Chemistry & Tech Lub (el. knyga) (skaityta knyga) | knygos.lt

Aprašymas

1 Base oils from petroleum.- 1.1 Introduction.- 1.2 Base oil composition.- 1.2.1 Components of crude oil.- 1.2.2 Characteristics of the hydrocarbons for lubricant performance.- 1.2.3 Crude oil selection for base oil manufacture.- 1.3 Products and specifications.- 1.3.1 Physical properties.- 1.3.2 Chemical properties.- 1.3.3 Base oil categories.- 1.4 Conventional base oil manufacturing methods.- 1.4.1 Historic methods.- 1.4.2 Base oil manufacture in a modern refinery.- 1.4.3 Base oil production economics.- 1.4.4 Distillation.- 1.4.5 De-asphalting.- 1.4.6 Solvent extraction.- 1.4.7 Solvent de-waxing.- 1.4.8 Finishing.- 1.5 Modern catalytic processes.- 1.5.1 Severe hydrotreatment.- 1.5.2 Special base oils from hydrocracking.- 1.5.3 Special base oils by wax isomerisation.- 1.5.4 Catalytic de-waxing.- 1.6 Future developments.- References.- 2 Synthetic base fluids.- 2.1 Introduction.- 2.2 Polyalphaolefins.- 2.2.1 Free radical oligomerisation.- 2.2.2 Ziegler catalysed oligomerisation.- 2.2.3 Friedel-Crafts catalysed oligomerisation.- 2.3 Alkylated aromatics.- 2.3.1 Introduction.- 2.3.2 Production and general properties.- 2.3.3 Applications.- 2.4 Polybutenes.- 2.4.1 Introduction.- 2.4.2 Production and general chemical properties.- 2.4.3 Application of PIB fluids.- 2.5 Synthetic esters.- 2.5.1 Introduction.- 2.5.2 Ester types.- 2.5.3 Manufacture of esters.- 2.5.4 Physicochemical properties of ester lubricants.- 2.5.5 Application areas.- 2.5.6 Future trends.- 2.6 Polyalkylene glycols.- 2.6.1 Introduction.- 2.6.2 Production.- 2.6.3 Chemistry.- 2.6.4 Key properties.- 2.6.5 Applications.- 2.7 Phosphate esters.- 2.7.1 Introduction.- 2.7.2 Manufacture.- 2.7.3 Physical and chemical properties.- 2.7.4 Applications.- References.- 3 Detergents/dispersants.- 3.1 Introduction.- 3.2 Detergents.- 3.2.1 Sulfonates.- 3.2.2 Phenates/salicylates/phosphonates.- 3.2.3 Detergent classification.- 3.3 Dispersants.- 3.4 Other lubricants.- 3.4.1 Automatic transmission fluids (ATFs).- 3.4.2 Gear lubricants.- 3.4.3 Tractor hydraulic oils.- 3.5 Performance evaluation.- References.- Further reading.- 4 Oxidative degradation and stabilisation of mineral oil based lubricants.- 4.1 Introduction.- 4.2 Autoxidation of hydrocarbons.- 4.2.1 Oxidation of hydrocarbons at low temperature (30-120°C).- 4.2.2 Oxidation of hydrocarbons at high temperature (> 120°C).- 4.2.3 Metal catalysed autoxidation of hydrocarbons.- 4.3 Oxidation stability of base oils.- 4.4 Inhibition of oxidative degradation of lubricants.- 4.4.1 Radical scavengers.- 4.4.2 Hydroperoxide decomposers.- 4.4.3 Multifunctional additives.- 4.4.4 Synergism between antioxidants.- 4.5 Application of antioxidants.- 4.5.1 Industrial lubricants.- 4.5.2 Engine oil.- 4.6 Future antioxidant technology.- 4.6.1 Antioxidants for industrial lubricants.- 4.6.2 Antioxidants for engine oils.- Acknowledgements.- References.- 5 Viscosity index improvers and thickeners.- 5.1 Introduction.- 5.2 Overview of VI improver chemistry.- 5.3 Chemistry and manufacture of commercial VI improvers.- 5.3.1 Polymethacrylates.- 5.3.2 Olefin copolymers.- 5.3.3 Hydrogenated styrene-diene copolymers.- 5.3.4 Styrene polyester.- 5.3.5 Concentrate-compatible PMA/OCP blends.- 5.4 Function and properties.- 5.4.1 Solution properties.- 5.4.2 Mechanism of function.- 5.4.3 Shear stability.- 5.4.4 Thermal-oxidative stability.- 5.5 Performance.- 5.5.1 Low temperature viscosity.- 5.5.2 High temperature viscosity.- 5.5.3 Deposits.- 5.6 Prognosis for future developments.- References.- 6 Miscellaneous additives.- 6.1 Friction modifiers.- 6.1.1 Introduction.- 6.1.2 Friction and lubricating regimes.- 6.1.3 Friction modifier mechanisms.- 6.1.4 Chemical aspects of friction modifiers.- 6.2 Pour point depressants.- 6.2.1 Low temperature operations.- 6.2.2 Mechanism of pour point depressants.- 6.2.3 Pour point depressant additives.- 6.3 Demulsifiers and antifoams.- 6.3.1 Introduction.- 6.3.2 Emulsion stabilisation.- 6.3.3 Demulsification.- 6.3.4 Demulsifiers.- 6.3.5 Fo