1,720,986 research outputs found
Optimization Of Tocopherol Concentration Process From Soybean Oil Deodorized Distillate Using Response Surface Methodology
No full textSoybean oil deodorized distillate is a product derived from the refining process and it is rich in high value-added products. The recovery of these unsaponifiable fractions is of great commercial interest, because of the fact that in many cases, the "valuable products" have vitamin activities such as tocopherols (vitamin E), as well as anticarcinogenic properties such as sterols. Molecular distillation has large potential to be used in order to concentrate tocopherols, as it uses very low temperatures owing to the high vacuum and short operating time for separation, and also, it does not use solvents. Then, it can be used to separate and to purify thermosensitive material such as vitamins. In this work, the molecular distillation process was applied for tocopherol concentration, and the response surface methodology was used to optimize free fatty acids (FFA) elimination and tocopherol concentration in the residue and in the distillate streams, both of which are the products of the molecular distiller. The independent variables studied were feed flow rate (F) and evaporator temperature (T) because they are the very important process variables according to previous experience. The experimental range was 4-12 mL/min for F and 130-200°C for T. It can be noted that feed flow rate and evaporator temperature are important operating variables in the FFA elimination. For decreasing the loss of FFA, in the residue stream, the operating range should be changed, increasing the evaporator temperature and decreasing the feed flow rate; D/F ratio increases, increasing evaporator temperature and decreasing feed flow rate. High concentration of tocopherols was obtained in the residue stream at low values of feed flow rate and high evaporator temperature. These results were obtained through experimental results based on experimental design. © 2007 Humana Press Inc.137-14001/12/15885896Ramamurthi, S., McCurdy, A.R., (1993) J. Am. Oil Chem. Soc., 70, pp. 287-295. , 3Almeida, M.E.M., (2000) Food Engineering School, , State University of Campinas (UNICAMP) Campinas, BrazilRamamurthi, S., Bhirud, P.R., McCurdy, A.R., (1991) J. Am. Oil Chem. Soc., 68, pp. 970-975. , 12Ruperez, F.J., Martín, D., Herrera, E., Barbas, C., (2001) J. Chrom. A., 935, pp. 45-69Ferrari, R.A., Schulte, E., Esteves, W., Brühl, L., Mukherjee, K.D., (2007) J. Am. Oil Chem. Soc., 73, pp. 587-592. , 5Stampfer, M.J., Hennekens, C.H., Manson, J.E., Colditz, G.A., Rosner, B., Willett, W.C., (1993) J. Med., 56, pp. 1444-1449. , 12Chu, B.S., Baharin, B.S., Quek, S.Y., (2002) Food Chem., 79, pp. 55-59. , 1Shimada, Y., Nakai, S., Suenaga, M., Sugihara, A., Kitano, M., Tominaga, Y., (2000) J. Am. Oil Chem. Soc., 77, pp. 1009-1013. , 10Jeromin, L., Johannisbauer, W., Gutsche, B., Jordan, V., Wogatzki, H., (1997), USP 5627289Tütem, E., Apak, R., Günaydi, E., Sözgen, K., (1997) Talanta, 44, pp. 249-255Batistella, C.B., Wolf MacIel, M.R., Maciel Filho, R., (2000) Comp. Chem. Eng., 24, pp. 1309-1315Fregolente, L.V., Batistella, C.B., Maciel Filho, R., Wolf MacIel, M.R., (2005) J. Am. Oil Chem. Soc., 82, pp. 673-678. , 9Moraes, E.B., Batistella, C.B., Alvarez, M.E.T., Maciel Filho, R., MacIel, M.R.W., (2004) Appl. Biochem. Biotechnol., 113, pp. 689-711Xu, X., Jacobsen, C., Nielsen, N.S., Heinrich, M.T., Zhou, D., (2002) Eur. J. Lipid Sci. Technol., 104, pp. 745-755Lima Silva, N., Wolf Maciel, M.R., Batistella, C.B., Maciel Filho, R., (2006) Appl. Biochem. Biotechnol., pp. 129-132Sbaite, P., Batistella, C.B., Winter, A., (2006) Petrol. Sci. Technol., 