Scientific Design Company, Inc.

Sd Lizenzverwertungsgesellschaft Mbh & Co Kg

Sd Lizenzverwertungsgesellschaft Mbh & Co. Kg Lenbachplatz 6

Sd Lizenzverwertungsgesellschadt Mbh & Co Kg

Sd Lizenzverwertungsgesellschaft Mbh & Co.

Scientific Design LLC

Barry Jay Billig

James Mann

Eunice Yamada

Chun Chau Chan

Shaun McGovern

Norma Beatriz Castagnola

Bhupendra Ranibhai Baria

Katelyn Marvin

Nabil M Rizkalla

Andrzej Rokicki

Christian Gueckel

John Sullivan

An improved process for the recovery of ethylene oxide from the aqueous scrubbing solution in which the ethylene oxide is recovered into a vaporous stream highly enriched in ethylene oxide.

Epoxidation process with concentrated ethylene oxide solutions

An improved catalytic hydration process that includes a catalytic hydration reaction section containing adiabatic reactors with ion exchange resin catalyst and which maintains low resin swelling and excellent selectivity while also reducing process complexity and increasing versatility.

Process for preparing ethylene glycol

Recirculating process for preparing ethylene glycol

A method for improving the manufacture of an existing ethylene glycol manufacturing that includes inserting a catalytic hydration reaction section with multiple adiabatic reactors.

Method for improving the manufacture of ethylene glycol

A process for the preparation of ethanolamines comprising reacting a water-ammonia solution with ethylene oxide to form an effluent reaction mixture comprising unreacted ammonia, water and ethanolamines. This effluent reaction mixture is then subjected to a succession of steps to, inter alia, separate the ethanolamines.

Process for making ethanolamines

A process for the preparation of ethanolamines comprising reacting a water-ammonia solution comprising ammonia and water with ethylene oxide.

A method for assuring safety of a particular chemical process plant includes measuring, for each of a plurality of sets of proposed process conditions for a particular chemical process within the particular chemical process plant, a pressure rise rate following a deliberate contained ignition of at least one material used within the particular chemical process. From the resulting plurality of pressure rise rates that corresponds with the plurality of sets of proposed process conditions a particular pressure rise rate that allows for a safe operation of the particular chemical reaction within the particular chemical process plant may be selected. The particular chemical process may be implemented within the particular chemical process plant while using a particular set of process conditions from the plurality of sets of process conditions that corresponds with the selected pressure rise rate. As an adjunct, the particular chemical reaction may also be subsequently and additionally optimized with respect to an ancillary parameter, such as product yield or feedstock utilization.

Chemical process optimization method that considers chemical process plant safety

This invention relates to a process for reducing the corrosion rate of iron-containing vessels within an ethylene glycol distillation system. The inventive process includes the addition of an additive component of sodium nitrite and sodium hypophosphite into such iron-containing vessels, to thereby react with iron of the inside walls and form a protective coating thereon. This process reduces the corrosion rate in iron-containing vessels of the apparatus, and reduces the catalytic effects of iron corrosion products within the system. Thus, not only is the on-stream time of the vessels extended, but also product quality is improved by reducing the aldehyde content of the final ethylene glycol product.

Method of corrosion prevention

A reactor and heat exchanger assembly is provided with the heat exchanger integrally affixed to the reactor exit head and adapted to immediately cool reactor gases from the reactor.

Exothermic reaction system

A method to achieve a controlled start-up temperature of an expoxidation process which exceeds the maximum achievable temperature of the epoxidation reactor relative to using an external heat source. The method of the present invention employs an oxidation reaction within the reactor to bring the temperature of the reactor to a temperature that is suitable for conditioning a high selectivity catalyst. The method of the present invention includes first bringing a reactor including a high selectivity catalyst to a first temperature using the external heat source to the reactor, while staying within the reactor design limitations and maintaining a gas flow to the reactor that is within 25 to 100% of the design rates. Once the reactor has achieved the first temperature, at least an olefin, e.g., ethylene, and then oxygen are introduced to the reactor feed gas. The olefin and oxygen concentrations are adjusted to have a heat of reaction that will allow raising the reactor gas flow to 100% of design and then have sufficient heat of reaction to raise the reactor temperature to a second temperature which is greater than the first temperature and greater than the temperature of the reactor achievable by the external heat source.

Start-up of high selectivity catalysts in olefin oxide plants

A process for initiating a highly selective ethylene oxide catalyst is provided in which the highly selective ethylene oxide catalyst is operated first as a 'standard' Ag-based catalyst (e.g., a catalyst that contains only silver and alkali metal, especially cesium). Moreover, the inventive initiation procedure is more efficient when the concentration of carbon dioxide in the feed is higher than 6 vol. %, and even more efficient when the concentration of carbon dioxide in the feed is higher than 10 vol. %, of the feed mixture during the initiation period.

Process for initiating a highly selective ethylene oxide catalyst

In an ethylene oxide process, the stripping and reabsorption operations, normally carried out in separate vessels, are carried out in a single vessel which is divided by a baffle into separate sections where reabsorption and stripping are carried out.

Ethylene oxide plant operation

Scrubber liquid from an ethylene oxide process rich in bicarbonate and dissolved ethylene is flashed in two stages to separate ethylene containing vapor from bicarbonate rich solution reduced in ethylene content.

Growing community of inventors

Irvington, NY, United States of America

Barry Jay Billig