Abstract:
Cellular and multi-cellular polystyrene and polystyrenic foams and methods of forming such foams are disclosed. The foams include an expanded polystyrene formed from expansion of an expandable polystyrene including an adsorbent comprising alumina, wherein the multi-cellular polystyrene exhibits a multi-cellular size distribution. The process for forming a foamed article includes providing a formed styrenic polymer and contacting the formed styrenic polymer with a first blowing agent and an adsorbent comprising alumina to form extrusion polystyrene. The process further includes forming the extrusion styrenic polymer into an expanded styrenic polymer and forming the expanded styrenic polymer into a foamed article.
Abstract:
A method of making a catalyst containing nanosize zeolite particles supported on a support material is disclosed. A process for making styrene or ethylbenzene by reacting toluene with a C1 source over a catalyst containing nanosize zeolite particles supported on a support material is disclosed.
Abstract:
Methods and systems for the dehydrogenation of hydrocarbons include a direct contact condenser to remove compounds from an offgas process stream. The reduction of compounds can decrease duty on the offgas compressor by removing steam and aromatics from the offgas. The dehydrogenation reaction system can be applicable for reactions such as the dehydrogenation of ethylbenzene to produce styrene, the dehydrogenation of isoamiline to produce isoprene, or the dehydrogenation of n-pentene to produce piperylene.
Abstract:
An ISBM article is disclosed wherein the ISBM article is made from an HDPE resin having a MI2 of 0.1 to 5.0 dg/min as measured by ASTM D-1238; 190° C./2.16 kg, a density of from 0.940 to 0.970 g/cc as measured by ASTM D792, a peak molecular weight of greater than 40,000 g/mol and a zero shear viscosity between 15,000 and 250,000 Pa·sec.
Abstract:
A method for the oxidative coupling of hydrocarbons includes providing an oxidative catalyst inside a reactor and carrying out the oxidative coupling reaction under a set of reaction conditions. The reactor surfaces that contact the reactants and products do not provide a significant detrimental catalyzing effect. In an embodiment the reactor contains an inert lining or a portion of the reactor inner surface is treated to reduce the detrimental catalytic effects. In an embodiment the reactor contains a lining that includes an oxidative catalyst.
Abstract:
A blown film composition including a first high density polyethylene component and a second high density polyethylene component, wherein the blown film contains a mixture of three or more discrete molecular weight distributions, and wherein the second high density polyethylene component has at least one more discrete molecular weight distribution than the first high density polyethylene component.
Abstract:
A method for determining a TAN-IR for naphthenic acids in crude oil or crude oil fraction may include determining an IR spectrum of a sample of the crude oil or crude oil fraction. The method may include determining an IR spectrum of a neutralized sample of the crude oil or crude oil fraction. The method may include utilizing the IR spectra of the sample and the neutralized sample to determine a modified TAN-IR.
Abstract:
Polymeric compositions and processes of forming the same are described herein. The processes generally include contacting a polyolefin with a polylactic acid in the presence of at least 800 ppm of a radical initiator under extrusion conditions to produce a polyolefin-polylactic acid copolymer.
Abstract:
Alkylation systems and processes are described herein. The alkylation system generally includes a preliminary alkylation system containing a preliminary alkylation catalyst therein and adapted to contact an aromatic compound and an alkylating agent with the preliminary alkylation catalyst so as to alkylate the aromatic compound and form a preliminary output stream, wherein the preliminary alkylation system includes a first preliminary alkylation reactor and a second preliminary alkylation reactor connected in parallel to the first preliminary alkylation reactor and a primary alkylation system adapted to receive the preliminary output stream and contact the preliminary output stream and the alkylating agent with a primary alkylation catalyst disposed therein so as to form a primary output stream.
Abstract:
The method includes providing a high impact polystyrene (HIPS) reaction system, wherein the HIPS reaction system has a devolitalizer downstream of a reactor and injecting a retarding agent into the HIPS reaction system prior to the devolitalizer.