بهینه‌سازی جداسازی آسفالتین از باقیمانده برج تقطیر در خلأ با استفاده از استخراج مایع-مایع به روش سطح-پاسخ

نوع مقاله : مقاله پژوهشی

نویسندگان

1 مهندسی فرایند، شرکت پالایش نفت شازند، اراک، ایران

2 گروه مهندسی شیمی، دانشکده فنی و مهندسی، دانشگاه اراک، ایران

3 گروه مهندسی شیمی، شرکت اکسیرپویان، اراک، ایران

10.22078/pr.2022.4733.3125

چکیده

در این پژوهش، بهینه‌سازی فرآیند جداسازی آسفالتین از باقی‌مانده برج تقطیر خلأ با استفاده از حلال‌های صنعتی نرمال پنتان، هگزان و هپتان انجام شده است. از طراحی مرکب مرکزی به ‌عنوان یکی از روش‌های طراحی آزمایش سطح-پاسخ، برای بهینه‌سازی فرآیند استفاده شده است. درصد وزنی آسفالتین باقیمانده و درصد بازدهی نفت آسفالتین‌زدایی شده تحت شرایط بهینه اقتصادی (حلال نرمال هگزان، نسبت حلال به خوراک برابر با mL/g 9/5 و دمای استخراج C° 25) به ترتیب 447/0 و 48% حاصل شدند. تحلیل نتایج نشان داد که مدل درجه دوم پاسخ برای پارامترهای مورد مطالعه قابل ‌قبول است و مطابقت زیادی بین مدل ریاضی و داده‌های آزمایشگاهی وجود دارد. به‌علاوه، طبق آنالیز واریانس، دمای استخراج و برهم‌کنش درجه دوم پارامتر نسبت حلال به خوراک، تأثیر چشمگیری بر درصد وزنی آسفالتین دارند. علاوه بر این، نتایج نشان داد که رویکرد معرفی‌شده یک روش کارآمد و اقتصادی برای افزایش ظرفیت واحد شکست کاتالیستی باقیمانده‌ها و تولید قیر مرغوب می‌باشد.
 

کلیدواژه‌ها


عنوان مقاله [English]

Optimization of Asphaltenes Separation from Vacuum Distillation Residue using Liquid-Liquid Extraction by Response-surface Method

نویسندگان [English]

  • reza Asgari 1
  • Vahab Ghaleh Khondabi 2
  • Alireza Fazlali 2
  • Mahmoodreza Nikkholgh 3
  • Abdoreza Moghadassi 2
1 Process Engineer, Shazand Oil Refinery Co., Arak, Iran
2 Chemical Engineering Department, Faculty of Engineering, Arak University, Iran
3 Process Engineer, Exir Pooyan Co., Arak, Iran
چکیده [English]

This investigation studied the separation of asphaltenes from the vacuum bottom, using industrial solvents such as normal pentane, hexane, and heptane. The central composite design (CCD) as a response surface methodology (RSM) method was applied to optimize the process. The weight percentage of asphaltene and the yield of de-asphalted oil (DAO) had been achieved at 0.447 and 48%, respectively, under optimum economic conditions (normal hexane solvent, solvent to feed ratio of 9.5 mL/g, and extraction temperature of 25 °C). The statistical study indicated that the response surface quadratic model for the mentioned parameters was significant and a perfect correlation between the statistical model and experimental data was found. Furthermore, according to an analysis of variance (ANOVA), the temperature of extraction and the quadratic interaction of the solvent to feed ratio parameter have shown a significant impact on the weight percentage of asphaltene. In general, the results suggest that the introduced approach is an efficient and economical technique to increase residual fluid catalytic cracking unit (RFCC) capacity and production of high-quality bitumen.
 

