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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 8. Отображено 8.
02-02-2017 дата публикации

PRODUCTION SYSTEM/PRODUCTION PROCESS FOR ACRYLIC ACID AND PRECURSORS THEREOF

Номер: US20170029352A1
Принадлежит:

Provided herein are systems, and methods of using such systems, for producing acrylic acid from ethylene oxide and carbon monoxide on an industrial scale. The production system/production process has various unit operations, including, for example, a β-propiolactone production system/production process configured to produce β-propiolactone from ethylene oxide and carbon monoxide; a polypropiolactone production system/production process configured to produce polypropiolactone from β-propiolactone; and a glacial acrylic acid production system/production process configured to produce acrylic acid with a high purity by thermolysis of polypropiolactone. 1. A process for producing acrylic acid from a source of β-propiolactone , comprising:contacting a BPL feed stream with a polymerization initiator in a polypropiolactone reaction zone having at least one polymerization reactor that produces a polypropiolactone outlet stream comprising polypropiolactone and β-propiolactone; and,passing at least a portion of the polypropiolactone outlet stream to an acrylic acid production zone comprising a thermolysis reactor that receives the at least a portion of the polypriolactone outlet stream and produces an acrylic acid stream comprising acrylic acid.2. The process of wherein the polymerization initiator is selected from the group consisting of quaternary ammonium salts claim 1 , alkali metal salts of carboxylic acids claim 1 , ammonium acrylate claim 1 , ammonium acetate claim 1 , phosphonium acrylate claim 1 , phosphonium salts claim 1 , sodium acrylate claim 1 , potassium acrylate claim 1 , phosphonium acetate claim 1 , tetra-n-butylammonium acrylate claim 1 , sodium acetate claim 1 , potassium acetate claim 1 , tetra-n-butylammonium acetate claim 1 , trimethylphenylammonium acrylate claim 1 , trimethylphenylammonium acetate claim 1 , or tetraphenyl phosphonium acrylate.3. The process of wherein a radical polymerization inhibitor is present in the polypropiolactone reaction zone. ...

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22-08-2019 дата публикации

ABSORBENT POLYMERS, AND METHODS AND SYSTEMS OF PRODUCING THEREOF AND USES THEREOF

Номер: US20190255512A1
Принадлежит: NOVOMER, INC.

Provided herein are absorbent polymers produced from beta-propiolactone, and methods and systems of producing such polymers. The beta-propiolactone may be derived from ethylene oxide and carbon monoxide. The absorbent polymer may be bio-based and/or biodegradable. The absorbent polymers may be used for diapers, adult incontinence products, and feminine hygiene products, as well as for agricultural applications. 1. A method of producing a polymer , comprising:{'sub': 2', '2, 'sup': +', '−, 'combining beta-propiolactone with a metal compound of formula M, MO, MOH, or MCH═CHCOO), or a combination thereof, to produce acrylic acid, a salt thereof, or a combination thereof; and'}polymerizing the acrylic acid, a salt thereof, or a combination thereof, with a polymerization initiator and optionally a cross-linker to produce the polymer.2. The method of claim 1 , wherein the polymerizing is performed neat or in a non-aqueous media.4. The method of claim 3 , wherein steps (c) and (d) are performed neat or in a non-aqueous media.5. The method of wherein the ionic initiator comprises a salt of an alkali metal claim 3 , a salt of an alkali-earth metal claim 3 , or a combination thereof.6. The method of wherein the ionic initiator comprises a carboxylate salt of an alkali metal claim 3 , a salt of an alkali-earth metal claim 3 , or a combination thereof.7. The method of wherein the ionic initiator is a salt of an alkali metal.8. The method of wherein the ionic initiator has a structure of formula CH═CHCOZ claim 3 , wherein Z is an alkali metal claim 3 , an alkali earth metal claim 3 , ammonium claim 3 , a quaternary ammonium cation claim 3 , or phosphonium.9. The method of claim 8 , wherein the quaternary ammonium cation is a lower alkyl quaternary ammonium cation.10. The method of wherein the ionic initiator is sodium acrylate claim 3 , or potassium acrylate claim 3 , or a combination thereof.11. The method of wherein the ionic initiator is a methacrylate.12. The method of ...

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28-11-2019 дата публикации

METHODS AND SYSTEMS FOR TREATMENT OF ETHYLENE OXIDE

Номер: US20190359581A1
Принадлежит: NOVOMER, INC.

