Provided are systems and related methods for processing organic polymeric feed materialssuch as plasticsto form pyrolysis oil. The disclosed systems can be operated in a continuous manner and utilize novel liquid-solid separation techniques integrated with a novel condensing approach so as to operate in a product-efficient and an energy-efficient manner.

The present disclosure relates to a pyrolysis bio-oil fractional condensation device and method capable of cooling medium self-circulation. The device includes a primary condensation system, a secondary condensation system and a cooling medium self-regulation heat exchange system. The primary condensation system uses the temperature-regulated cooling medium to condense the macromolecular tar by direct heat exchange with the pyrolysis volatiles. The condensed tar is heated, pushed and scraped with a rotary mechanism to prevent adhesion. The spray liquid in the secondary condensation system exchange heat with the uncondensed volatiles directly for secondary condensation. The cooling medium self-regulation heat exchange system realizes self-circulation and self-balance of the cooling medium mass flow and energy flow by integrating heat absorption during biomass raw material feeding and drying, heat release during volatiles condensation, and heat absorption during pyrolysis char cooling, and realized the independent operation of the condensation device in the mobile biomass pyrolysis system.

The invention relates to a distillation apparatus for producing water for injection, comprising: at least one membrane distillation module (500, 600), the module being configured to be flowed through by a liquid to be concentrated, wherein: the module (500, 600) comprises at least one condensation/evaporation stage (50, 60), the condensation/evaporation stage (50, 60) comprises at least one condensation/evaporation element (101, 102), and the condensation/evaporation element comprises at least one condensation unit (101) and at least one evaporation unit (102), the apparatus further comprising: a heating stage (300) configured to generate steam and to provide the steam to the at least one condensation/evaporation stage (50, 60) of the at least one module, and a droplet elimination device (320) comprising a membrane (321) configured to separate droplets from the steam generated by the heating stage.

Systems and methods are provided for controlling vapor recovery in a pressurized system. A first vessel is configured to receive gas or condensate from a station at a first pressure, the first vessel including a first output for outputting vapor to a liquid cooled compressor. A second vessel is configured to receive condensate from the first vessel, the second vessel being controlled to maintain a second pressure that is lower than the first pressure, the second vessel including a first output for outputting vapor to the first vessel, the second vessel including a second output for outputting condensate to a storage container. A second compressor is configured to maintain the second pressure at the second vessel, and a pumping network is configured to transport liquid from the compressor to the first vessel and the second vessel to increase temperatures at the first vessel and the second vessel.

A device for recovery of the atmosphere containing solvent vapours from at least one ink recovery reservoir of a print machine comprising: n (n1) filter(s) arranged at the outlet from at least one ink reservoir (10). Each filter comprises an inlet face, an outlet face, a filter body between the two faces, and conduit(s) for recovering at least part of a liquid condensed on the surface of the inlet face before this liquid has passed through it. Each filter is either: upstream from a condenser, an atmosphere output from the reservoir, passing through the inlet face, and then the filter body and the outlet face before being sent to the condenser;

or downstream from the condenser, an atmosphere from the condenser passing through the inlet face, and then the filter body and the outlet face before being sent to at least one print head of the print machine, respectively.

The present invention is directed to aminosilicone solvent recovery methods and systems. The methods and systems disclosed herein may be used to recover aminosilicone solvent from a carbon dioxide containing vapor stream, for example, a vapor stream that leaves an aminosilicone solvent desorber apparatus. The methods and systems of the invention utilize a first condensation process at a temperature from about 80 C. to about 150 C. and a second condensation process at a temperature from about 5 C. to about 75 C. The first condensation process yields recovered aminosilicone solvent. The second condensation process yields water.

A MEG reclamation process includes the step of increasing above 2,000 ppm the divalent metal salts concentration of a rich (wet) MEG feed stream flowing into a precipitator. The increasing step includes routing a salts-saturated MEG slipstream from the flash separator it to the precipitator. The slipstream may be mixed with a fresh water feed stream, a portion of the rich MEG feed stream, or some combination of the two. The rich MEG feed stream also may be split into two streams, with a portion of the stream being heated and routed to the flash separator and the other portion being combined as above with the removed slipstream. The process can be performed on the slipstream after dilution and prior to entering the precipitator or after being loaded into the precipitator. Removal of the insoluble salts may be done in either a batch or continuous mode.

A multi-stage distillation system includes multiple stages, and each stage Si includes an evaporator Ei and a condenser Ci. Each condenser includes a steam chamber in pressure-connection with a steam chamber of each evaporator of the same stage. Each evaporator has a steam chamber outlet connected to a spray inlet of the next evaporator Ei+1, and the outlet of the last evaporator En connects to the spray inlet of the first evaporator E1 with a respective fluid line to form an evaporator circuit. Each outlet of each condenser Ci connects to the one spray inlet of the previous condenser Ci1, and the outlet of the first condenser C1 connects to the spray inlet of the last condenser Cn with a fluid line to form a condenser circuit. A steam line connects between condensers Ci+1 and Ci or between the evaporators En and E1.

A process of purifying acetic acid is provided. The process includes feeding a stream of acetic acid into a distillation column and distilling acetic acid in the presence of an oxidizing agent in the distillation column, to oxidize oxidizable impurities in the acetic acid, wherein the oxidizing agent is an oxidant capable of cleaving CC bonds. The process further includes removing a distilled acetic acid stream from the distillation column. Further processes for purifying acetic acid and systems for purifying acetic acid are also provided.

A method for the processing, by separation technology, of a gas mixture (k) which is formed from a product stream (d) of a reactor (4) for synthesizing dimethyl ether from synthesis gas (b), and which contains at least dimethyl ether, carbon dioxide and at least one other component which is lower-boiling than carbon dioxide, is proposed. The gas mixture (k) is cooled at a first pressure level from a first temperature level to a second temperature level and a fraction of the gas mixture (k) that remains in gaseous form at the second temperature level is washed in an absorption column (16) with a reflux (v) predominantly containing carbon dioxide. The reflux (v) predominantly containing carbon dioxide is at least partially formed from a fraction of the gas mixture (k) which is separated in liquid form during the cooling.