Patent application number | Description | Published |
20090260657 | METHOD FOR CLEANING DEPOSITS FROM EQUIPMENT THAT HAVE ACCUMULATED DURING A METHOD FOR RECOVERING NMP, BY THE INTRODUCTION OF HOT WATER AND AGITATION - A process is proposed for cleaning an apparatus to remove deposits from a process for the recovery of purified N-methylpyrrolidone (NMP) by evaporating NMP from a contaminated NMP stream which is obtained in a process for the extractive separation of acetylene from the reaction mixture of a partial oxidation of hydrocarbons after expulsion of the acetylene as a gas, wherein hot water is passed into the apparatus and is stirred. | 10-22-2009 |
20100016646 | PROCESS FOR HYDROGENATING BUTADIYNE - In the process for hydrogenating butadiyne over a catalyst which comprises at least one platinum group metal on an inorganic metal oxide as a support, the hydrogenation is performed at a pressure in the range from 1 to 40 bar and a temperature in the range from 0 to 100° C., and from 0.05 to 5% by weight, based on the overall catalyst, of platinum group metal is present on the support. | 01-21-2010 |
20120022308 | PROCESS FOR PREPARING ACETYLENE BY THE SACHSSE-BARTHOLOME PROCESS - A process is proposed for preparing acetylene by the Sachsse-Bartholomé process by combustion of a natural gas/oxygen mixture in one or more burners to obtain a cracking gas which is cooled in two or more stages in burner columns, each burner having one or more burner columns assigned thereto, and said cracking gas being quenched with pyrolysis oil in the first cooling stage, to obtain a low boiler fraction comprising benzene, toluene and xylene from the one or more burner columns, which is cooled with direct cooling water and separated in a phase separator into an aqueous phase and an organic phase which comprises benzene, toluene and xylene and is fully or partly introduced to the top of the one or more burner columns as a return stream, wherein the organic phase comprising benzene, toluene and xylene from the phase separator, prior to full or partial recycling to the top of the one or more burner columns, is supplied to a selective hydrogenation over a catalyst which comprises at least one platinum group metal on an inorganic metal oxide as support, comprising 0.05 to 5% by weight of platinum group metal, based on the total weight of the catalyst, and wherein the selective hydrogenation is performed at a pressure in the range from 10 to 70 bar gauge and a temperature in the range from 0 to 100° C. | 01-26-2012 |
20120119149 | PROCESS AND APPARATUS FOR PREPARING ACETYLENE AND SYNTHESIS GAS - The present invention provides a process for preparing acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen, by first separately preheating the starting gases comprising a hydrocarbon-containing stream and an oxygen-containing stream and then mixing them in a mixing zone and, after they have flowed through the burner block, reacting them in the firing space and then cooling the products rapidly, wherein the surface on the firing space side of the burner block is covered with a purge gas stream and this purge gas stream is introduced through the burner block by means of several bores, where the averaged ratio of effective surface area of the burner block to number of these bores in the burner block for the purge gas stream is within a range from 5 to 100 cm | 05-17-2012 |
20120119150 | PROCESS AND APPARATUS FOR PREPARING ACETYLENE AND SYNTHESIS GAS - A process for preparing acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen, by first separately preheating the hydrocarbon gas and oxygen gas, and then reacting the gases and cooling the products rapidly. The reactor wall is blanketed with a purge gas stream, introduced through a plurality of feed lines. These feed lines deliver purge gas in a vector direction within a 10° angle of the main flow direction of the reactive gas stream. The purge gas is delivered at multiple stages relative to the main flow direction of the reactive gas stream, and the free cross section of the firing space available to the reactive gas stream, at the height of the feed lines of the purge gas stream, is approximately constant. | 05-17-2012 |
20130334464 | PROCESS FOR PREPARING ACETYLENE AND SYNTHESIS GAS - A process for preparing acetylene and synthesis gas by partial oxidation of hydrocarbons with oxygen, is disclosed. The process consists of separately preheating and then mixing a first input stream containing a hydrocarbon and a second input stream containing oxygen, supplying the first input stream and the second input stream via a burner block to a firing space, quenching a cracking gas obtained to produce a process water stream and a product gas stream, cooling the product gas stream in a cooling column by direct heat exchange with cooling water, depleting soot in an electrostatic filter, combining all process water streams and passing through soot channels, subjecting the combined process water stream to a cleaning operation by partial vaporization in a one-stage flash vessel to obtain a cleaned process water stream, and recycling the cleaned process water stream into the process. | 12-19-2013 |
