The Effect of Change in Feed Viscosity and Pollutant Temperature of Heavy Viscosity Oil (HVO) Production Unit on CO Emission with reducing energy consumption

Shafaee, Seyed  Baher; Nabi Bidhendi, Gholamreza; Karbassi, Abdolreza; Amiri, Mohammadjavad

The Effect of Change in Feed Viscosity and Pollutant Temperature of Heavy Viscosity Oil (HVO) Production Unit on CO Emission with reducing energy consumption

Document Type : Original Article

Authors

Seyed Baher Shafaee ¹

Gholamreza Nabi Bidhendi ²

Abdolreza Karbassi ³

Mohammadjavad Amiri ⁴

¹ سید خندان، خیابان خواجه عبدالله انصاری، خیابان شهید عراقی، پلاک 7، طبقه اول

² Professor ,School of Environment, College of Engineering, University of Tehran,Tehran – Iran

³ Associate professor,School of Environment,College of Engineering,University of Tehran,Tehran – Iran

⁴ Assistant professor, School of Environment,College of Engineering,University of Tehran,Tehran –Iran

Abstract

The HVO production unit is one of the refineries' pollutant units, which often has a CO, THC, NOx, SOx and CO emissions higher than the standard limits. By investigating the operational parameters and determining their effect on pollutants, the viscosity of the feed was determined as one of the important parameters and evaluation measure. The emitted amount of CO pollutant was measured in several feeds with different viscosity characteristics, by decreasing the pollutants temperature, changing combustion chamber temperature(energy consumption)and adjusting other process and production conditions in two product categories: HHVO, LHVO. The amount of CO pollutant emission from LHVO production process is far less than the HHVO production and this amount is reduced by increasing the viscosity of the feed and reducing the outlet pollutant temperature of the reactor. For example the amount of CO emission in same operational condition is 1280 mg/nm3 for LHVO process but for HHVO process is 1740 mg/nm3 and the amount of this pollutant is 1619 mg/nm3 for HHVO process in normal emission process but decrees of pollutants temperature has resulted in decrease of emission to 690 mg/nm3. Finally, the results was analyzed and reported in accordance with the specified parameters.

Keywords

"CO pollutant emission"

"HVO heavy oil product"

"pollutant temperature"

" reducing energy consumption "