24, pp. 265-274. , 3-4Ito, V.M., Martins, P.F., Batistella, C.B., Maciel Filho, R., Wolf MacIel, M.R., (2006) Appl. Biochem. Biotechnol., pp. 129-132Martins, P.F., Ito, V.M., Batistella, C.B., MacIel, M.R.W., (2006) Sep. Pur. Technol., 48, pp. 78-84Moraes, E.B., Martins, P.F., Batistella, C.B., Alvarez, M.E.T., Maciel Filho, R., Wolf MacIel, M.R., (2006) Appl. Biochem. Biotechnol., 129-132, pp. 1041-1050Ito, V.M., (2004) FAPESP (Fundação de Amparo a Pesquisa Do Estado de São Paulo) ReportMaciel Filho, R., Batistella, C.B., Sbaite, P., (2006) Petrol. Sci. Technol., 24, pp. 275-283. , 3-4Fregolente, L.V., Batistella, C.B., Maciel Filho, R., Wolf MacIel, M.R., (2006) Appl. Biochem. Biotechnol., 129-132, pp. 680-693Burkert, J.F.M., Maldonado, R.R., Maugeri Filho, F., Rodrigues, M.I., (2005) J. Chem. Technol. Biotechnol., 80, pp. 61-67(1998) Official Methods and Recommended Practices of the AOCS, 5th Ed., , AOCS Champaign, Method Ca 5a-40(1998) Official Methods and Recommended Practices of the AOCS, 5th Ed., , AOCS, Champaign, Method Ce 8-89Barros Neto, B., Scarminio, I.S., Bruns, R.E., (2003) Como Fazer Experimentos: Pesquisa e Desenvolvimento Na Ciência e Na Indústria, , 2nd ed. Unicamp Campina
Production Of Monoglycerides And Diglycerides Through Lipase-catalyzed Glycerolysis And Molecular Distillation [produção De Monoacilgliceróis E Diacilgliceróis Via Glicerólise Enzimática E Destilação Molecular]
No full textMonoacilglycerides and diacilglycerides are produced through lipase-catalyzed glycerolysis of soybean oil using Candida antárctica B in a solvent-free system. The reaction was carried out at a glycerol to triacylglycerol molar ratio of 8:1 with 2% of lipase. Acylglycerides, free fatty acids (FFA) and glycerol produced were separated employing the molecular distillation process. Starting from a product of enzymatic reaction 25.06% of triacylglycerols, 46.63% of diacylglycerides, 21.72% of monoacylglycerides, 5.38% of FFA and 1.21% of glycerol and after consecutively distillations, monoacylglycerides with 80% of purity was obtained and also oil with 54% of diacylglycerides to be used in human dietary.32615391543Meng, X., Zou, D., Shi, Z., Duan, Z., Mao, Z., (2006) Lipids, 39, p. 37Hickman, K.C.D., (1943) Chem. Rev., 34, p. 51Watanabe, H., Onizawa, K., Naito, S., Taguchi, H., Goto, N., Nagao, T., Matsuo, N., Itakura, H., (2001) Ann. Nutr. Metab., 45, p. 264Maki, C.K., Davidson, M., Tsushima, R., Matsuo, N., Tokimitsu, I., Umporowicz, D.N., Dicklin, M.R., Bell, M., (2002) Am. J. Clin. Nutr., 76, p. 1230Yasunaga, K., Glinsmann, W.H., Seo, Y., Katsuragi, Y., Kobayashi, S., Flickinger, B., Kennepohl, E., Borzelleca, J., (2004) Food Chem. Toxicol., 42, p. 1419Shimizu, M., Moriwaki, J., Nishide, T., Nakajima, Y., (2004) J. Am. Oil Chem. Soc., 81, p. 571Yamamoto, K., Takeshita, M., Tokimitsu, I., Watanabe, H., Mizuno, T., Asakawa, H., Tokunaga, K., Yagi, N., (2006) Nutrition, 22, p. 23Li, D., Xu, T., Takase, H., Tokimitsu, I., Zhang, P., Wang, Q., Yu, X., Zhang, A., (2008) Clinical Nutrition, 27, p. 203Sonntag, N.O.V., (1982) J. Am. Oil Chem. Soc., 59, p. 795Ferreira-Dias, S., Correia, A.C., Baptista, F.O., Fonseca, M.M.R., (2001) J. Mol. Catal. B: Enzym., 11, p. 699Guo, Z., Xu, X., (2006) Green Chem., 8, p. 54Micov, M., Lutisan, J., Cvengros, J., (1997) Sep. Sci. Technol., 32, p. 3051Batistella, C.B., Maciel, M.R.W., (1996) Comput. Chem. Eng., 20, p. 19Fregolente, L.V., Batistella, C.B., Maciel, R., Wolf-Maciel, M.R., (2005) J. Am. Oil Chem. Soc., 82, p. 673Batistella, C.B., Moraes, E.B., Maciel Filho, R., Maciel, M.R.W., (2002) Appl. Biochem. Biotechnol., 98, p. 1149Moraes, E.B., Batistella, C.B., Alvarez, M.E.T., Maciel Filho, R., Maciel, M.R.W., (2004) Appl. Biochem. Biotechnol., 113, p. 689Breivik, H., Haraldsson, G.G., Kristinsson, B., (1997) J. Am. Oil Chem. Soc., 74, p. 1425Kwon, S.J., Han, J.J., Rhee, J.S., (1995) Enzyme Microb. Technol., 17, p. 700Fregolente, P.B.L., Fregolente, L.V., Pinto, G.M.F., Batistella, C.B., Wolf-Maciel, M.R., Maciel Filho, R., (2008) Appl. Biochem. Biotechnol., 146, p. 165Schoenfelder, W., (2003) Eur. J. Lip. Sei. Technol., 105, p. 4
