Abstract: A conveying and lock system (10) for introducing a bulk material into a reactor (14) with exclusion of gas and while preventing gas exchange at low pressure differences has a screw shaft (44) on which first windings (46) and second windings (48) are formed. A winding-free section (50) is disposed between the first and the second windings (46, 48) in which the conveyed bulk material is compacted. The compacting causes a bulk material plug which is substantially gas free and, during bulk material transport, the bulk material plug is constantly formed in the conveying and lock system (10) by the screw shaft (44) to prevent gas exchange between the product inlet and the product outlet of the conveying and lock system.

Abstract: Fractional hydrocarbons are recovered from reclaimed plastic materials and/or from oily residues. The reclaimed plastic materials and/or residues are sorted according to type and compacted using a feed system (1,2,3,4) in the absence of air. Thereafter the compacted mass is fed to a melting tank (7) below the liquid level. There the compacted mass is heated, so that a separation occurs into a first liquid phase, a first gas phase and a residue fraction. Thereafter the liquid phase and the first gas phase are transported into an evaporation tank (20) in which a second liquid phase and a second gas phase are formed under continued heat input. The second liquid phase is transferred to a re-heater (23) and is additionally heated there under further heat input so that a third gas phase is formed.

Abstract: A conveying and lock system (10) for introducing a bulk material into a reactor (14) with exclusion of gas and while preventing gas exchange at low pressure differences has a screw shaft (44) on which first windings (46) and second windings (48) are formed. A winding-free section (50) is disposed between the first and the second windings (46, 48) in which the conveyed bulk material is compacted. The compacting causes a bulk material plug which is substantially gas free and, during bulk material transport, the bulk material plug is constantly formed in the conveying and lock system (10) by means of the screw shaft (44) to prevent gas exchange between the product inlet and the product outlet of the conveying and lock system (10).

Abstract: The invention relates to a method for recovering fractional hydrocarbons from recycled plastic fractions, which are sorted according to type and compacted under the exclusion of air using a feed system (1, 2, 3, 4), the compacted mass being supplied to a fusion container (7), where it is heated. The mass is separated into a first liquid phase, a first gas phase and a residual fraction, the liquid phase and the first gas phase are then transported to an evaporation container (20), in which a second liquid phase and a second gas phase are produced by the application of heat. The second liquid phase is transferred to a secondary heater (23) and heated further to produce a third gas phase. The second gas phase and the third gas phase are then supplied to a cracking tower (27), in which further cracking of the long-chained hydrocarbons occurs and short-chained hydrocarbons are produced.