The objective of this study was to identify the impact of the coke handling and storage system on the emission of PM10 particulate material.The methodology was based on AP-42 emission factors from U.S.EPA(United State...The objective of this study was to identify the impact of the coke handling and storage system on the emission of PM10 particulate material.The methodology was based on AP-42 emission factors from U.S.EPA(United States Environmental Protection Agency)for the calculation of PM10 emissions from operations in the handling and storage of petroleum coke in an oil refinery in the northeastern of Brazil.The knowledge of the emission potential of each operation of the coke handling and storage system allows the adoption of more effective control measures,contributing to the effective reduction of PM10 emissions in this system.To complement the environmental impact assessment of each configuration,an air quality modelling was performed using the atmospheric dispersion software.The comparison performed in this study enables authors to conclude,even for a totally mechanic system,that adopts control measures,PM10 emissions are low when confronted with the remaining sources of an oil refinery.By analyzing emissions from automated systems operation(scenario 1),it can be observed that the source with higher emission potential is the stockpile,which represents 60%of the system’s emission.Transfer and transport operations by conveyor belts together correspond to 40%of emissions.Even though transfer operations also represent a significant part(27%),they are not clustered in a unique point,making these emissions abatement difficult.The same is valid for transport using conveyor belts.Emissions from the piles are really the most significant.For this reason,this work concentrated efforts in the storage area,the ones that motivate the majority of studies relating to abatement technologies.展开更多
Petroleum coke with high sulfur has high fixed carbon, high heating value and low ash content.Using it as fuel may not only alleviate energy shortage,but also convert it into a useful material.Its combustion character...Petroleum coke with high sulfur has high fixed carbon, high heating value and low ash content.Using it as fuel may not only alleviate energy shortage,but also convert it into a useful material.Its combustion characteristics and pollutant emission are not very clear.This paper investigates the combustion characteristics and pollutant emission of petroleum coke in circulating fluidized bed boiler.The results show that petroleum coke with high sulfur can be used as a fuel in industry,its combustion is stable and pollutant emission satisfies national environmental standard.展开更多
文摘The objective of this study was to identify the impact of the coke handling and storage system on the emission of PM10 particulate material.The methodology was based on AP-42 emission factors from U.S.EPA(United States Environmental Protection Agency)for the calculation of PM10 emissions from operations in the handling and storage of petroleum coke in an oil refinery in the northeastern of Brazil.The knowledge of the emission potential of each operation of the coke handling and storage system allows the adoption of more effective control measures,contributing to the effective reduction of PM10 emissions in this system.To complement the environmental impact assessment of each configuration,an air quality modelling was performed using the atmospheric dispersion software.The comparison performed in this study enables authors to conclude,even for a totally mechanic system,that adopts control measures,PM10 emissions are low when confronted with the remaining sources of an oil refinery.By analyzing emissions from automated systems operation(scenario 1),it can be observed that the source with higher emission potential is the stockpile,which represents 60%of the system’s emission.Transfer and transport operations by conveyor belts together correspond to 40%of emissions.Even though transfer operations also represent a significant part(27%),they are not clustered in a unique point,making these emissions abatement difficult.The same is valid for transport using conveyor belts.Emissions from the piles are really the most significant.For this reason,this work concentrated efforts in the storage area,the ones that motivate the majority of studies relating to abatement technologies.
文摘Petroleum coke with high sulfur has high fixed carbon, high heating value and low ash content.Using it as fuel may not only alleviate energy shortage,but also convert it into a useful material.Its combustion characteristics and pollutant emission are not very clear.This paper investigates the combustion characteristics and pollutant emission of petroleum coke in circulating fluidized bed boiler.The results show that petroleum coke with high sulfur can be used as a fuel in industry,its combustion is stable and pollutant emission satisfies national environmental standard.