High-boiling-point Petroleum Fractions Upgrading Using The Centrifugal Reactive-molecular Distillation Process Over Catalyst: Mathematical Modeling And Simulation Including Experimental Validation
No full textThe modeling of the reactive molecular distillation process (centrifugal type), in which the molecular distillation process and reactive process occur simultaneously to upgrade heavy petroleum crude oil, is presented in this work. The mathematical model involves equations for the evaluation of the physicochemical properties, in-situ cracking reaction, heat, continuity and material balances. A case study is illustrated for an atmospheric petroleum residue (>673.15 K) of " W" crude oil. The influence of adding a catalyst (3 and 5 wt%) was examined under different operating conditions: the process temperature range was from 473.15 K to 523.15 K (considering a pressure between 40 - 50 Pa) and the constant feed flow rate was 1.473 kg h -1. The results showed that the concentration of the pseudocomponent " a" shrank in both the s- and r- directions reaching an extent conversion of the feedstock about 50% with 3 and 5 wt% of catalyst. Due to the rapid temperature rise in the thin liquid film, the thickness of the film rapidly decreased in this region, whereas the amount of distillate from the split molecules continuously increased throughout the evaporator under the selected conditions. The experimental results agreed well with those obtained from the theoretical simulations, indicating the accuracy and reliability of the mathematical model, since the average percent error was no larger than 6.82%, 9.39% and 14.92% for the distillate flow rate and the extent of conversion in the distillate and in the residue stream, respectively. © 2012 Elsevier B.V.30617621American Society for Testing Materials, ASTM D 7169. Standard test method for boiling point distribution of samples with residues such as crude oils and atmospheric and vacuum residues by high temperature gas chromatography (2005), p. 17. , West Conshohoken, (PA): ASTM InternationalBlanding, F.H., Reaction rates in catalytic cracking of petroleum (1953) Industrial & Engineering Chemistry, 45 (6), pp. 1186-1197Inuzuka, M., Ishikawa, H., Yamada, I., Hiraoka, S., Aragaki, T., Inukai, Y., Erciyes, A.T., Kobayashi, S., Vaporization from liquid film of binary mixture in a centrifugal molecular still (1989) Journal of Chemical Engineering of Japan., 22 (3), pp. 291-297Kawala, Z., Dakiniewicz, P., Influence of evaporation space geometry on rate of distillation in high vacuum evaporator (2002) Separation Science and Technology, 37 (8), pp. 1877-1895Tovar, L.P., Winter, A., Wolf Maciel, M.R., Batistella, C.B., Maciel Filho, R., Medina, L.C., Reliable based optimization using an experimental factorial design, response surface methodology and mathematical modeling of a centrifugal molecular distillation process to split heavy petroleum fractions (2012) Separation Science and Technology, , doi 10.1080/01496395.2011.644612Tovar, L.P., Wolf Maciel, M.R., Araujo, A.S., Maciel Filho, R., Batistella, C.B., Medina, L.C., Kinetic study on catalytic cracking of Brazilian high-boiling-point petroleum fractions (2011) Journal of Thermal Analysis and Calorimetry, , doi 10.1007/s10973-011-2068-6Tovar, L.P., Wolf Maciel, M.R., Maciel Filho, R., Batistella, C.B., Ariza, O.C., Medina, L.C., Overview and computational approach for studying the physicochemical characterization of high-boiling- point petroleum fractions (350 °C+) (2011) Oil & Gas Science and Technology - Rev. IFP, , doi:10.2516/ogst/2011150Winter, A., (2011) Development of reactive molecular distillation technology: design and construction of the unit 2011, p. 166. , Ph. D. Tese (Doctorate of Chemical Engineering) - School of Chemical Engineering, State University of Campinas, Campinas, 201
Development Of Intensified Hybrid Equipment: Reactive Molecular Distiller
No full textStudies indicate the existence of fields with so heavy oils that the simple rise and drainage from the base of the oil well to the surface seems to be impracticable in a first analysis, mainly in oil fields Off-Shore. New alternatives, with the objective of reducing the API degree and the viscosity of these oils, are being developed to enable upgrading of the extra-heavy oil. Processes to transform the oil involve thermal or catalytic cracking which imply in transforming large molecules into smaller ones; or simply physical treatments, as extraction of the heavy fractions of petroleum with supercritical fluid or dilution of the oil with fractions of the proper oil, generating the synthetic oil. In this work, a new equipment was developed: the reactive molecular distiller, in which happens simultaneously the coupling of the molecular distillation (high vacuum) and reactive conversion. It is very robust and can be characterized as a hybrid process and also as an intensified process. This equipment will promote the cracking and the conversion of the heavy fractions in lighter ones, which will be injected in the oil well making possible the withdrawal of the heavy oil from the well. Its most important characteristic is the immediate removal of the reaction products, dislocating the equilibrium in the direction of the desired products. The design, construction and studies of Reactive Molecular Distiller will be detailed in this work, which made possible the idealization of this intensified hybrid equipment. Copyright © 2009, AIDIC Servizi S.r.l.1716331638Batistella, C.B., Wolf Maciel, M.R., (1996) Purification of fine chemical products through Molecular Distillation, (96 0327-2). , FAPESP Project, ProcessBatistella, C.B.E., Wolf Maciel, M.R., Recovery of Carotenoids from Palm Oil by Molecular Distillation (1998) Comput. Chem. Eng, 22, pp. S53-S60Batistella, C.B., Maciel, M.R.W., Maciel Filho, R., Rigorous Modeling and Simulation of molecular distillations: Development of a simulator under conditions non ideality of the vapor phase (2000) Computers & Chemical Engineering, 24, pp. S1309-S1315Batistella, C.B., Wolf Maciel, M.R., (2001) Development of a Prototype of Centrifugal Molecular Distiller of High Performance, (1 10092-2). , FAPESP Project, ProcessBatistella, C.B., (2001) Design of molecular distillers: From conception of the process to the equipment detail in laboratory, pilot and industrial levels, (99 03550-2). , PhD FAPESP Project, ProcessBatistella, C.B.B., Wolf Maciel, M.R., Maciel Filho, R., 2006, Conceptual and preliminaru studies of reacitve molecular distillation, Internal Report, LOPCA/LDPS/UNICAMPErciyes, A.T., Ishikawa, H., Inuzuka, M., Hiraoka, S., Mori, H. E Yamada, I., 1987, Vaporization of Binary Liquid Mixtures from Surface at Reduced Pressure, I.Chem.E. Symposium Series 1, A359-A371Fregolente, L. V., Fregolente, P. B. L., Chicuta, A. M., Batistella, C. B., Maciel, Filho R., Wolf-Maciel, M. R., 