Patent application number | Description | Published |
20080288089 | METHODS AND SYSTEMS FOR BATCH PROCESSING AND EXECUTION IN A PROCESS SYSTEM - A system and method for implementing a control process within a process control system and resolving inconsistencies during execution of the control process includes loading the logical structure of the control process, loading a plurality of instantiation objects or processes when the control process is instantiated, using the instantiation objects to instantiate a procedural element of the control process as the control process calls for the procedural element during execution, executing the procedural element as part of the control process, and deconstructing the procedural element as execution of the procedural element is completed during execution of the control process. Resolution of inconsistencies includes executing a first model of an entity in a controller, executing a second model of the entity in an execution engine, detecting a difference between the models, generating a prompt and receiving an operation instruction to continue the process or abort the process. | 11-20-2008 |
20120016494 | METHODS AND SYSTEMS FOR BATCH PROCESSING AND EXECUTION IN A PROCESS SYSTEM - A system and method for implementing a control process within a process control system and resolving inconsistencies during execution of the control process includes loading the logical structure of the control process, loading a plurality of instantiation objects or processes when the control process is instantiated, using the instantiation objects to instantiate a procedural element of the control process as the control process calls for the procedural element during execution, executing the procedural element as part of the control process, and deconstructing the procedural element as execution of the procedural element is completed during execution of the control process. Resolution of inconsistencies includes executing a first model of an entity in a controller, executing a second model of the entity in an execution engine, detecting a difference between the models, generating a prompt and receiving an operation instruction to continue the process or abort the process. | 01-19-2012 |
Patent application number | Description | Published |
20100082132 | Recipe Command Steps and Recipe Inputs from External Logic - A method of generating a product recipe for execution by a batch process in an automated manufacturing environment, such the product recipe is associated with a plurality of actions, a set of transitions, and a set of parameters, and such that the plurality of actions define a plurality of logical levels including a phase level at which the batch process interacts with equipment, includes receiving a procedure definition specifying the plurality of actions, receiving a transaction definition specifying the set of transitions so that each one in the set of transitions is associated with two or more of the plurality of actions, and receiving the set of parameters. Receiving the set of parameters includes receiving at least one dynamic input parameter that resolves to a value without obtaining the value from the recipe or an operator prompt associated at the phase level of the recipe. | 04-01-2010 |
20140094947 | RECIPE COMMAND STEPS AND RECIPE INPUTS FROM EXTERNAL LOGIC - A method of generating a product recipe for execution by a batch process in an automated manufacturing environment, such the product recipe is associated with a plurality of actions, a set of transitions, and a set of parameters, and such that the plurality of actions define a plurality of logical levels including a phase level at which the batch process interacts with equipment, includes receiving a procedure definition specifying the plurality of actions, receiving a transaction definition specifying the set of transitions so that each one in the set of transitions is associated with two or more of the plurality of actions, and receiving the set of parameters. Receiving the set of parameters includes receiving at least one dynamic input parameter that resolves to a value without obtaining the value from the product recipe or an operator prompt associated at the phase level of the product recipe. | 04-03-2014 |
Patent application number | Description | Published |
20080281137 | Process of Using a High Activity Catalyst for the Transalkylation of Aromatics - A process for producing an alkylated aromatic compound from polyalkylated aromatic compound(s) having bi-alkylated aromatic compound(s) and tri-alkylated aromatic compound(s), comprising the step of contacting alkylatable aromatic compound(s) with the polyalkylated aromatic compound(s) at a transalkylation condition in the presence of a transalkylation catalyst. The transalkylation catalyst has high activity sufficient to achieve a ratio of bi-alkylated aromatic compound(s) conversion over tri-alkylated aromatic compound(s) conversion in a range of from about 0.5 to about 2.5. | 11-13-2008 |
