Abstract:
PROBLEM TO BE SOLVED: To provide a method by which carbon dioxide can be sufficiently removed from a fluid flow and regeneration of an absorbent can be performed with relatively small energy cost at that time.SOLUTION: The absorbent for removing carbon dioxide from a gaseous flow includes at least one amine and at least one aqueous solution of aminocarboxylic acid and/or aminosulfonic acid. Energy necessary for regeneration of the absorbent can be reduced by using amino carboxylic acid or aminosulfonic acid together with amine.
Abstract:
The invention relates to a method for producing 1,2-dichloroethane, wherein a) ethene, hydrogen chloride, and oxygen are fed into an oxychloridation reactor and converted to a product gas flow containing 1,2-dicloroethane, non-converted ethene, and carbon dioxide, b) 1,2-dichloroethane is separated from the product gas flow, an exhaust gas containing ethene remaining, c) the exhaust is consumed at least partially in that it is returned to the oxychloridation reactor and/or fed into a chemical conversion consuming ethene, particularly a direct chloridization, whereupon d) the product gas flow and/or the exhaust gas is brought into contact with a fluid absorptive material for removing carbon dioxide, said material comprising at least one amine, an amino carbolic acid, an amino carbolic acid salt, an amino sulfonic acid, an amino sulfonic acid salt, or a mixture thereof. The method allows the efficient use of the utilized ethene.
Abstract:
Agente de absorción para la eliminación de gases ácidos a partir de una corriente de fluido, que comprende unadisolución acuosa a) al menos una sal metálica de un ácido aminocarboxílico, y b) al menos un promotor ácido, que es seleccionado entre ácidos fosfónicos orgánicos y ésteres parcialesde los mismos, situándose la proporción molar de b) respecto a a) en el intervalo de 0,0005 a 1,0.
Abstract:
The present invention relates to an apparatus for the tangential introduction of a gas-loaded liquid stream into the top of a column in which gas and liquid are separated. Entry into the column top proceeds through a conventional radially arranged port, to which, however, a special tube construction connects which ensures as smooth as possible non-turbulent flow and its tangential exit into the column top.
Abstract:
En un proceso para preparar isoprenal y/o prenal mediante la puesta en contacto de una corriente de reactantes gaseosos que comprende isoprenol con un catalizador heterogéneo que contiene plata en presencia de oxígeno molecular para obtener una corriente de producto que contiene isoprenal y/o prenal, donde se mantiene una relación de peso de formaldehído con respecto a isoprenol de menos de 0.04 en la corriente de reactantes. El proceso mantiene una alta conversión y selectividad a lo largo del tiempo y evita el atasco del catalizador y la caída de presión.