Patent application number | Description | Published |
20090265550 | Method and arrangement for transmitting data in a communication system that employs a multi-hop method - In a multi-hop network, packets are classified into header and user data for coded distribution. The header information, especially the multi-hop information, is separated in a coded manner from the user data, such that each network node need only decode the header in order to forward the packet. The header and the user data are guided, independently from each other, to the hardware of the respective device for separate coding, as if they were complete packets. A hardware accelerated coding of header and user data is possible using different keys. The header also contains integrity protection. | 10-22-2009 |
20090316668 | Method for generating extented route message, method for generating an extended route reply message, extended route request message, extended route reply message and first and second nodes - Route discovery of a route from a source node of an IEEE 802 connection to a destination node of an IEEE 802 connection, including a mesh network path with a source node of the mesh path and a destination node of the mesh path, is initiated by an extended route request message generated by the destination node. The extended route request message includes a flag that indicates whether the source node of the IEEE 802 connection is located inside or outside the mesh network, and either one source address of the source node, if the node is inside the mesh network, or two source addresses covering (a) the source address of the source node of the mesh path and (b) the source address of the source node of the IEEE 802 connection, if the node is outside the mesh network. | 12-24-2009 |
20100042831 | Method and System for Secure Transmission of Data in an Ad Hoc Network - Using at least one network consisting of at least one node, a multi-hop communication system is formed in which data are received and forwarded from a transmitting first node to a second node receiving the data via at least one third node interposed between the first and the second node. For transmission, the data are subdivided into packets that have a useful data portion (payload) and at least one first control data portion associated with the multi-hop method and a second control data portion associated with the network. The data are encrypted using a first public key determined by the first node and the second node, but only the useful data portion is encrypted using the first public key. | 02-18-2010 |
20110064026 | METHOD FOR OPERATING A WIRELESS SENSOR NETWORK AND SENSOR NODE - In a method for operating a wireless sensor network ( | 03-17-2011 |
20110211461 | Method for Data Transmission in a Local Area Network - A method for data transmission in a local are network, wherein data is transmitted on the Media Access Control (MAC) layer within successive time frames between a plurality of first nodes comprising client nodes to a second node comprising a coordinator node for the plurality of first nodes. A synchronizing slot for sending a synchronizing message from the second node to the first nodes includes acknowledgements for time slots used for data transmissions in previous time frames from the first nodes to the second node. The acknowledgements indicate whether a data transmission in the previous time frame was successful. Based on these acknowledgements, retransmission time slots included in the current time frame are used for retransmitting data that have not been transmitted successfully in a time slot of the previous time frame. | 09-01-2011 |
20120224537 | Method for Transmitting a Beacon in a Star Network (Master-Slave Ad Hoc Network) and a Sensor Node in a Star Network - A method for transmitting a beacon for a star network in manufacturing automation, for use in a communications protocol, such as IEEE Standard 802.15.4e, for manufacturing automation, using at least one gateway and at least one sensor node, wherein the beacon comprises a field including information about a number of base time slots in a superframe. | 09-06-2012 |
20140222906 | METHOD AND SYSTEM FOR DOMAIN NAME SYSTEM BASED DISCOVERY OF DEVICES AND OBJECTS - The Specific service instances are requested by a client via a client application. The request is received by a Domain Name System (DNS). The request is resolved by the DNS by determining from information recorded in a DNS system memory and conveyed in the request, a first type T | 08-07-2014 |