20090036722 | Alkylaromatics production - A process is described for producing an alkylaromatic compound, in which a first feed comprising an alkylatable aromatic compound and a second feed comprising an alkene are introduced into a first alkylation reaction zone comprising a first alkylation catalyst. The first alkylation reaction zone is operated under conditions effective to cause alkylation of the alkylatable aromatic compound by the alkene to produce said alkylaromatic compound, the conditions being such that the alkylatable aromatic compound is at least predominantly in the vapor phase. A first effluent comprising the alkylaromatic compound and unreacted alkylatable aromatic compound is withdrawn from the first alkylation reaction zone and at least part of the unreacted alkylatable aromatic compound is treated to remove catalyst poisons therefrom and produce a treated unreacted alkylatable aromatic stream. At least part of the unreacted alkylatable aromatic compound and a third feed comprising said alkene is introduced into a second alkylation reaction zone comprising a second alkylation catalyst. The second alkylation reaction zone is operated under conditions effective to cause alkylation of the unreacted alkylatable aromatic compound by the alkene to produce said alkylaromatic compound, the conditions being such that the alkylatable aromatic compound is at least predominantly in the liquid phase. A second effluent comprising said alkylaromatic compound is withdrawn from the second alkylation reaction zone. | 02-05-2009 |
20100069693 | Liquid Phase Alkylation with Multiple Catalysts - A process is disclosed for producing an alkylaromatic compound in a multistage reaction system comprising at least first and second series-connected alkylation reaction zones, each containing an alkylation catalyst. A first feed comprising an alkylatable aromatic compound and a second feed comprising an alkene are introduced into the first alkylation reaction zone. The first and second alkylation reaction zones are operated under conditions of temperature and pressure effective to cause alkylation of the aromatic compound with the alkene in the presence of the alkylation catalyst, the temperature and pressure being such that the aromatic compound is at least partly in the liquid phase. The alkylation catalyst in the first alkylation reaction zone, which may be a reactor guard bed, has more acid sites per unit volume of catalyst than the alkylation catalyst in the second reaction zone. | 03-18-2010 |
20100076237 | Alkylaromatics Production - A process for alkylation or transalkylation of an alkylatable aromatic compound having reactive impurities with an alkylating agent to produce a monoalkylated aromatic compound, comprising the steps of contacting at least a portion of said alkylatable aromatic compounds and said alkylating agent with a first molecular sieve catalyst in a guard bed under suitable conditions to remove said reactive impurities and form a first effluent comprising monoalkylated aromatic compound, unreacted alkylatable aromatic compounds and unreacted alkylating agent; contacting said first effluent with a second molecular sieve catalyst different from said first molecular sieve catalyst in said reaction zone under suitable alkylation or transalkylation conditions to produce additional said monoalkylated aromatic compounds; and maintaining said water content from about 1 wppm to about 10 wt. % based on the combined weight of said alkylatable aromatic compound and said alkylating agent in said reaction zone for the majority of the on-oil time. | 03-25-2010 |
20100191028 | Process for Preparing Ethylbenzene Using Vapor Phase Alkylation and Liquid Phase Transalkylation - Disclosed are ethylbenzene processes in which a series-arranged or combined vapor phase alkylation/transalkylation reaction zone is retrofitted to have a vapor phase alkylation reactor and a liquid phase transalkylation reactor, and in which a parallel-arranged vapor phase alkylation reactor and vapor phase transalkylation reactor is retrofitted to have a vapor phase alkylation reactor and liquid phase transalkylation reactor, wherein the xylenes content of the ethylbenzene product is less than 700 wppm. | 07-29-2010 |
20110178352 | Process For Preparing Ethylbenzene Using Vapor Phase Alkylation And Liquid Phase Transalkylation - Disclosed are ethylbenzene processes in which a series-arranged or combined vapor phase alkylation/transalkylation reaction zone is retrofitted to have a vapor phase alkylation reactor and a liquid phase transalkylation reactor, and in which a parallel-arranged vapor phase alkylation reactor and vapor phase transalkylation reactor is retrofitted to have a vapor phase alkylation reactor and liquid phase transalkylation reactor, wherein the xylenes content of the ethylbenzene product is less than 700 wppm. | 07-21-2011 |
