Rothamel
Martin Rothamel, Frankfurt-Niedererlenbach DE
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20090050531 | Method for the Production of Synthetic Fuels from Oxygenates - Disclosed is a method for the production of synthetic fuels, wherein, in a first step, a gas mixture consisting of methanol and/or dimethyl ether and/or another oxygenate and water vapor is reacted at temperatures of 300-600° C. in order to form olefins with, preferably, 268 carbon atoms. In a second step, the olefin mixture thus obtained is oligomerized at an elevated pressure to form higher olefins with predominantly more than 5, preferably 10-20 carbon atoms. According to said method, a) the production of olefins in the first step is carried out in the presence of a gas flow which essentially consists of saturated hydrocarbons which are separated from the product flow of the second step and returned to the first step, and (b) the production of olefins is carried out in the second step in the presence of a flow of water vapor which is separated from the product flow of the first step and returned to the first step. | 02-26-2009 |
Martin Rothamel, Frankfurt Am Main DE
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20130156688 | Process of Producing Zeolite-Based Catalysts for Converting Oxygenates to Lower Olefins - A process of producing a catalyst based on pentasil-type crystalline aluminosilicate is described, including the steps of (a) treating hydrous aluminium oxide with an aqueous, acid-containing medium, (b) mixing the hydrous aluminium oxide treated with aqueous, acid-containing medium from step (a) with an H-zeolite and (c) calcining the mixture obtained in step (b). In addition, a catalyst is disclosed which is obtained by such a process, as well as its use in CMO and OTO processes. | 06-20-2013 |
20160046542 | PROCESS FOR PRODUCING SHORT-CHAIN OLEFINS FROM OXYGENATES - There is proposed a process for producing short-chain olefins by conversion of oxygenates in a multi-stage fixed-bed reactor (OTO reactor) with reaction zones each operated adiabatically, in which the individual stages or reaction zones are covered with beds of a granular, form-selective zeolite catalyst which previously has been subjected to a steam pretreatment in an external, isothermally or quasi-isothermally operated steam pretreatment reactor. By means of the external steam pretreatment according to the invention, higher lifetimes of the catalyst used are obtained as compared to a steam pretreatment in the OTO reactor. The availability of the OTO reactor for the olefin production is increased. | 02-18-2016 |
Martin Rothamel, Frankfurt DE
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20160068452 | PROCESS AND PLANT FOR PRODUCING OLEFINS FROM OXYGENATES - A process for producing olefins from oxygenates can include the following steps: (i) heterogeneously catalyzed conversion of at least one oxygenate to a product stream containing C | 03-10-2016 |
Richard Rothamel, Zelienople, PA US
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20120058227 | Dog Chew Treats - A dog chew treat is fashioned from a composition comprising sugar, fiber, and flour. Preferably, the sugar is dextrose, and the flour is pre-gelatinized wheat flour. The composition may be molded into the shape of a bone, or other treat. A palatant coating may be applied to the molded product. Colors may be added for different aesthetics such as a marbling pattern. Functional ingredients may be used to provide health benefits. | 03-08-2012 |
Richard J. Rothamel, Wexford, PA US
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20130108772 | HEAT ACTIVATED WARM PET FOODS | 05-02-2013 |
20150250211 | HEAT ACTIVATED WARM PET FOODS - An aspect provides a method of preparing a pet food product, comprising: mixing heated water with a highly soluble aromatic composition to form a heated aromatic mixture; adding the heated aromatic mixture to a container comprising a composition comprising a grain based product and a dry pet food palatant; and forming a final pet food product via mixing the composition comprising a grain based product and a dry pet food palatant and the heated aromatic mixture. Other embodiments are described. | 09-10-2015 |