Abstract:
An integrated process for the production of one or more acetylene derivatives is provided. The integrated process includes a) partially oxidizing a hydrocarbon feedstock to produce a partial oxidation mixture comprising H 2 , CO, and acetylene, b) providing the H 2 and CO of the partial oxidation mixture to a collocated methanol production process to produce a methanol-containing effluent; c) providing the methanol-containing effluent to a collocated carbonylation process to produce an acetic acid-containing effluent; and d) providing the acetylene of the partial oxidation mixture and the acetic acid-containing effluent to one or more of the collocated acetylene-derivative processes following: i) a vinyl acetate monomer production process; ii) an oxidation unit for the production of formaldehyde from the methanol-containing effluent; iii) a vinyl chloride monomer production process, and/or iv) a 1,4-butanediol production process.
Abstract:
The disclosed process provides an improved process for manufacturing and recovering butanediol. More particularly, the disclosed process relates to an improved process for manufacturing and recovering butanediol from feedstock comprising butynediol in a reaction zone at reaction conditions, comprising the steps of reacting butynediol in the liquid phase and hydrogen in a reaction zone containing hydrogenation catalyst, recovering liquid phase product from the reaction zone, passing the recovered liquid phase product into a first liquid pressure let down vessel maintained at specific conditions, recovering first and second streams from the first liquid pressure let down vessel as liquid bottoms and overhead vent gas, respectively, passing the first stream liquid bottoms recovered to a second liquid pressure let down vessel maintained at specific conditions, and the second stream vent gas recovered to a vent gas cooler maintained at specific conditions, passing the gas from the vent gas cooler to a hydrogen recovery zone comprising a membrane filter, whereby the permeate comprises high purity hydrogen gas and the retentate comprises contaminants, recycling the permeate to the reaction zone, and recovering first and second streams from the second liquid pressure let down vessel as liquid bottoms comprising butanediol and overhead vent gas, respectively.
Abstract:
Die vorliegende Erfindung betrifft ein Verfahren zum Abtrenneneines Stoffes aus einer Lösung, bei dem elektromagnetische Strahlung in die Lösung eingestrahlt wird,eine Intensität der elektromagnetischen Strahlung, die von in der Lösung befindlichen Kristallen gestreut wurde, detektiert wird, die detektierte Intensität mit einer Soll-Intensität (I S ) verglichen wird und die Temperatur der Lösung in Abhängigkeit von der Differenz der detektierten Intensität und der Soll-Intensität (I S ) so geregelt wird, dass sich der Betrag dieser Differenz verkleinert. Wenn der Betrag der Differenz der detektierten Intensität und der Soll-Intensität (I S ) kleiner als ein Grenzwertist, wird ein Kristallisationsverfahren begonnen, bei dem Kristalle des Stoffesgewonnen werden, die anschließend abgetrennt werden.
Abstract:
The present disclosure relates generally to catalyst support materials, catalysts and methods for using them, such as methods for converting sugars, sugar alcohols, glycerol, and bio-renewable organic acids to commercially-valuable chemicals and intermediates. One aspect of the invention is catalyst support material including ZrO 2 and one or more oxides of manganese (MnO x ), the catalyst support material being at least about 50 wt% ZrO 2 and MnO x . In certain embodiments, the weight ratio of ZrO 2 to MnO x is within the range of about 1:1 to about 30:1; and/or the catalyst support material is substantially free of any binder, extrusion aid or additional stabilizing agent
Abstract:
Methods and systems are provided for converting methane in a feed stream to butanediol. The method includes processing acetylene as an intermediate stream to form a hydrocarbon stream including butanediol. A hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is treated to convert acetylene to another hydrocarbon process. The method according to certain aspects includes controlling the level of carbon monoxide to prevent undesired reactions in downstream processing units.
Abstract:
The present invention relates to a process for hydrogenation of olefinic or acetylenic bonds. Further, the present invention relates to a process for selective hydrogenation of olefinic or acetylenic bonds and/including triglycerides using modified metal supported on solid acidic metal oxide catalyst and the process for the preparation thereof. The present invention provides a process for hydrogenation of olefinic or acetylenic bonds using metal supported on solid acid metal oxide based catalyst, at moderate conditions. The present invention also relates to the preparation of metal supported on solid acid metal oxide based catalyst for hydrogenation reactions under mild conditions.
Abstract:
L'invention concerne un procédé de préparation d'un mélange (M) comprenant au moins un alcool (Aj), ledit procédé comprenant les étapes suivantes: i) une étape de d'oligomérisation d'au moins un alcool (Ai) en phase gaz conduisant à un mélange (A); et ii) une étape de condensation du mélange (A) conduisant à un flux gazeux et à un flux liquide correspondant à un mélange (A) condensé; et iii) une étape d'hydrogénation en phase liquide du mélange (A) condensé.
Abstract:
The invention provides palladium-catalyzed hydro of bio-oils and certain organic compounds. Experimental results have shown unexpected and superior results for palladium-catalyzed hydro of organic compounds typically found in bio-oils.
Abstract:
Substituted alditol or carbohydrate compounds having a specified general formula (I) are provided. A. method for synthesizing such substituted alditol or carbohydrate compounds is also provided. wherein n is 0, 1, or 2; and R is an alkenyl group having 5 or more carbons.