EVALUATION AND MODELING OF FOULING CHARACTERISTICS OF PETROLEUM CRUDE OILS AND CRUDE BLENDS

Fouling of preheat exchangers in refinery crude distillation unit is a complex phenomena and identified to be the major energy consuming source in petroleum refineries. The cost of fouling could be substantial where it comprises the economics and environmental aspect. In this research work, four...

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Main Author: RAFEEN, MOHAMMAD SYAMZARI
Format: Thesis
Language:English
Published: 2011
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Online Access:http://utpedia.utp.edu.my/7356/1/2011%20-%20Evaluation%20And%20Modeling%20Of%20Foulding%20Characteristics%20Of%20Petroleum%20Crude%20Oils%20And%20Crude%20Blen.pdf
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Institution: Universiti Teknologi Petronas
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spelling my-utp-utpedia.73562017-01-25T09:42:32Z http://utpedia.utp.edu.my/7356/ EVALUATION AND MODELING OF FOULING CHARACTERISTICS OF PETROLEUM CRUDE OILS AND CRUDE BLENDS RAFEEN, MOHAMMAD SYAMZARI TP Chemical technology Fouling of preheat exchangers in refinery crude distillation unit is a complex phenomena and identified to be the major energy consuming source in petroleum refineries. The cost of fouling could be substantial where it comprises the economics and environmental aspect. In this research work, four Malaysian crude oils and a condensate were selected for fouling experiments using Hot Liquid Process Simulator (HLPS). The experiments were conducted to determine the effect of surface temperature and crude blending on the fouling characteristics of the selected crudes and crude blends. A method published in the literature is used to analyze the raw data into a meaningful fouling resistance data. Initial fouling rates are then determined by taking the slope for the linear portion of the fouling resistance versus time curve. Arrhenius plot was used to obtain the true activation energy, E so that the fouling propensity could be determined. Crude ranking in term of fouling propensity for the neat crude is in the order of Crude C > Crude D > Crude B > Crude A and for the crude blend, it is in the order of A-C blend> A-D blend> A-B blend. The effect of adding Condensate E to Crude C has resulted in the lowest activation energy in comparison with the other crudes and crude blends. Four threshold fouling models were validated with the experimental data established. The models evaluated are Ebert and Panchal model, Panchal eta!. model, Polley eta!. model and Nasr and Givi model. Furthermore, three estimation methods were used for each model which are (i) estimation method I - physical properties estimated at inlet bulk temperature, (ii) estimation method 2 - physical properties estimated at film temperature or surface temperature (for Polley eta!. model only) and (iii) estimation method 3 - physical properties estimated at film temperature or surface temperature (for Polley eta!. model only) plus the exclusion of removal term. Model parameters were estimated using least square technique to minimize the error between the predicted and experimental data. 2011-02 Thesis NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/7356/1/2011%20-%20Evaluation%20And%20Modeling%20Of%20Foulding%20Characteristics%20Of%20Petroleum%20Crude%20Oils%20And%20Crude%20Blen.pdf RAFEEN, MOHAMMAD SYAMZARI (2011) EVALUATION AND MODELING OF FOULING CHARACTERISTICS OF PETROLEUM CRUDE OILS AND CRUDE BLENDS. Masters thesis, Universiti Teknologi Petronas.
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Electronic and Digitized Intellectual Asset
url_provider http://utpedia.utp.edu.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
RAFEEN, MOHAMMAD SYAMZARI
EVALUATION AND MODELING OF FOULING CHARACTERISTICS OF PETROLEUM CRUDE OILS AND CRUDE BLENDS
description Fouling of preheat exchangers in refinery crude distillation unit is a complex phenomena and identified to be the major energy consuming source in petroleum refineries. The cost of fouling could be substantial where it comprises the economics and environmental aspect. In this research work, four Malaysian crude oils and a condensate were selected for fouling experiments using Hot Liquid Process Simulator (HLPS). The experiments were conducted to determine the effect of surface temperature and crude blending on the fouling characteristics of the selected crudes and crude blends. A method published in the literature is used to analyze the raw data into a meaningful fouling resistance data. Initial fouling rates are then determined by taking the slope for the linear portion of the fouling resistance versus time curve. Arrhenius plot was used to obtain the true activation energy, E so that the fouling propensity could be determined. Crude ranking in term of fouling propensity for the neat crude is in the order of Crude C > Crude D > Crude B > Crude A and for the crude blend, it is in the order of A-C blend> A-D blend> A-B blend. The effect of adding Condensate E to Crude C has resulted in the lowest activation energy in comparison with the other crudes and crude blends. Four threshold fouling models were validated with the experimental data established. The models evaluated are Ebert and Panchal model, Panchal eta!. model, Polley eta!. model and Nasr and Givi model. Furthermore, three estimation methods were used for each model which are (i) estimation method I - physical properties estimated at inlet bulk temperature, (ii) estimation method 2 - physical properties estimated at film temperature or surface temperature (for Polley eta!. model only) and (iii) estimation method 3 - physical properties estimated at film temperature or surface temperature (for Polley eta!. model only) plus the exclusion of removal term. Model parameters were estimated using least square technique to minimize the error between the predicted and experimental data.
format Thesis
author RAFEEN, MOHAMMAD SYAMZARI
author_facet RAFEEN, MOHAMMAD SYAMZARI
author_sort RAFEEN, MOHAMMAD SYAMZARI
title EVALUATION AND MODELING OF FOULING CHARACTERISTICS OF PETROLEUM CRUDE OILS AND CRUDE BLENDS
title_short EVALUATION AND MODELING OF FOULING CHARACTERISTICS OF PETROLEUM CRUDE OILS AND CRUDE BLENDS
title_full EVALUATION AND MODELING OF FOULING CHARACTERISTICS OF PETROLEUM CRUDE OILS AND CRUDE BLENDS
title_fullStr EVALUATION AND MODELING OF FOULING CHARACTERISTICS OF PETROLEUM CRUDE OILS AND CRUDE BLENDS
title_full_unstemmed EVALUATION AND MODELING OF FOULING CHARACTERISTICS OF PETROLEUM CRUDE OILS AND CRUDE BLENDS
title_sort evaluation and modeling of fouling characteristics of petroleum crude oils and crude blends
publishDate 2011
url http://utpedia.utp.edu.my/7356/1/2011%20-%20Evaluation%20And%20Modeling%20Of%20Foulding%20Characteristics%20Of%20Petroleum%20Crude%20Oils%20And%20Crude%20Blen.pdf
http://utpedia.utp.edu.my/7356/
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