Process and apparatus for producing a naphtha stream is provided. The process comprises providing a kerosene stream to a hydrocracking reactor. The kerosene stream is hydrocracked in the presence of a hydrogen stream and a hydrocracking catalyst in the hydrocracking reactor at hydrocracking conditions comprising a hydrocracking pressure, a hydrocracking temperature, and a liquid hourly space velocity at a net conversion of at least about 90%, to provide a hydrocracked effluent stream comprising liquefied petroleum gas, heavy naphtha fraction and light naphtha fraction. One or more of the hydrocracking conditions are adjusted to maintain a ratio of the light naphtha fraction to the heavy naphtha fraction of at least about 2 by weight, suitably at least about 2.2 and preferably at least about 2.5 in the hydrocracked effluent stream while maintaining the net conversion of at least about 90%.

A process for production of gasoline comprising separating a naphtha feed in a naphtha splitter into a stream comprising i-C.sub.5, a stream comprising C.sub.6 and lighter boiling hydrocarbons, a C.sub.7 stream comprising C.sub.7 hydrocarbons, and a heavy stream comprising C.sub.8 and heavier hydrocarbons; isomerizing at least a portion of the stream comprising C.sub.6 and lighter boiling hydrocarbons in a C.sub.5-C.sub.6 isomerization zone at isomerization conditions to form a C.sub.5-C.sub.6 isomerization effluent; dehydrogenating at least a portion of the stream comprising C.sub.7 hydrocarbons to form a C.sub.7 dehydrogenation effluent comprising C.sub.7 olefins; reforming the heavy stream in a reforming zone under reforming conditions forming a reformate stream; and blending one or more of the stream comprising i-C.sub.5, the C.sub.5-C.sub.6 isomerization effluent, the C.sub.7 dehydrogenation effluent and the reformate stream to form a gasoline blend.

A process for production of gasoline comprising separating a naphtha feed in a naphtha splitter into a stream comprising i-C.sub.5, a stream comprising C.sub.6 and lighter boiling hydrocarbons, a C.sub.7 stream comprising C.sub.7 hydrocarbons, and a heavy stream comprising C.sub.8 and heavier hydrocarbons; isomerizing at least a portion of the stream comprising C.sub.6 and lighter boiling hydrocarbons in a C.sub.5-C.sub.6 isomerization zone at isomerization conditions to form a C.sub.5-C.sub.6 isomerization effluent; dehydrogenating at least a portion of the stream comprising C.sub.7 hydrocarbons to form a C.sub.7 dehydrogenation effluent comprising C.sub.7 olefins; reforming the heavy stream in a reforming zone under reforming conditions forming a reformate stream; and blending one or more of the stream comprising i-C.sub.5, the C.sub.5-C.sub.6 isomerization effluent, the C.sub.7 dehydrogenation effluent and the reformate stream to form a gasoline blend.

A plant or refinery may include equipment such as reactors, heaters, heat exchangers, regenerators, separators, or the like. Types of heat exchangers include shell and tube, plate, plate and shell, plate fin, air cooled, wetted-surface air cooled, or the like. Operating methods may impact deterioration in equipment condition, prolong equipment life, extend production operating time, or provide other benefits. Mechanical or digital sensors may be used for monitoring equipment, and sensor data may be programmatically analyzed to identify developing problems. For example, sensors may be used in conjunction with one or more system components to detect and correct maldistribution, cross-leakage, strain, pre-leakage, thermal stresses, fouling, vibration, problems in liquid lifting, conditions that can affect air-cooled exchangers, conditions that can affect a wetted-surface air-cooled heat exchanger, or the like. An operating condition or mode may be adjusted to prolong equipment life or avoid equipment failure.

