Section 
                1 
                534kb | 
              Foreword | 
              i | 
            
             
              | Author's 
                Preface | 
              ii | 
            
             
              | Contents | 
              v | 
            
             
              | List 
                of Illustrations | 
              ix | 
            
             
              | List 
                of Tables | 
              xi | 
            
             
              | Introduction | 
              15 | 
            
             
              Section 
                2 
                608kb | 
              I. | 
              Extraction 
                by Solvents | 
              20 | 
            
             
               | 
              (a) | 
              The 
                Yield of Oil by Extraction | 
              20 | 
            
             
               | 
              (b) | 
              Identification 
                of Chemical Compounds in the Extracts | 
              20 | 
            
             
              | II. | 
              Production 
                and Working-Up of Primary Tar | 
              22 | 
            
             
               | 
              (a) | 
              Methods 
                of Destructive Distillation of Fuels | 
              22 | 
            
             
               | 
              (b) | 
              Special 
                Laboratory Methods for the Production of Primary Tar | 
              24 | 
            
             
               | 
              (c) | 
              Yields 
                of Primary Tar From Coal and Peat | 
              25 | 
            
             
               | 
              (d) | 
              Proximate 
                Composition of Primary Tars | 
              27 | 
            
             
               | 
              (e) | 
              The 
                Temperatures Required for the Production of Primary Tar | 
              28 | 
            
             
              Section 
                3 
                779kb | 
               | 
              (f) | 
              Differentiation 
                Between Various Primary Tars and Other Tars | 
              30 | 
            
             
               | 
              (g) | 
              The 
                Chemical Compounds Found in Primary Tar and in Primary Benzines | 
              38 | 
            
             
               | 
              (h) | 
              The 
                Liquor From Low-Temperature Carbonization | 
              43 | 
            
             
               | 
              (i) | 
              Composition 
                and Application of Low-Temperature Carbonization Gas | 
              43 | 
            
             
              Section 
                4 
                865kb | 
               | 
              (k) | 
              The 
                Low-Temperature Benzine | 
              46 | 
            
             
               | 
              (l) | 
              The 
                Position of Primary Tar Between Coke-Oven Tar and Petroleum | 
              49 | 
            
             
               | 
              (m) | 
              Semi-Coke | 
              50 | 
            
             
               | 
              (n) | 
              The 
                Heat Balance of Low-Temperature Carbonization | 
              56 | 
            
             
               | 
              (o) | 
              The 
                Development of Commercial Primary Tar Production | 
              58 | 
            
             
               | 
               | 
              1. | 
              Distillation 
                Apparatus with External Heating | 
              59 | 
            
             
               | 
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               | 
               | 
              Vertical 
                Retorts | 
              60 | 
            
             
              Section 
                5 
                939kb | 
               | 
               | 
               | 
               | 
              Horizontal 
                Retorts | 
              64 | 
            
             
               | 
               | 
               | 
               | 
              Tunnel 
                Kilns | 
              68 | 
            
             
               | 
               | 
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               | 
              Rotary 
                Retorts | 
              71 | 
            
             
               | 
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               | 
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              Retorts 
                with Inner Lining | 
              76 | 
            
             
               | 
               | 
              2. | 
              Internal 
                Heating | 
              76 | 
            
             
               | 
               | 
               | 
               | 
              Superheated 
                Steam as Heating Agent | 
              76 | 
            
             
               | 
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               | 
              Hot 
                Producer Gas as Heating Medium | 
              78 | 
            
             
               | 
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               | 
              Hot 
                Coke-oven Gas as Heating Medium | 
              79 | 
            
             
               | 
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               | 
              Carbonisation 
                by means of Flue Gasses | 
              80 | 
            
             
              Section 
                6 
                1002kb | 
               | 
               | 
              3. | 
              Combined 
                Apparatus | 
              81 | 
            
             
               | 
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               | 
              Hot-Run 
                Generators fitted with Carbonising Retorts | 
              81 | 
            
             
               | 
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              Retorts 
                Combined with Low-Temperature Producers | 
              84 | 
            
             
               | 
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               | 
               | 
              Preliminary 
                Carbonization of Furnace Fuel | 
              87 | 
            
             
               | 
              (p) | 
              The 
                Influence of Retort Design Upon the Composition of Primary Tars 
                and Gas Benzines | 
              89 | 
            
             
               | 
              (q) | 
              The 
                Influence of Coal Drying on the Oil Recovery | 
              91 | 
            
             
               | 
              (r) | 
              Utilisation 
                and Working-Up of Primary Tar | 
              94 | 
            
             
               | 
               | 
              1. | 
              Direct 
                Utilisation of Primary Tar  | 
              94 | 
            
