A chemical plant or a petrochemical plant or a refinery may include one or more pieces of equipment that process one or more input chemicals to create one or more products. For example, catalytic dehydrogenation can be used to convert paraffins to the corresponding olefin. A delta temperature controller may determine and control differential temperature across the reactor, and use a delta temperature to control a set point for a heater temperature controller. By doing so, the plant may ramp up a catalytic dehydrogenation unit faster and ensure it does not coke up the catalyst and/or foul a screens too quickly. Catalyst activity may be taken into account and allow the plant to have better control over production and run length of the unit.

A system and method for producing 1-butene and ultra-high-molecular-weight polyethylene (UHMWPE), including feeding a catalyst, an antifouling co-catalyst, and ethylene to a reactor, and dimerizing ethylene into 1-butene and polymerizing a relatively small portion of the ethylene into UHMWPE. A product slurry including 1-butene and UHMWPE is discharged from reactor and UHMWPE is removed from the product slurry as a coproduct of the product 1-butene. The coproduct UHMWPE may be a byproduct that is a relatively small amount of the product slurry. The quantity of UHMWPE produced may be small in comparison to the quantity of 1-butene produced.

In chemical processes for cracking hydrocarbons, reactors are subject to coking. This results in carburization of the metal substrate for the reactor leading to a reduced reactor life. If the reactor is subject to a decoke process, followed by a steam scour and nitriding there is a reduced tendency to carburization of the metal substrate improving the reactor life.

The invention relates to a distributor device, to a method for guiding materials, and to a method for cleaning a distributor device. The distributor device for guiding materials, in particular particulate pharmaceutical solids, comprises: a process chamber (2) having at least one inlet opening (3) and having at least two outlet openings (4), a distributor element (5) for distributing the materials, wherein the distributor element (5) extends through the process chamber (2) in order to connect the inlet opening (3) to one of the outlet openings (4), wherein the distributor element (5) is arranged rotatably about an axis of rotation (6), and a cleaning apparatus (7) which is configured to clean the process chamber (2) and the distributor element (5).

Provided are a fouling inhibitor and a method of oligomerizing an olefin using the same. More particularly, in the method of oligomerizing an olefin, it is possible to minimize a total amount of polymers produced during a reaction and basically inhibit fouling of the polymers produced during the reaction onto an inner wall of a reactor by injecting a predetermined fouling inhibitor.

A means for retaining particulate matter, for use in process equipment operated with a fluid, including: a particle retention chamber, a means of suspension, a means of fastening, a support, wherein the particle retention chamber is configured to be suspended from the support by the means of suspension; the means of fastening is configured to fasten the means of suspension to the support.

The present invention relates generally to the generation of bio-products from organic matter feedstocks. More specifically, the present invention relates to improved methods for the hydrothermal/thermochemical conversion of lignocellulosic and/or fossilised organic feedstocks into biofuels (e.g. bio-oils) and/or chemical products (e.g. platform chemicals).

A means for retaining particulate matter, for use in process equipment operated with a fluid, including: a particle retention chamber, a means of suspension, a means of fastening, a support, wherein the particle retention chamber is configured to be suspended from the support by the means of suspension; the means of fastening is configured to fasten the means of suspension to the support.

The invention relates to a method for cleaning a phosgene conducting apparatus, comprising: washing the apparatus with hot inert gas, followed by washing the apparatus with cold inert gas; conveying gaseous ammonia for breaking down phosgene residues with a continuous increase in temperature until a maximum temperature ranging between 30 C. to 120 C. is reached; once the maximum temperature is reached, shutting down the ammonia supply and the conveying of inert gas, optionally (and preferably) followed by washing the apparatus with an aqueous stream.

A method for manufacturing a polymer by performing an anionic polymerization reaction by a flow-type reaction, including: introducing a liquid A containing an anionic polymerizable monomer, a liquid B containing an anionic polymerization initiator, and a polymerization terminator into different flow paths respectively and causing the liquids to flow in the respective flow paths; causing the liquid A and the liquid B to join together by using a multilayered cylindrical mixer; subjecting the anionic polymerizable monomer to anionic polymerization while a solution formed by the joining is flowing to downstream in the reaction flow path; and causing a polymerization reaction solution flowing in a reaction flow path and the polymerization terminator to join together such that the polymerization reaction is terminated; and a flow-type reaction system suitable for performing the manufacturing method.