An apparatus and a method to withdraw samples from a polymerization plant using a defined sequence of steps combined with locking devices for valves opened by a single key.

A moving bed reactor is provided that can allow facilitate performing a reaction involving a three-phase flow under co-axial flow conditions for the solid and liquid portions of the three phase flow, while the gas portion of the three-phase flow is exposed to the solids under radial flow conditions. Methods for using such a moving bed reactor to perform a reaction, such as upgrading of a feed to distillate products, are also provided.

A feed distribution apparatus and method of using such an apparatus are provided for introducing a three-phase flow into a moving bed reactor that is operated under co-current flow conditions. The feed distribution apparatus can allow for separate introduction of liquid and solids in a manner that allows for even distribution of liquid within the solids. The gas portion of the flow can be introduced in any of a variety of convenient manners for distributing gas into a liquid or solid flow.

The present invention relates to a process and apparatus for withdrawing polymer agglomerates from a fluidised bed polymerisation reactor, the polymerisation reactor comprising a bottom zone having a generally conical shape and no fluidisation grid. The agglomerates are withdrawn by using an agglomerate trap below the bottom zone. A value of a process variable indicative of the content of agglomerates in the agglomerate trap is measured and the opening time of the valves transferring polymer to and from the agglomerate trap is adjusted based on the measured value.

Device for metering powder, in particular in clean-rooms, which includes a vessel containing powder and a sealing head with a septum for the vessel, wherein the sealing head is connectable powder-tight with the vessel and the septum powder-tight with the sealing head and the device further includes a vessel holder, which serves to hold the sealing head of the vessel, and the vessel with its opening points downwards, so that the powder can flow out of the vessel, wherein a gap is provided between the sealing head and a holding bowl of the vessel holder, in which a gas flow between the holding bowl and the sealing head can be created. The invention also relates to a use of the device and a metered addition method.

Systems and methods for the gas-phase production of carbon nanotube (CNT)-nanoparticle (NP) hybrid materials in a flow-through pyrolytic reactor specially adapted to integrate nanoparticles (NP) into CNT material at the nanoscale level, and the second generation CNT-NP hybrid materials produced thereby.

A plant and a process for carrying out the continuous production of fatty alcohol from fatty acid ester by catalytic trickle-bed hydrogenation, comprising shaft reactors each containing at least one catalyst fixed bed, which are connected with each other via pipe conduits such that they can be traversed by the educt/product mixture one after the other, in freely selectable order.

A downdraft gasifier and method of gasification with high yield biochar that utilizes a plurality of high throughput, vertically positioned tubes to create a pyrolysis zone, an oxidation zone beneath the pyrolysis zone and a reduction zone beneath the oxidation zone. A rotating and vertically adjustable rotating grate is located beneath the reduction zone of the gasifier. In addition, a drying zone is located above the pyrolysis zone so the heat of the gasifier can be used to dry feedstock before it enters the gasifier. By optimizing the grate height and rpm, feedstock retention time in the drying zone, the drying zone temperature and feedstock moisture content, the result is gasification of biomass with a high yield and continuous biochar production.

A reactor system comprising a first reactor assembly, a first pressure transition assembly, a second reactor assembly and a second pressure transition assembly.

A withdrawal system for withdrawing particulate matter from a high-temperature unit of a high-temperature industrial process is disclosed. The withdrawal system comprises a material storage silo that comprises a vent line containing a first vent valve, one or more temperature sensors to measure temperature of the particulate matter in the material transfer line, and a controller that receives output measurements from the one or more temperature sensors to monitor and control flow of the particulate matter. The system does not contain a receiving vessel located in the material transfer line between the high-temperature unit and the material storage silo.