             
               | 
               | 
              2. | 
              Working-Up 
                of Primary Tar by Distillation | 
              94 | 
            
             
               | 
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               | 
               | 
              Chemical 
                Changes on Distillation | 
              94 | 
            
             
              Section 
                7 
                544kb | 
               | 
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              Working-up 
                by Distillation at Ordinary Pressure | 
              97 | 
            
             
               | 
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              Distillation 
                at Ordinary Pressure and Chemical Treatment | 
              99 | 
            
             
               | 
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              Working-up 
                of Primary Tar by means of Superheated Steam and Chemical Treatment | 
              100 | 
            
             
               | 
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               | 
               | 
              Working-up 
                in a High Vacuum | 
              104 | 
            
             
               | 
               | 
              3. | 
              Separation 
                and Utilisation of Phenols | 
              106 | 
            
             
               | 
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              The 
                Disadvantages of Phenols and their Corrosion of Metals | 
              106 | 
            
             
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              The 
                Utilisation of Phenols | 
              108 | 
            
             
               | 
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              Methods 
                of Separation of Phenols hitherto in Use | 
              108 | 
            
             
              Section 
                8 
                292kb | 
               | 
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               | 
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              The 
                Recovery of the Phenols by means of Superheated Water | 
              110 | 
            
             
              Section 
                9 
                959kb | 
               | 
               | 
              4. | 
              The 
                Reduction of Phenols of Primary Coal Tar to Benzol and Toluol | 
              117 | 
            
             
              Section 
                10 
                605kb | 
               | 
               | 
              5. | 
              Benzine 
                by Destructive Distillation of Primary Tar from Bituminous or 
                Brown Coal | 
              137 | 
            
             
               | 
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              Benzine 
                by Cracking of Primary Tar at Ordinary Pressure | 
              140 | 
            
             
               | 
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              Benzine 
                by Cracking under Pressure | 
              146 | 
            
             
              Section 
                11 
                705kb | 
               | 
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              Benzine 
                by the Burton Process | 
              150 | 
            
             
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              Benzine 
                by Cracking and Simultaneous Hydrogenation under High Pressure | 
              151 | 
            
             
               | 
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              6. | 
              The 
                Hydrogenation of Primary Tars, Tar Oils and Phenols | 
              158 | 
            
             
               | 
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              With 
                Catalysts | 
              158 | 
            
             
               | 
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              Without 
                Catalysts | 
              159 | 
            
             
               | 
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              7. | 
              Summary 
                of the Recovery of Light Motor Spirits From Primary Tars | 
              160 | 
            
             
               | 
               | 
              8. | 
              Purification 
                of Primary Tar Oils by Oxidation Under Pressure | 
              164 | 
            
             
              Section 
                12 
                414kb | 
               | 
               | 
              9. | 
              Formation 
                of resins and Asphalt from Primary Tar by Oxidation under Pressure | 
              166 | 
            
             
               | 
               | 
              10. | 
              Fatty 
                Acids from Crude Paraffin Wax by Oxidation under Pressure | 
              166 | 
            
             
               | 
              (s) | 
              Conversion 
                of Low-Temperature Carbonisation Tar into Coke-oven Tar | 
              166 | 
            
             
               | 
              (t) | 
              Conversion 
                of Brown Coal Tar into Aromatic Tar | 
              169 | 
            
             
               | 
              (u) | 
              Liquid 
                Motor Fuels by Hydrogenation of Coal Tar, and Especially by Naphthalene | 
              170 | 
            
             
               | 
              (v) | 
              Importance 
                of Primary Tar as Raw Material | 
              173 | 
            
             
              Section 
                13 
                568kb | 
              II. | 
              Hydrogenation 
                of Coal | 
              174 | 
            
             
               | 
              (a) | 
              By 
                Means of Hydriodic Acid Under Pressure According to Berthelot | 
              174 | 
            
             
               | 
              (b) | 
              Comparative 
                Hydrogenation of Different Coals with Hydriodic | 
              177 | 
            
             
               | 
              (c) | 
              Hydrogenation 
                by Means of Sodium Formate | 
              179 | 
            
             
              Section 
                14 
                626kb | 
               | 
              (d) | 
              Hydrogenation 
                by Means of Carbon Monoxide and Water | 
              187 | 
            
             
               | 
              (e) | 
              Hydrogenation 
                with Sodium Carbonate and Hydrogen | 
              195 | 
            
             
               | 
              (f) | 
              Destructive 
                Distillation of Bituminous Coal at Higher Hydrogen Pressures | 
              197 | 
            
             
               | 
              (g) | 
              Hydrogenation 
                of Coal According to Bergius at High Hydrogen Pressure | 
              198 | 
            
