67results about How to "Implement coupled operations" patented technology

The invention discloses a hydrocracking process for flexibly producing diesel oil. After the wax oil raw material is pretreated by hydrogenation, it enters the hydrocracking reactor, and the obtained hydrocracking material is divided into two streams, one of which enters the hot high-pressure separator to separate the gas phase and liquid phase; the one that does not enter the high-pressure separator The hydrocracked material is mixed with the gas phase separated by the hot high-pressure separator for gas-liquid separation and fractionation to obtain hydrocracked naphtha, jet fuel, diesel oil and tail oil; the liquid phase separated by the hot high-pressure separator and / or After all the hydrocracking tail oil is mixed, continue to mix with hydrogen for hydroisomerization cracking reaction, and the hydroisomerization cracking material undergoes gas-liquid separation and fractionation to obtain hydroisomerization cracking naphtha, jet fuel, diesel oil and tail oil . The invention provides for the first time a hydrocracking process for simultaneously producing more than two types of jet fuel, diesel oil and tail oil products of different specifications, especially diesel oil with different freezing points, on a set of hydrogenation process equipment.

The invention discloses a flexible paraffin hydrogenation process. The paraffin wax raw material enters the hydrofining reactor, and the material after passing through the upper hydrofining catalyst bed is divided into two streams; one stream of material passes through the gas-liquid separator installed in the middle of the bed, and the separated liquid is drawn out of the refining reactor and mixed with hydrogen into the The hydroisomerization reactor carries out the isomerization reaction; the other material is the gas in the reactor and the remaining liquid mixture flow after extraction, and the mixture flow continues to flow down through the lower hydrofinishing catalyst bed; the resulting hydrofinishing reaction The material and the hydroisomerization reaction material are subjected to gas-liquid separation and fractionation respectively to obtain paraffin products of different specifications. The present invention provides a hydrogenation process for the simultaneous production of two or more paraffin products of different specifications on a set of hydrogenation process equipment for the first time, which can make full use of the heat carried by part of the hydrogenation refining material to realize the hydrogenation refining reactor and hydrogenation process. Coupling operation of hydroisomerization reactors.

The invention discloses a process for hydrogenation, upgrading and pour point reduction of flexible diesel oil. After the diesel raw material is hydrogenated and refined, it enters the hydrogenation upgrading reactor, and the material passing through the upper hydrogenation upgrading catalyst bed is divided into two strands; one strand of material is extracted from the upgrading reactor through the middle of the bed, and enters the hydrogenation downgrading reactor. The decondensation reaction is carried out in the condensing reactor; another stream of material continues to flow downward through the lower hydrogenation modification catalyst bed; specifications of diesel products. The present invention provides for the first time a hydrogenation upgrading process for simultaneous production of two or more diesel products of different specifications on a set of hydrogenation process equipment, which can make full use of the heat carried by part of the upgrading materials to realize the hydrogenation decondensation reactor Coupling operation with hydro-upgrading reactor.

The invention discloses a combination process of hydrogenation upgrading and hydrogenation refining of low-quality diesel oil. The diesel raw material is fractionated to obtain light and heavy fractions, and the light fraction is extracted by aromatics to obtain light aromatic fractions and light non-aromatic fractions; the heavy fraction enters the hydrotreating reactor, and the material after passing through the first hydrotreating catalyst bed is divided into two One stream of material enters the separator, and the obtained liquid is drawn out of the hydrofinishing reactor and the light aromatic fraction enters the supplementary hydrofinishing reactor for supplementary hydrogenation reaction; the other stream of material is mixed with the light non-aromatic fraction and continues to flow downward through the first The second hydrorefining catalyst bed, the hydrorefining stream continues to enter the hydrorefining reactor, and the hydrorefining reaction material and the supplementary hydrorefining reaction material are subjected to gas-liquid separation and fractionation respectively to obtain high-quality diesel products and high-quality FCC feedstocks. material. The invention provides a combined hydrogenation process for simultaneously producing two or more diesel oil fractions with different purposes on a set of hydrogenation process devices.

The invention discloses a combined method of hydrogenation upgrading and hydrogenation refining of low-quality diesel oil. The diesel feedstock is firstly extracted with aromatics to obtain aromatic fractions and non-aromatic fractions; the non-aromatic fractions enter the hydro-upgrading reaction zone under hydro-upgrading conditions, and are separated by hydrofining catalyst bed and hydro-upgrading catalyst bed. The hydrogenated and upgraded material enters the hot high-pressure separator to obtain gas phase and liquid phase. The liquid phase is separated and fractionated to obtain high-quality naphtha and high-quality diesel products; In the hydrofinishing reaction zone, the supplementary hydrofinishing stream obtained through the hydrofinishing catalyst bed continues to undergo gas-liquid separation and fractionation to obtain high-quality FCC feed. The present invention provides for the first time a combined hydrogenation method for simultaneously producing two or more diesel fractions with different purposes on a set of hydrogenation process equipment, which can make full use of the heat carried by partial hydrogenation-upgrading materials and realize effective utilization of energy.