2007, Effect of Operating Conditions on the Concentration of Monoglycerides Using Molecular Distillation, Chemical Engineering Research & Design 85, 11, 1524-1528Hickman, K.C.D., High-Vacuum Short-Path Distillation - A Review (1943) Chem. Rev, 34, pp. 51-106Maciel, R., Batistella, C.B., Sbaite, P., Winter, A., Vasconcelos, C.J.G., Maciel, M.R.W., Gomes, A., Kunert, R., Evaluation of atmospheric and vacuum residues using molecular distillation and optimization (2006) Petroleum Science And Technology, 24, pp. 275-283Moraes, E.B., Batistella, C.B., Torres Alvarez, M.E., Maciel Filho, R., Wolf Maciel, M.R., Evaluation of Tocopherol Recovery Through Simulation of Molecular Distillation Process (2004) Applied Biochemistry and Biotechnology, 113-116, pp. 689-711Noeres, C., Kenig, E. Y., Górak, A., 2003, Modelling of Reactive Separation Processes: Reactive Absorption and Reactive Distillation, Chem. Eng. and Process 42, 157-178(2007) Development of alternative technology: Reactive molecular distillation to transform (upgrading) the extra-heavy oil aiming to improve its, , PETROBRAS/FINEP, drainingSbaite, P., Batistella, C.B., Winter, A., Wolf Maciel, M.R., Maciel Filho, R., Gomes, A., Medina, L., Mathias Leite, L.F., Characterization Of Residue Stream Obtained Through Molecular Distillation Of Heavy Oil Petroleum (2005) The Seventh Italian Conference On Chemical And Process Engineering (Icheap7), , Giardini Di Naxos, Taormina, ItalyWinter, A., Batistella, C.B., Wolf Maciel, M.R., Maciel Filho, R., Lopes, M.S., Medina, L.C., A True Boiling Point Curve Through Molecular Distillation Using Framol Correlation, The eight (2007) International Conference On Chemical And Process Engineering (Icheap, 8. , Gulf of Naple
True Boiling Point Extended Curve Of Vacuum Residue Through Molecular Distillation
No full textMolecular distillation is a separation process that explores high vacuum, operation at reduced temperatures, and low exposition of the material at the operating temperature. The term vacuum residue (heavy petroleum fractions) refers to the bottom of the vacuum distillation, which has an atmospheric equivalent temperature (AET) above 540°C. For the assay of the properties of petroleum and petroleum products, the use of the true boiling point (TBP) distillation analysis is accepted as a common practice; however, for heavy petroleum fractions, some difficulties appear for determination of TBP of these petroleum fractions. The objective of this work is to develop a new and a more appropriated method to extend the TBP curve to use it for characterizing vacuum residue of heavy petroleum. The falling film molecular distillator was used. The results showed that it is possible to extend the TBP curve through molecular distillation process with very good precision.2403/04/15265274Batistella, C.B., Wolf Maciel, M.R., Recovery of carotenoids from palm oil by molecular distillation (1998) Computers and Chemical Engineering, 22, pp. S53-S60Batistella, C.B., Wolf Maciel, M.R., Maciel Filho, R., Rigorous modeling and simulation of molecular distillators: Development of a simulator under conditions of non ideality of the vapor phase (2000) Computers and Chemical Engineering, 24, pp. S1309-S1315Batistella, C.B., Moraes, E.B., Maciel Filho, R., Wolf Maciel, M.R., Molecular distillation process for recovering biodiesel and carotenoids from palm oil (2002) Applied Biochemistry and Biotechnology, 98, pp. 1149-1159Batistella, C.B., Moraes, E.B., Maciel Filho, R., Wolf Maciel, M.R., Molecular distillation: Rigorous modeling and simulation for recovering vitamin e from vegetal oils (2002) Applied Biochemistry and Biotechnology, 98, pp. 