Disclosed are methods for treating an ethylene oxide stream suitable for use in carbonylation reactions. Such treatment uses an inorganic solid to remove water from the ethylene oxide stream. Discloses are also systems to carry out the methods herein. 1. A method of treating ethylene oxide , comprising:wetting a water-removing solid with organic solvent, or ethylene oxide, or a combination thereof; and 'wherein the ethylene oxide feed comprises ethylene oxide and has an initial water content, the treated ethylene oxide stream comprises ethylene oxide and has a water content, and the water content of the treated ethylene oxide stream is lower than the initial water content.', 'continuously contacting the wetted water-removing solid with an ethylene oxide feed to produce a treated ethylene oxide stream,'}2. The method of claim 1 , wherein the treated ethylene oxide stream has a water content at least 50% lower than the initial water content.3. The method of claim 1 , wherein:(i) the initial water content is above 5 ppm; or(ii) the water content of the treated ethylene oxide stream is less than 2 ppm;or both (i) and (ii).4. The method of claim 1 , wherein contacting the wetted water-removing solid with the ethylene oxide feed results in less than 10 wt % of the ethylene oxide polymerizing.5. The method of claim 1 , wherein contacting the wetted water-removing solid with the ethylene oxide feed results in less than 10 wt % of the ethylene oxide being converted to ethylene glycol.6. The method of claim 1 , wherein the water-removing solid is a zeolite claim 1 , clay claim 1 , or silica claim 1 , or any combinations thereof.7. The method of claim 1 , wherein the water-removing solid is a molecular sieve.8. The method of claim 1 , wherein contacting the water-removing solid with ethylene oxide comprises introducing ethylene oxide to the water-removing solid while maintaining the temperature of the ethylene oxide within a specified range.9. The method of claim 1 , wherein ...

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26-07-2018 дата публикации

Methods and systems for treatment of ethylene oxide

Номер: CA3049541A1
Принадлежит: Novomer Inc

Disclosed are methods for treating an ethylene oxide stream suitable for use in carbonylation reactions. Such treatment uses an inorganic solid to remove water from the ethylene oxide stream. Discloses are also systems to carry out the methods herein.

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13-02-2019 дата публикации

ABSORBENT POLYMERS AND METHODS FOR PRODUCTION AND USE

Номер: AR110022A1
Принадлежит: Novomer Inc

Polímeros absorbentes producidos a partir de b-propiolactona, y métodos para su producción. Estos polímeros absorbentes pueden ser reticulados. La b-propiolactona puede derivarse de óxido de etileno y monóxido de carbono. El polímero absorbente puede ser un producto de origen biológico y/o ser biodegradable. Los polímeros absorbentes se pueden usar para pañales, productos para la incontinencia de adultos y productos para la higiene femenina, así como para aplicaciones agrícolas. Absorbent polymers produced from b-propiolactone, and methods for their production. These absorbent polymers can be crosslinked. The b-propiolactone can be derived from ethylene oxide and carbon monoxide. The absorbent polymer can be a product of biological origin and / or be biodegradable. Absorbent polymers can be used for diapers, adult incontinence products and feminine hygiene products, as well as for agricultural applications.

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16-05-2007 дата публикации

Integrated air supply with humidification control for fuel cell energy systems

Номер: DE102006047176A1
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Eine Fluidliefervorrichtung für eine Anordnung für elektrochemische Umwandlung. Bei einer Ausführungsform ist die Anordnung für elektrochemische Umwandlung ein Brennstoffzellensystem. Die Vorrichtung umfasst eine oder mehrere fluidbeeinflussende Kompoenten, die in ein Gehäuse kombiniert sind, um das Gewicht, die Größe und die Komplexität zu minimieren. Bei einer Form kann die Vorrichtung einen Kompressor, einen Wärmetauscher und eine Wasserdampfübertragungseinheit umfassen, wobei zumindest die letzten in einer von dem Gehäuse definierten Kammer angeordnet sind. Eine Steuereinheit kann dazu verwendet werden, das Ausmaß zu überwachen und selektiv zu variieren, in dem zumindest eine dieser Komponenten Eigenschaften eines Fluids (wie Luft) modifiziert, das als ein Reaktand in der Anordnung für elektrochemische Umwandlung verwendet werden kann. Bei einer besonderen Form können der Wärmetauscher und die Wasserdampfübertragungseinheit zusammenarbeiten, um die Hydration des Raktanden zu unterstützen. A fluid delivery device for an electrochemical conversion assembly. In one embodiment, the electrochemical conversion assembly is a fuel cell system. The device includes one or more fluid-influencing components that are combined into a housing to minimize weight, size, and complexity. In one form, the apparatus may comprise a compressor, a heat exchanger and a water vapor transfer unit, at least the last ones being arranged in a chamber defined by the housing. A controller may be used to monitor and selectively vary the extent to which at least one of these components modifies properties of a fluid (such as air) that may be used as a reactant in the electrochemical conversion assembly. In a particular form, the heat exchanger and the water vapor transfer unit may work together to assist in the hydration of the raktanden.

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09-02-2017 дата публикации

Production system/production process for acrylic acid and precursors thereof

Номер: WO2017023820A1
Принадлежит: NOVOMER, INC.

Provided herein are systems, and methods of using such systems, for producing acrylic acid from ethylene oxide and carbon monoxide on an industrial scale. The production system/production processs has various unit operations, including, for example, a β-propiolactone production system/production process configured to produce β-propiolactone from ethylene oxide and carbon monoxide; a polypropiolactone production system/production process configured to produce polypropiolactone from β-propiolactone; and a glacial acrylic acid production system/production process configured to produce acrylic acid with a high purity by thermolysis of polypropiolactone.

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13-09-2019 дата публикации

Methods and systems for treatment of ethylene oxide.

Номер: MX2019008550A
Принадлежит: Novomer Inc

Se describen métodos para tratar una corriente de óxido de etileno adecuado para uso en reacciones de carbonilación. Tal tratamiento usa un sólido inorgánico para eliminar agua de la corriente de óxido de etileno. Se describen también sistemas para llevar a cabo los métodos en la presente.

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