Processes for upgrading resid hydrocarbon feeds are disclosed. The upgrading processes may include: hydrocracking a resid in a first reaction stage to form a first stage effluent; hydrocracking a deasphalted oil fraction in a second reaction stage to form a second stage effluent; fractionating the first stage effluent and the second stage effluent to recover at least one distillate hydrocarbon fraction and a resid hydrocarbon fraction; feeding the resid hydrocarbon fraction to a solvent deasphalting unit to provide an asphaltene fraction and the deasphalted oil fraction.

Multistage resid hydrocracking

The invention discloses a heavy oil hydroprocessing method and an internal loop reactor used by the method In the heavy oil hydroprocessing method of the invention, the internal loop reactor is internally divided into two reaction segments, namely a fluidized bed reaction segment in a sleeve and a fixed bed reaction segment of a loop gap, and the mixture of heavy oil and hydrogen gas enters the reactor from the bottom and passes through the fluidized bed reaction segment first to undergo hydrogenation in the presence of a fluidized bed catalyst; and the catalyst is separated from the mixtureafter the reaction by a separator arranged on the upper part of the sleeve, and gas and liquid continuously go downwards to enter the fixed bed reaction segment of the loop gap to further undergo thehydrogenation in the presence of a fixed bed catalyst The method has the combined characteristics of the fluidized bed and fixed bed hydrogenation processes, is well adapted to inferior raw materialoil with high metal and high asphaltene content and can realize the long-period stable operation of the device under the condition of achieving a high conversion rate and a high impurity removal rate

Heavy oil hydroprocessing method and reactor

A system and method of cracking hydrocarbon feedstocks is provided that allows for significant flexibility in terms of the desired product yield. An integrated process includes introducing the feedstock and hydrogen into a first hydrocracking reaction zone containing a first hydrocracking catalyst to produce a first zone effluent. The first zone effluent and optionally additional hydrogen are passed to a second hydrocracking reaction zone containing a second hydrocracking catalyst to produce a second zone effluent. The second zone effluent is conveyed to a fractionating zone to at least a low boiling fraction and a high boiling fraction, and optionally one or more intermediate fractions. The bottoms fraction is passed to a fluidized catalytic cracking reaction and separation zone, from which olefins and gasoline are recovered. At least a portion of remaining cycle oil is passed from the fluidized catalytic cracking reaction and separation zone to the first and/or second hydrocracking reaction zone.

Cracking system and process integrating hydrocracking and fluidized catalytic cracking

The invention belongs to the technical field of coal chemical industry, and provides a coal tar heavy fraction suspension-bed hydrocracking method. The method comprises the following steps: mixing raw materials of coal tar heavy fractions with a catalyst and a vulcanizing agent to form a uniform mixed material; vulcanizing the catalyst in the mixed material under the action of hydrogen; preheating the vulcanized mixed material, and then allowing the preheated material to enter a suspension-bed reactor for hydrocracking reaction; and fractionating the product from the suspension-bed reactor to finally obtain gaseous hydrocarbon, gasoline fractions, diesel fractions and tail oil. In the invention, by directly adopting the hydrocracking method with a coal tar heavy fraction suspension bed and a system thereof, the coal tar heavy fractions can keep light weight, and the yield of the fuel oil product hydrogenated by coal tar can be effectively increased; and the suspension-bed hydrogenation reactor has simple structure without a bed layer, thus causing no phenomena such as blockage, increased pressure drop, overtemperature and the like occurred on the reaction bed layer, and the reactor further has the characteristics of great operation flexibility, long operation cycle, being safe and stable, easy control and the like.

Coal tar heavy fraction suspension-bed hydrocracking method and system thereof

Slurry hydrocracking a heavy hydrocarbon feed produces a HVGO stream and a pitch stream. At least a portion of the pitch stream is subjected to SDA to prepare a DAO stream low in metals. The DAO is blended with at least a portion of the HVGO stream to provide turbine or marine fuel with acceptable properties for combustion in gas turbines or for marine fuel grades.

Process and apparatus for producing hydrocarbon fuel and composition

The invention discloses a novel boiling bed combining technique. The technical flows are as follows: a heavy hydrocarbon oil material after being mixed with hydrogen enters a boiling bed reactor in a mode of flowing to the upside for reaction; a gas effluent after reaction is directly fed into a fixed bed reactor in the down stream for carrying out hydrogenation refining; a liquid effluent is discharged under the control of a liquid control system arranged on the reactor and is directly fed into a middle-low temperature low-pressure separator after decompression for separating; the separated gas is fed into the fixed bed for hydrogenation and the liquid is discharged as a catalyzing-cracking material. The combining technique omits a high-temperature high-pressure separating device, avoids hot oil from generating a coking reaction in heat and high-pressure separation; simultaneously the heat source of the gas effluent is fully used to lead the technique to be compact, save energies and save the cost.

Bubbling bed combined process

The invention discloses a regeneration method for a heavy oil hydro-treating catalyst. The regeneration method comprises the following steps of: performing dry distillation, washing with an acidic solution, and performing roasting coke removal treatment, wherein the dry distillation temperature is 300 to 550 DEG C, the acidic solution is a hydrochloric acid-containing solution, the weight ratio of the washing acid to the catalyst is 5 to 50L/Kg, and the acid concentration is 0.1 to 0.5mol/L. Compared with the prior art, the regeneration method has the advantage of well recovering the service performance of an inactivated catalyst.

Regeneration method for heavy oil hydro-treating catalyst

The invention discloses a fluidized bed reactor comprising a reactor shell and a three-phase separator, wherein the three-phase separator is arranged at the upper part inside the reactor shell and is in a sleeve structure including an inner sleeve and an outer sleeve; the upper ends and the lower ends of the inner sleeve and the outer sleeve are in opened structures; the inner sleeve and the outer sleeve both comprise upper segments and lower segments which are connected with each other; the upper segments of the inner sleeve and the outer sleeve are both in reversed frustum-shaped structures, and the lower segments of the inner sleeve and the outer sleeve are both in cylinder-shaped structures; and an opening positioned on the upper end of the outer sleeve is higher than an opening positioned on the upper end of the inner sleeve. The fluidized bed reactor is mainly suitable for chemical reaction carried out under the condition that different liquid and gaseous matters contact with solid particles, has the advantages of large catalyst inventory, high reactor utility ratio, simple structure and easy operation and is suitable for long-periodic stable operation, and the like.

Fluidized bed reactor

The invention discloses a portable nozzle and a fluidized bed reactor with the same, and belongs to the field of petro-chemical machinery The portable nozzle takes oil of which partial pressure is higher than reaction pressure as power; and then the oil flows into a venture tube through the nozzle to form a draft which carries the hot oil to circulate The portable nozzle of the invention is applied to the fluidized bed reactor, can completely satisfy a large amount of circulation liquid phases needed by good gas-liquid distribution and normal solid-phase fluidization in a hydrogenation process of a fluidized bed by using together with a fluidized bed catalyst with a relatively small grain size and a specially designed tree-phase separator, is more in favour of a reaction process, homogenizes bed layer temperature and achieves better catalyst fluidization effect and gas-liquid distribution effect

Portable nozzle and fluidized bed reactor with same

Waste lubricant oil recovery utilization method

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