname: Vaz
authors.affiliation: School of Chemistry, Department of Chemical Engineering, Federal University of Rio de Janeiro, Av. Athos da Silveira Ramos, 149, 21949-909 Rio de Janeiro, Brazil.
authors.forename: Maurício Bezerra
authors.initials: MB
authors.lastname: de Souza
mesh_terms: D002245:Carbon Dioxide / Q000737:chemistry*; D057965:Carbon Sequestration; D055884:Chemical Hazard Release; D000432:Methanol / Q000737:chemistry*; D008962:Models, Theoretical; D059027:Recycling; D018570:Risk Assessment; D012984:Software
chemical_list: D002245:Carbon Dioxide; D000432:Methanol
keywords: Consequence estimation; Design; Methanol synthesis; Quantitative risk assessment; Recycled CO(2); Simulation