20110224469 | Alkylated Aromatics Production - Disclosed is a process for the production of alkylated aromatics by contacting a feed stream comprising an alkylatable aromatic, an alkylating agent and trace amounts of water and impurities in the presence of first and second alkylation catalysts wherein the water and impurities are removed in order to improve the cycle length of such alkylation catalysts. Water and a portion of impurities are removed in a dehydration zone. A first alkylation zone having a first alkylation catalyst which, in some embodiments is a large pore molecular sieve, acts to remove a larger portion of impurities, such as nitrogenous and other species, and to alkylate a smaller portion of the alkylatable aromatic compound. A second alkylation zone, which in some embodiments is a medium pore molecular sieve, acts to remove a smaller portion of impurities, and to alkylate a larger portion of the alkylatable aromatic compound. | 09-15-2011 |
20130137910 | Alkylation Process - The present invention provides an improved process for the catalytic conversion of a feedstock comprising an alkylatable aromatic compound and an alkylating agent to form a conversion product comprising the desired alkylaromatic compound by contacting said feedstock in at least partial liquid phase under catalytic conversion conditions with a catalyst composition comprising a porous crystalline material having a structure type of FAU, BEA* or MWW, or a mixture thereof, wherein the porous crystalline material has a Relative Activity measured at 220° C. as an RA | 05-30-2013 |
20130197287 | ALKYLATION PROCESS - The present invention provides an improved process for producing an alkylated aromatic compound from an at least partially untreated alkylatable aromatic compound having catalyst poisons, wherein said alkylatable aromatic compound stream is treated to reduce catalyst poisons with a treatment composition having a surface area/surface volume ratio of greater than or equal to 30 in | 08-01-2013 |
20130203179 | Method for Monitoring Performance of Process Catalysts - Disclosed is a method for determining when to replace a guard bed material used to remove one or more catalyst poisons from a feed based on a parameter change in a process. A guard bed having a guard bed material is in fluid communication with a catalyst bed having a catalyst. At least three monitors are positioned in said guard bed or said catalyst bed and at least one parameter of the guard bed or catalyst bed is monitored. A feed component comprising one or more catalyst poisons is supplied to said guard bed or said catalyst bed. The feed is contacted with said guard bed material or said catalyst to remove at least a portion of a catalyst poison and to form a product which produces an increase or a decrease in said parameter. The monitored parameters are compared to determine when to replace the guard bed material. | 08-08-2013 |
20130211164 | Alkylation Process - The present invention provides an improved process for producing an alkylated aromatic compound from an at least partially untreated alkylatable aromatic compound having catalyst poisons and an alkylating agent, wherein said alkylatable aromatic compound stream is treated to reduce catalyst poisons with a treatment composition having a surface area/surface volume ratio of greater than or equal to 30 in | 08-15-2013 |
20140135548 | Alkylated Aromatics Production - Disclosed is a process for the production of alkylated aromatics by contacting a feed stream comprising an alkylatable aromatic, an alkylating agent and trace amounts of water and impurities in the presence of a first catalyst and an alkylation catalyst wherein such water and impurities are removed in order to improve the cycle length of such alkylation catalysts. Water and at least a portion of impurities are removed in a dehydration zone. A reaction zone having a first catalyst which, in some embodiments is a large pore molecular sieve, acts to remove another portion of impurities, such as nitrogenous and other species. An alkylation zone having an alkylation catalyst which, in some embodiments is a medium pore molecular sieve or a MCM-22 family material, acts to remove additional impurities, and to alkylate the alkylatable aromatic compound. | 05-15-2014 |
20150025286 | Production of Monoalkyl Aromatic Compounds - The present disclosure relates to a process for production of a monoalkyl aromatic compound by alkylation of alkylatable aromatic compounds with an alkylating agent in a reactor comprising at least a first and a second series-connected alkylation reaction zones and a cooler disposed between the first and the second series-connected alkylation reaction zones. The process comprising a step of cooling at least a portion of an effluent withdrawn from the first alkylation reaction zone before being introduced into the second alkylation reaction zone. | 01-22-2015 |