The invention discloses a flexible single-stage two-agent hydrocracking process. The wax oil raw material is mixed with hydrogen and enters the single-stage two-component hydrocracking reactor. The material after passing through the upper hydrogenation pretreatment catalyst and the single-stage hydrocracking catalyst bed is divided into two streams; one stream of material is drawn out from the middle of the bed. stage reactor, enters the hydroisomerization cracking reactor for isomerization cracking reaction; another stream of material continues to flow down through the lower single-stage hydrocracking catalyst bed; the single-stage hydrocracking reaction material and hydroisomerization cracking The reaction materials are separated and fractionated separately to obtain distillate oil and tail oil products of different specifications. The invention provides a single-stage two-dose hydrocracking process for simultaneously producing two or more different specifications of light naphtha, heavy naphtha, jet fuel, diesel oil, and tail oil products on a set of hydrogenation process equipment, which can fully Using the heat carried by part of the cracked material, the coupling operation of the single-stage two-component hydrocracking reactor and the hydroisomerization cracking reactor is realized.

The invention discloses a flexible hydrocracking process. After hydrogenation pretreatment, the wax oil raw material enters the hydrocracking reactor, and the material after passing through the first hydrocracking catalyst bed is divided into two streams; one stream of material is separated, and the obtained liquid is pumped out of the hydrocracking reactor and mixed with hydrogen Then enter the hydroisomerization cracking reactor for isomerization cracking reaction; another stream of material mixture continues to flow downward through the second hydrocracking catalyst bed; the obtained hydrocracking reaction product and hydroisomerization cracking reaction product respectively Carry out gas-liquid separation and fractionation to obtain naphtha, jet fuel, diesel and tail oil products of different specifications. The present invention provides for the first time a hydrocracking process for simultaneous production of two or more different specifications of light naphtha, heavy naphtha, jet fuel, diesel, and tail oil products on a set of hydrogenation process equipment, which can make full use of partial cracking The heat carried by the material realizes the coupled operation of the hydrocracking reactor and the hydroisomerization cracking reactor.

The invention discloses a flexible wax oil hydrogenation treatment process. The wax oil raw material is mixed with hydrogen and enters the first hydrotreating reactor, and the material passing through the upper hydrotreating catalyst bed is divided into two streams; one stream of material is extracted from the first hydrotreating reactor through the middle of the bed, and mixed with LCO mixed into the second hydrotreating reactor for hydrogenation reaction; another stream of material continues to flow down through the lower hydrotreating catalyst bed, and the obtained first hydrotreating reaction material and second hydrotreating reaction material undergo gas-liquid Separation and fractionation to obtain naphtha, diesel and hydrogenated heavy fractions. The invention provides a flexible hydrogenation treatment process for flexibly processing different raw material oils on a hydrogenation device to produce high-quality catalytic cracking raw materials, which can make full use of the heat carried by part of the first hydrogenation treatment materials to realize the first hydrogenation Coupling operation of the hydrotreating reactor and the second hydrotreating reactor.

The invention discloses a flexible hydrocracking process. After the wax oil raw material is pretreated by hydrogenation, it enters the hydrocracking reactor, and the material passing through the upper hydrocracking catalyst bed is divided into two strands; one strand of material is extracted from the hydrocracking reactor through the middle of the bed, and enters the hydrocracking reactor. The isomerization cracking reactor carries out the isomerization cracking reaction; another stream of material continues to flow downward through the lower hydrocracking catalyst bed; the obtained hydrocracking reaction material and hydroisomerization cracking reaction material are subjected to gas-liquid separation and fractionation respectively Get different specifications of naphtha, jet fuel, diesel and tail oil products. The present invention provides for the first time a hydrocracking process for simultaneously producing two or more different specifications of light naphtha, heavy naphtha, jet fuel, diesel oil, and tail oil products on a set of hydrogenation process equipment, which can make full use of partial cracking The heat carried by the material realizes the coupled operation of the hydrocracking reactor and the hydroisomerization cracking reactor.

The invention discloses a flexible hydrocracking process for producing lubricating oil base oil. The wax oil raw material after hydrogenation pretreatment is divided into two parts; one part of the material is separated by a hot high-pressure separator to obtain a liquid phase, and after being mixed with hydrogen, it passes through a hydrocracking catalyst bed containing Y-type molecular sieve; After the gas phase and hydrocracking tail oil are mixed, they pass through the hydroisomerization cracking catalyst bed containing isomerization cracking type molecular sieve; Standard distillate oil and tail oil; part or all of the hydrocracking tail oil is recycled into the isomerization cracking reactor. The process of the present invention can simultaneously produce more than two kinds of naphtha, aviation fuel, diesel oil and tail oil products of different specifications on a set of hydrogenation process equipment, especially high-quality lubricating oil base oil.