کلیدواژه‌ها [English]

  • Bitumen
  • De-asphalted oil
  • Industrial solvents
  • Optimization
  • Solvent de-asphalting
  • Vacuum bottom
[1]. Jafari Behbahani T, Talachi H, Taymori M (2009) Study of liquid solvent deasphalting of heavy residues, International Journal of Industrial Engineering and Production Management, 19: 33-39. ##
[2]. Aske N (2002) Characterisation of crude oil components, asphaltene aggregation and emulsion stability by means of near infrared spectroscopy and multivariate analysis, Norwegian University of Science and Technology, 49. ##
[3]. Fakher S, Ahdaya M, Elturki M, Imqam A (2019) Critical review of asphaltene properties and factors impacting its stability in crude oil, Journal of Petroleum Exploration and Production Technology, 1-18. ##
[4]. Priyanto S, Mansoori G A, Suwono A (2001) Measurement of property relationships of nano-structure micelles and coacervates of asphaltene in a pure solvent, Chemical Engineering Science, 56: 6933-6939. ##
[5]. Speight J. (2004) Petroleum Asphaltenes-Part 1: Asphaltenes, resins and the structure of petroleum, Oil and Gas Science and Technology, 59: 467-477. ##
[6]. Ancheyta J, Trejo F, Rana M S (2010) Asphaltenes: chemical transformation during hydroprocessing of heavy oils, CRC press. ##
[7]. Andersen S I, Speight J G (2001) Petroleum resins: separation, character, and role in petroleum, Petroleum Science and Technology, 19: 1-34. ##
[8]. Klein G C, Kim S, Rodgers R P, Marshall A G, Yen A (2006) Mass spectral analysis of asphaltenes. II. Detailed compositional comparison of asphaltenes deposit to its crude oil counterpart for two geographically different crude oils by ESI FT-ICR MS, Energy and Fuels, 20: 1973-1979. ##
[9]. Processing H (2004) Refining processes handbook, Houston, TX: Gulf Publishing Company. ##
[10]. Motaghi M, Shree K, Krishnamurthy S (2010) Consider new methods for bottom of the barrel processing: Part 1: CLEAN FUELS, Hydrocarbon Processing (International ed.), 89: 35-40. ##
[11]. Iqbal R, Khan A, Eng O, Floyd R (2008) Unlocking current refinery constraints, Petroleum technology quarterly, 13. ##
[12]. Agency U S E P (2013) Study of Selected Petroleum Refining Residuals: Industry Study, BiblioGov. ##
[13]. Anderson M J, Whitcomb P J (2016) DOE simplified: practical tools for effective experimentation, CRC press. ##
[14]. Maqbool T, Srikiratiwong P, Fogler H S (2011) Effect of temperature on the precipitation kinetics of asphaltenes, Energy and Fuels, 25: 694-700. ##
[15]. Aske N, Kallevik H, Johnsen E E, Sjöblom J (2002) Asphaltene aggregation from crude oils and model systems studied by high-pressure NIR spectroscopy, Energy and Fuels, 16: 1287-1295. ##
[16]. Z Zhang, Peng J, Srinivasakannan C, Zhang Z, Zhang L, Fernández Y, Menéndez J (2010) Leaching zinc from spent catalyst: Process optimization using response surface methodology, Journal Of Hazardous Materials, 176: 1113-1117. ##
[17]. Junior L C R, Ferreira M S, da Silva Ramos A C (2006) Inhibition of asphaltene precipitation in Brazilian crude oils using new oil soluble amphiphiles, Journal of Petroleum Science and Engineering, 51: 26-36. ##
[18]. Pandu R G (2016) Multi-objective optimization: techniques and applications in chemical engineering, World Scientific. ##
[19]. Duan X, Zhang Z, Srinivasakannan C, Wang F, Liang J (2014) Regeneration of spent catalyst from vinyl acetate synthesis as porous carbon: Process optimization using RSM, Chemical Engineering Research and Design, 92: 1249-1256. ##
[20]. Hou X, Xiao F, Wang J, Amirkhanian S (2018) Identification of asphalt aging characterization by spectrophotometry technique, Fuel, 226: 230-239. ##
[21]. Nadkarni R, Nadkarni R (2007) Guide to ASTM test methods for the analysis of petroleum products and lubricants, ASTM International West Conshohocken. ##
[22]. ASTM D (2013) Standard test method for penetration of bituminous materials, USA, ASTM International. ##
[23]. ASTM D (2014) Standard test method for softening point of bitumen (ring-and-ball apparatus), American Society for Testing and Materials, West Conshohocken, PA, USA. ##
[24]. ASTM D (2017) Standard test method for ductility of asphalt materials, American Society for Testing and Materials, West Conshohocken, PA, USA. ##
[25]. Hassan N A, Ruzi N A, Shukry N A M, Jaya R P, Hainin M R, Kamaruddin N H M, Abdullah M E (2019) Physical properties of bitumen containing diatomite and waste engine oil, Malaysian Journal of Fundamental and Applied Sciences, 15: 528-531. ##
[26]. ASTM D (2002) Standard test method for flash and fire points by Cleveland open cup tester, Annual Book of Standards. ##
[27]. George E, Hunter J S, Hunter W G, Bins R, Kirlin K IV, Carroll D (2005) Statistics for experimenters: design, innovation, and discovery, Wiley New York, NY, USA. ##
[28]. Tarpey T (2000) A note on the prediction sum of squares statistic for restricted least squares, The American Statistician, 54: 116-118. ##
[29]. Bingham N H, Fry J M (2010) Regression: Linear models in statistics, Springer Science and Business Media. ##
[30]. Draper N, Smith H (2014) Applied Regression Analysis, Hoboken; Somerset, in, NJ: John Wiley and Sons. ##
[31]. Bezerra M A, Santelli R E, Oliveira E P, Villar L S, Escaleira L A (2008) Response surface methodology (RSM) as a tool for optimization in analytical chemistry, Talanta, 76, 965-977. ##
 
