61results about How to "Increase isohydrocarbon content" patented technology

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 regular structure desulfurization catalyst and a preparation method thereof, and a sulfur-containing hydrocarbon desulfurization method. The catalyst comprises a regular structure carrier and an active component coating distributed on the inner surface and / or outer surface of the regular structure carrier, wherein the active component coating comprises, by weight, 5-70 wt% of a transition metal nitride and 30-95 wt% of a matrix, and the matrix comprises, by weight, 70-90 wt% of the oxide of at least a metal selected from group IIA and group IIB, and 10-30 wt% of silicon oxide. The catalyst of the present invention has good desulfurization activity and good desulfurization stability, and can improve the octane number of the desulfurized oil product.

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 high-stability modified Y-type molecular sieve for high production of isomerized C4 and a preparation method of the high-stability modified Y-type molecular sieve. The CaO content of the modified Y-type molecular sieve is 0.3-4 wt%, the RE2O3 content is 2 to 7 wt%; the content of Na2O is 0.1 to 0.5 wt%; the total pore volume is 0.33 mL / g to 0.39 mL / g; the pore volume of the secondary pores of 2-100nm accounts for 10-25% of the total pore volume; the lattice constant is 2.440-2.455 nm, the content of non-framework aluminum accounts for not more than 20% of the total aluminum content, the lattice collapse temperature is not lower than 1050 DEG C, and the ratio of the amount of acid B to the amount of acid L measured by a pyridine adsorption infrared method at 200 DEG C is not lower than 2.30. The preparation method comprises the steps of ion exchange, modification treatment under certain temperature and water vapor conditions and reaction with silicon tetrachloride. The modified Y-type molecular sieve has higher heavy oil conversion activity, lower coke selectivity, higher gasoline yield and isomeric C4 yield, and higher isomeric hydrocarbon content in gasoline.

The invention discloses a regular structure desulfurization catalyst and a preparation method thereof, and a sulfur-containing hydrocarbon desulfurization method. The catalyst comprises a regular structure carrier and an active component coating distributed on the inner surface and / or outer surface of the regular structure carrier, wherein the active component coating comprises, by weight, 5-70 wt% of a transition metal carbide and 30-95 wt% of a matrix, and the matrix comprises, by weight, 5-35 wt% of a non-aluminum binder, 0.5-10 wt% of a rare earth oxide, and 60-90 wt% of the oxide of at least a metal selected from group IIA and group IIB. The catalyst of the present invention has good desulfurization activity and good desulfurization stability, and can improve the octane number of thedesulfurized oil product.