1187-1206Lutisan, J., Micov, M., Cvengros, J., Feed temperature influence on the efficiency of a molecular evaporator (2000) Chem. Eng. J., 78, pp. 61-67Maciel Filho, R., Wolf Maciel, M.R., Sbaite, P., Vasconcelos, C.J.G., Batistella, C.B., Winter, A., Gomes, A., Kunert, R., (2005) Internal Report, , Laboratory of Separation Process Development (LDPS), Laboratory of Optimization, Design and Advanced Control (LOPCA), Faculty of Chemical Engineering, State University of Campinas (UNI-CAMP), BrazilMadhusudan, K.R., High-temperature simulated distillation CG analysis of petroleum resids and their products from catalytic upgrading over Co-Mo/Al2O 3 catalyst (1998) Catalysis Today, 43, pp. 187-202Moraes, E.B., Batistella, C.B., Torres Alvarez, M.E., Maciel Filho, R., Wolf Maciel, M.R., Evaluation of tocopherol recovery through simulation of molecular distillation process (2004) Applied Biochemistry and Biotechnology, 113-116, pp. 689-711Suelves, I., Islas, C.A., Milan, M., Galmies, C., Carter, J.F., Herod, A.A., Kandiyoti, R., Chromatographic separations enabling the structural characterization of heavy petroleum residues (2003) Fuel, 82, pp. 1-14Yang, G.E., Wang, R.A., The supercritical fluid extractive fractionation and the characterization of heavy oils and petroleum residua (1999) J. Petroleum Sci. Eng., 22, pp. 47-5
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Modeling And Simulation Of Molecular Distillation Process For A Heavy Petroleum Cut
No full textModeling and simulation of molecular distillation to split of heavy petroleum cuts are proposed. A theoretical study of this problem is illustrated for a heavy petroleum cut divided into six pseudo-components. In the process simulation, a falling film is considered. The mathematical model comprises equations for the evaluation of the physicochemical properties, in order to characterize the distilled mixture. Heat and material balances on the liquid film are numerically solved by using a central finite-difference method. The simulation is carried out at the steady-state conditions, where the relevant process variables, such as film thickness, evaporation rate, film surface temperature, concentration profiles, and amount of distillate flow rate are computed. In molecular distillation, the concentration of the most volatile components shrinks in both axial and radial directions, especially due to the fast increase of the temperature in the falling film. As a consequence, the less volatile components of the liquid mixture undergoes a fast increase on the liquid interface, by clearly showing the potentialities of the molecular distillation process in separating heavy petroleum cuts. As the results show, the inlet variables such as the feed temperature and the feed flow rate largely influence the final composition of the condensate flow. Copyright © 2009, AIDIC Servizi S.r.l.1716391644Batistella, C.B., Maciel, M.R.W., Modeling, simulation and analysis of molecular distillators: Centrifugal and falling film (1996) Comp. Chem. Eng, 20, pp. s19-s24Kawala, Z., Stephan, K., Evaporation rate and separation factor of molecular distillation in a falling film apparatus (1989) Chem. Eng. Technol, 12, pp. 406-413Sales-Cruz, M., Gani, R., Computer-aided modelling of short-path evaporation for chemical product purification. Analysis and design (2006) Chem. Eng. Res. Des, 84 (A7), pp. 583-594Sbaite, P., Batistella, C.B., Winter, A., Vasconcelos, C.J.G., Wolf Maciel, M.R., Maciel Filho, R., Gomes, A., Kunert, R., True boiling point extended curve of vacuum residue through molecular distillation (2006) Petrol. Sci. Technol, 24, pp. 265-27
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