[32]. Telmadarreie A, Trivedi J (2017) Dynamic behavior of asphaltene deposition and distribution pattern in fractured porous media during hydrocarbon solvent injection: pore-level observations, Energy and Fuels, 31: 9067-9079. ##
[33]. Long J, Shen B, Ling H, Zhao J, Lu J (2011) Novel solvent deasphalting process by vacuum residue blending with coal tar, Industrial and engineering chemistry research, 50, 11259-11269. ##
[34]. Zendehboudi S, Shafiei A, Bahadori A, James L A, Elkamel A, Lohi A (2014) Asphaltene precipitation and deposition in oil reservoirs–Technical aspects, experimental and hybrid neural network predictive tools, Chemical Engineering Research and Design, 92, 857-875. ##
[35]. Verdier S, Carrier H, Andersen S I, Daridon J L (2006) Study of pressure and temperature effects on asphaltene stability in presence of CO2, Energy and Fuels, 20: 1584-1590. ##
[36]. Hussain H K, Ali S M, Ali Y M (2011) Upgrading sharky baghdad heavy crude oil, Al-Khwarizmi Engineering Journal, 7: 19-29. ##
[37]. Wang Y, Chen Z, Shen B (2012) The Dual-purpose of solvent deasphalting integrated with FCC for production of qualified pavement asphalt and FCC feedstock to realize its maximum potential, Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 34: 1187-1195. ##
[38]. Rezaei N, Mohammadzadeh O, Chatzis I (2010) Warm VAPEX: a thermally improved vapor extraction process for recovery of heavy oil and bitumen, Energy and Fuels, 24: 5934-5946. ##
[39]. Myers R H, Montgomery D C, Anderson-Cook C M (2016) Response surface methodology: process and product optimization using designed experiments, John Wiley and Sons. ##
[40]. Candioti L V, De Zan M M, Cámara M S, Goicoechea H C (2014) Experimental design and multiple response optimization, using the desirability function in analytical methods development, Talanta, 124: 123-138. ##
[41]. Gafonova O V, Yarranton H W (2001) The stabilization of water-in-hydrocarbon emulsions by asphaltenes and resins, Journal of Colloid and Interface Science, 241: 469-478. ##
[42]. Hu Y F, Guo T M (2001) Effect of temperature and molecular weight of n-alkane precipitants on asphaltene precipitation, Fluid Phase Equilibria, 192: 13-25. ##
[43]. Udourioh G A, Ibezim-Ezeani M I, Ofodile S E (2014) Comparative investigation of heavy organics precipitation from crude oil using binary mixtures and single n-alkane organic solvents, Journal of Petroleum and Gas Exploration Research, 4: 53-59. ##
[44]. Tobrise O O, Ofodile S E, Osu C, Achugasim O (2016) Comparative evaluation of asphaltene precipitation from nigerian crude oil residue using intermediate and long chain single and binary n-alkane solvent mixtures, IOSR Journal of Applied Chemistry, 9: 82-86. ##