A plant or refinery may include equipment such as reactors, heaters, heat exchangers, regenerators, separators, or the like. Types of heat exchangers include shell and tube, plate, plate and shell, plate fin, air cooled, wetted-surface air cooled, or the like. Operating methods may impact deterioration in equipment condition, prolong equipment life, extend production operating time, or provide other benefits. Mechanical or digital sensors may be used for monitoring equipment, and sensor data may be programmatically analyzed to identify developing problems. For example, sensors may be used in conjunction with one or more system components to detect and correct maldistribution, cross-leakage, strain, pre-leakage, thermal stresses, fouling, vibration, problems in liquid lifting, conditions that can affect air-cooled exchangers, conditions that can affect a wetted-surface air-cooled heat exchanger, or the like. An operating condition or mode may be adjusted to prolong equipment life or avoid equipment failure.

An apparatus and a method are used for investigating the naphtha reforming process in catalyst test devices with reactors arranged in parallel. The apparatus has a plurality of reactors arranged in parallel with reaction chambers (R1, R2, . . . ), a product fluid supply, a process control, and at least one analysis unit. Each individual reactor has an outlet line for the product fluid stream, wherein the analysis unit is operatively connected to each outlet line for the product fluid stream and the apparatus is functionally connected to the control of the apparatus. In carrying out the method, naphtha-containing reactant fluid streams are brought into contact with catalysts in the individual reactors and the product fluid streams are subsequently supplied to the online analysis unit from the respective outlet lines of the individual reactors and analyzed. Using the evaluation of the online analytical characterization data, the process parameters of the respective reactor unit are adapted. The process steps of analytical characterization, evaluation, and adaptation of process parameters are repeated for the duration of the investigation.

An apparatus and a method are used for investigating the naphtha reforming process in catalyst test devices with reactors arranged in parallel. The apparatus has a plurality of reactors arranged in parallel with reaction chambers (R1, R2, . . . ), a product fluid supply, a process control, and at least one analysis unit. Each individual reactor has an outlet line for the product fluid stream, wherein the analysis unit is operatively connected to each outlet line for the product fluid stream and the apparatus is functionally connected to the control of the apparatus. In carrying out the method, naphtha-containing reactant fluid streams are brought into contact with catalysts in the individual reactors and the product fluid streams are subsequently supplied to the online analysis unit from the respective outlet lines of the individual reactors and analyzed. Using the evaluation of the online analytical characterization data, the process parameters of the respective reactor unit are adapted. The process steps of analytical characterization, evaluation, and adaptation of process parameters are repeated for the duration of the investigation.

The present application relates to a selective distillation apparatus and a distillation method, which provides a distillation apparatus capable of switching between a serial connection mode and a parallel connection mode on the situation, thereby enabling selective operation of high-efficiency operation and high-capacity operation.

Methods, systems, and apparatuses for monitoring health of a catalyst in a plant by retrieving plant data, comparing the plant data to equilibrium conditions, and sending a notification comprising an indication of the health of the catalyst. A plant may be configured to produce a product using a catalyst. A plant monitoring computing platform may be configured to receive, from sensors and/or computing devices of the plant, plant data and/or lab data corresponding to the catalyst. The plant monitoring computing platform may determine equilibrium conditions corresponding to the plant. Based on a comparison of the plant data, the equilibrium conditions, and/or target equilibrium conditions, the plant monitoring computing platform may send a notification. The notification may comprise an indication of the performance of the catalyst.

Methods, systems, and apparatuses for monitoring health of a catalyst in a plant by retrieving plant data, comparing the plant data to equilibrium conditions, and sending a notification comprising an indication of the health of the catalyst. A plant may be configured to produce a product using a catalyst. A plant monitoring computing platform may be configured to receive, from sensors and/or computing devices of the plant, plant data and/or lab data corresponding to the catalyst. The plant monitoring computing platform may determine equilibrium conditions corresponding to the plant. Based on a comparison of the plant data, the equilibrium conditions, and/or target equilibrium conditions, the plant monitoring computing platform may send a notification. The notification may comprise an indication of the performance of the catalyst.