Uop Lcc

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Christopher R Schindlbeck

John Joseph Senetar

Joseph A Montalbano

Louis A Lattanzio

A process for cracking an olefinic feed comprising diolefins and monoolefins is provided. The process comprises selectively hydrogenating the olefinic feed in a hydrogenation reactor to convert the diolefins to monoolefins to provide a hydrogenated effluent stream. The hydrogenated effluent stream is vaporized to provide a vaporized hydrogenated effluent stream. The vaporized hydrogenated effluent stream is passed to an olefin cracking reactor to provide a cracked olefin stream comprising Cand Colefins. The cracked olefin stream is passed to a recycle column to provide one of an overhead vapor stream comprising Chydrocarbons or a side draw vapor stream comprising C. At least a portion of the overhead vapor stream or the side draw vapor stream is recycled to the olefin cracking reactor.

Process for cracking an olefinic feed comprising diolefins and monoolefins

A chemical plant or a petrochemical plant or a refinery may include one or more pieces of equipment that process one or more input chemicals to create one or more products. For example, catalytic dehydrogenation can be used to convert paraffins to the corresponding olefin. A delta temperature controller may determine and control differential temperature across the reactor, and use a delta temperature to control a set point for a heater temperature controller. By doing so, the plant may ramp up a catalytic dehydrogenation unit faster and ensure it does not coke up the catalyst and/or foul a screens too quickly. Catalyst activity may be taken into account and allow the plant to have better control over production and run length of the unit.

Delta temperature control of catalytic dehydrogenation process reactors

A process is presented for removing the fouling problems associated with the product recovery in a methanol to olefins conversion process. The process includes passing the quenched MTO process stream to a product separator, wherein an intermediate stream is generated and includes water and heavier hydrocarbons. The intermediate stream is processed to remove the buildup of heavier hydrocarbons.

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Arlington Heights, IL, United States of America

Christopher R Schindlbeck