             
              Section 
                15 
                569kb | 
              IV. | 
              Synthetic 
                Processes | 
              202 | 
            
             
               | 
              (a) | 
              The 
                Action of Electric Discharges | 
              202 | 
            
             
               | 
              (b) | 
              Catalytic 
                Experiments at Ordinary Pressure | 
              203 | 
            
             
               | 
              (c) | 
              Liquid 
                Hydrocarbons from Carbon Monoxide and Hydrogen Under Pressure | 
              206 | 
            
             
               | 
              (d) | 
              Alcohols 
                and Formaldehyde from Carbon Monoxide and Hydrogen Under Pressure | 
              210 | 
            
             
               | 
              (e) | 
              Methyl 
                Alcohol and Oils by Decomposition of Formates | 
              211 | 
            
             
              Section 
                16 
                610kb | 
               | 
              (f) | 
              Synthol 
                From Carbon Monoxide and Water Vapour Under Pressure | 
              213 | 
            
             
               | 
              (g) | 
              Catalytic 
                Experiments in the Presence of Nitrogen | 
              219 | 
            
             
               | 
              (h) | 
              Catalytic 
                Experiments with Carbon Dioxide and Hydrogen under Pressure | 
              221 | 
            
             
               | 
              (i) | 
              Synthol 
                from Water Gas Under Pressure | 
              221 | 
            
             
               | 
               | 
              1. | 
              On 
                the Need of a Metallic Hydrogen Carrier in the Contact Material | 
              221 | 
            
             
               | 
               | 
              2. | 
              Influence 
                of the Form and Length by the Contact Material | 
              223 | 
            
             
               | 
               | 
              3. | 
              Influence 
                of Bases and their Quantity upon the Oil Yield | 
              224 | 
            
             
              Section 
                17 
                646kb | 
               | 
               | 
              4. | 
              Experiments 
                with Hydrogen Carriers other than Iron | 
              227 | 
            
             
               | 
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              5. | 
              Influence 
                of the Composition of Water Gas | 
              229 | 
            
             
               | 
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              6. | 
              Influence 
                of Impurities in Water Gas | 
              232 | 
            
             
               | 
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              7. | 
              Influence 
                of Temperature, Pressure and Gas Velocity | 
              232 | 
            
             
               | 
               | 
              8. | 
              Determination 
                of Yields in the Circulation Apparatus | 
              234 | 
            
             
               | 
              (k) | 
              Carbon 
                Dioxide and Hydrogen in the Circulation Apparatus | 
              240 | 
            
             
               | 
              (l) | 
              Carbon 
                Dioxide and Methane in the Circulation Apparatus | 
              241 | 
            
             
              Section 
                18 
                641kb | 
               | 
              (m) | 
              Carbon 
                Monoxide and Methane in the Circulation Apparatus | 
              241 | 
            
             
               | 
              (n) | 
              Examination 
                of Products of Reaction | 
              246 | 
            
             
               | 
              (o) | 
              Road 
                Tests of Synthol | 
              248 | 
            
             
               | 
              (p) | 
              Conversion 
                of Synthol into Synthin | 
              248 | 
            
             
               | 
              (q) | 
              Formation 
                of Petroleum from Water Gas | 
              248 | 
            
             
               | 
              (r) | 
              Attempt 
                at an Explanation of the Synthol Process | 
              250 | 
            
             
              Section 
                19 
                664kb | 
               | 
              (s) | 
              Industrial 
                Applicability of the Synthol Process | 
              255 | 
            
             
              | V. | 
              Hydrocarbons 
                from Carbides | 
              258 | 
            
             
               | 
              (a) | 
              Carbides 
                which Directly Yield Liquid Hydrocarbons | 
              258 | 
            
             
               | 
              (b) | 
              Carbides 
                Giving Hydrocarbons which can be Converted inot Liquids | 
              261 | 
            
             
              | Appendix 
                (Editor's Notes) | 
              263 | 
            
             
               | 
              (a) | 
              Recent 
                Developments in Low-Temperature Carbonisation | 
              263 | 
            
             
               | 
               | 
               | 
              Parker 
                Plant | 
              263 | 
            
             
               | 
               | 
               | 
              Maclaurin | 
              266 | 
            
             
              Section 
                20 
                825kb | 
               | 
              (b) | 
              Lessing 
                Process for the Separation of Oils and Pitch from Tar | 
              269 | 
            
             
               | 
              (c) | 
              Hydrogenation 
                of Coal in the Absence of Oil | 
              271 | 
            
             
              | Bibliography | 
              274 | 
            
             
              | Index | 
              279 |