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Methods of lube stock solvent dewaxing process intensification

UDK: 665.666
DOI: 10.24887/0028-2448-2017-11-70-72
Key words: dewaxing, base oil, methylisobutylketone
Authors: S.A. Antonov, O.A. Kosareva, S.V. Zaglyadova, K.B. Rudyak (United Research and Development Centre LLC, RF, Moscow), O.B. Dogadin (Rosneft Oil Company, RF, Moscow)

Projections for the world production of I-IV API base oils are submitted in the article. It is noted that base oils of the 1-st group will remain the largest segment of base oil production for a long time. The basic flow schemes for base oil production on the lube oil units of Rosneft Oil Company are described. One of the main processes for producing base oils is solvent dewaxing, which is characterized by high material and capital costs. The main ways of process intensification such as modernization of equipment, applying of deparaffinized additives, the use of and search for new solvents are described in the article.

One of the most promising directions of intensification is the use of high molecular weight ketones, particularly methyl isobutyl ketone (MIBK), which has a number of advantages compared to the traditionally used mixed solvent – methyl ethyl ketone (MEK) and toluene. To confirm the feasibility of replecement of MEK and toluene mixture in MIBK the economic efficiency calculations were carried out. The calculation results have confirmed the economic feasibility of replacement MEK and toluene mixture at MIBK.

References

1. Rynok bazovykh masel v Rossii i za rubezhom (The market of base oils in Russia and abroad), Moscow: Publ. of Agency of Industrial Information, 2015, 71 p.

2. Van Litszyun', Vliyanie fraktsionnogo sostava maslyanykh distillyatov na pokazateli protsessov proizvodstva neftyanykh masel (Influence of the fractional composition of oil distillates on the parameters of the production processes of petroleum oils), thesis of candidate of technical science, Ufa, 2002.

3. Manovyan A.K., Tekhnologiya pererabotki prirodnykh energonositeley (Technology of processing of natural energy carriers), Moscow: Khimiya, KolosS Publ., 2004, 456 p.

4. Starkova N.N., Shuverov V.M., Ryabov V.G. et al., Increasing the efficiency of dewaxing in the deoiling stage (In Russ.), Khimiya i tekhnologiya topliv i masel = Chemistry and Technology of Fuels and Oils, 2003, no. 6, pp. 14–15.

5. Yakovlev S.P., Radchenko E.D., Blokhinov V.F., Efficiency of dewaxing lube oil raffinate in different types of crystallizers (In Russ.), Khimiya i tekhnologiya topliv i masel = Chemistry and Technology of Fuels and Oils, 2002, no. 2, pp. 16–17.

6. Yakovlev S.P., Zakharov V.A., Boldinov V.A., Esipko E.A., Combined process for production of base oils and exhaustively deoiled waxes. use of oscillating crystallizers (In Russ.), Khimiya i tekhnologiya topliv i masel = Chemistry and Technology of Fuels and Oils, 2006, no. 2, pp. 13–15.

7. Zolotarev P.A., Nigmatullin R.G., Effectiveness of soaking sections in process of dewaxing lube raffinates (In Russ.), Khimiya i tekhnologiya topliv i masel = Chemistry and Technology of Fuels and Oils, 1997, no. 4, p. 26.

8. Patent no. 103789039 CNA, Solvent by dewaxing method, Inventors: Wang Shixin, Yuan pingfei, Wang Yongfang.

9. Patent no.  4622130 US, Economic combinative solvent and catalytic dewaxing process employing methylisopropyl ketone as the solvent and a silicate-based catalyst, Inventor: Stem S.C.

10. Patent no. 1499533 GBA, Dewaxing waxy petroleum oil stocks.

11. Informatsionno-analiticheskiy otchet v oblasti eksportno-importnykh operatsiy rossiyskikh predpriyatiy (Information and analysis report in the field of export-import operations of Russian companies), Moscow: Biznes-Aktiv Publ., 2016, 135 p.

12. Kulakova T.N., Metodicheskie ukazaniya k kursovomu i diplomnomu proektirovaniyu “Ekonomicheskoe obosnovanie diplomnykh proektov” (Methodical instructions for course and diploma projecting "Economic justification of diploma projects"), Samara: Publ. of SSTU, 2004, 66 p.

Projections for the world production of I-IV API base oils are submitted in the article. It is noted that base oils of the 1-st group will remain the largest segment of base oil production for a long time. The basic flow schemes for base oil production on the lube oil units of Rosneft Oil Company are described. One of the main processes for producing base oils is solvent dewaxing, which is characterized by high material and capital costs. The main ways of process intensification such as modernization of equipment, applying of deparaffinized additives, the use of and search for new solvents are described in the article.

One of the most promising directions of intensification is the use of high molecular weight ketones, particularly methyl isobutyl ketone (MIBK), which has a number of advantages compared to the traditionally used mixed solvent – methyl ethyl ketone (MEK) and toluene. To confirm the feasibility of replecement of MEK and toluene mixture in MIBK the economic efficiency calculations were carried out. The calculation results have confirmed the economic feasibility of replacement MEK and toluene mixture at MIBK.

References

1. Rynok bazovykh masel v Rossii i za rubezhom (The market of base oils in Russia and abroad), Moscow: Publ. of Agency of Industrial Information, 2015, 71 p.

2. Van Litszyun', Vliyanie fraktsionnogo sostava maslyanykh distillyatov na pokazateli protsessov proizvodstva neftyanykh masel (Influence of the fractional composition of oil distillates on the parameters of the production processes of petroleum oils), thesis of candidate of technical science, Ufa, 2002.

3. Manovyan A.K., Tekhnologiya pererabotki prirodnykh energonositeley (Technology of processing of natural energy carriers), Moscow: Khimiya, KolosS Publ., 2004, 456 p.

4. Starkova N.N., Shuverov V.M., Ryabov V.G. et al., Increasing the efficiency of dewaxing in the deoiling stage (In Russ.), Khimiya i tekhnologiya topliv i masel = Chemistry and Technology of Fuels and Oils, 2003, no. 6, pp. 14–15.

5. Yakovlev S.P., Radchenko E.D., Blokhinov V.F., Efficiency of dewaxing lube oil raffinate in different types of crystallizers (In Russ.), Khimiya i tekhnologiya topliv i masel = Chemistry and Technology of Fuels and Oils, 2002, no. 2, pp. 16–17.

6. Yakovlev S.P., Zakharov V.A., Boldinov V.A., Esipko E.A., Combined process for production of base oils and exhaustively deoiled waxes. use of oscillating crystallizers (In Russ.), Khimiya i tekhnologiya topliv i masel = Chemistry and Technology of Fuels and Oils, 2006, no. 2, pp. 13–15.

7. Zolotarev P.A., Nigmatullin R.G., Effectiveness of soaking sections in process of dewaxing lube raffinates (In Russ.), Khimiya i tekhnologiya topliv i masel = Chemistry and Technology of Fuels and Oils, 1997, no. 4, p. 26.

8. Patent no. 103789039 CNA, Solvent by dewaxing method, Inventors: Wang Shixin, Yuan pingfei, Wang Yongfang.

9. Patent no.  4622130 US, Economic combinative solvent and catalytic dewaxing process employing methylisopropyl ketone as the solvent and a silicate-based catalyst, Inventor: Stem S.C.

10. Patent no. 1499533 GBA, Dewaxing waxy petroleum oil stocks.

11. Informatsionno-analiticheskiy otchet v oblasti eksportno-importnykh operatsiy rossiyskikh predpriyatiy (Information and analysis report in the field of export-import operations of Russian companies), Moscow: Biznes-Aktiv Publ., 2016, 135 p.

12. Kulakova T.N., Metodicheskie ukazaniya k kursovomu i diplomnomu proektirovaniyu “Ekonomicheskoe obosnovanie diplomnykh proektov” (Methodical instructions for course and diploma projecting "Economic justification of diploma projects"), Samara: Publ. of SSTU, 2004, 66 p.



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