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A kind of oil-coal co-refining method using short-circulation hydrogen supply solvent oil

A technology for circulating solvents and hydrogen-supplying solvents, which is applied in the treatment of hydrocarbon oil, the petroleum industry, and the preparation of liquid hydrocarbon mixtures, etc., and can solve the problems of unreported, small output, low cracking conversion rate, etc.

Active Publication Date: 2020-04-10
洛阳瑞华新能源技术发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0040] ④ The stable reaction process of hydrogenation solvent hydrogenation RX0 is usually a process with a low cracking conversion rate. Conventional gaseous hydrocarbons such as CH 4 、C 2 、C 3 、C 4 less output
[0045] ②In the high-pressure stirred tank reaction, the gas phase reaction product can quickly leave the liquid phase and enter the upper gas phase, and almost no longer contact with the liquid phase. However, industrial equipment cannot do this anyway, and cannot set up enough intermediate Gas-liquid separator, to separate the gas phase products in time; it can only be used for approximate operation;
[0049] Method of the present invention has no report

Method used

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  • A kind of oil-coal co-refining method using short-circulation hydrogen supply solvent oil
  • A kind of oil-coal co-refining method using short-circulation hydrogen supply solvent oil
  • A kind of oil-coal co-refining method using short-circulation hydrogen supply solvent oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0446] 100 tons / hour of raw coal powder and 100 tons / hour of petroleum residue oil and coal co-refining hydrogenation process, using the combination method of the pre-solvent oil hydrogenation stabilization reaction process R30 and oil coal co-refining hydrogenation reaction process R10 of the present invention, The operating conditions are as follows:

[0447] (1) In the oil-coal slurry preparation process M10, raw coal powder SF and 100 tons / hour petroleum residue SHVGO are made into oil-coal slurry R10F according to a weight ratio of 1:1, and the solid concentration of the coal slurry is 50% by mass;

[0448] (2) In the oil-coal co-refining hydrogenation reaction process R10, the reaction temperature is 400-455°C, the reaction pressure is 18-20MPa, the gas-liquid volume ratio is 700-800NL / kg, and the amount of liquefaction catalyst added is the weight of dry coal powder 1.5 to 2% by mass, to ensure that the gas phase hydrogen sulfide volume concentration in the reaction space...

Embodiment 2

[0470] Based on Embodiment 1, the following steps are added:

[0471] (7) In the solvent oil hydrogenation stable reaction process R20, in the presence of hydrogen gas and solvent oil hydrogenation catalyst, at least a part of the hydrogen-donating hydrocarbon precursor R20F undergoes partial saturation reaction of aromatic hydrocarbon hydrogenation and converts into a reaction effluent rich in hydrogen-donating hydrocarbons R20P;

[0472] In the solvent oil hydrogenation stabilization reaction process R20, the conventional boiling point of the reaction effluent R20P is higher than 250°C hydrocarbons: the weight content of partially saturated aromatic hydrocarbons is greater than 20%, and the aromatic carbon rate is 0.45-0.60; in the solvent oil hydrogenation stabilization reaction In process R20, the hydrogenation catalyst used is a Ni-Mo, Ni-Co or Ni-W hydrogenation catalyst; the reaction temperature is 350-370°C, the hydrogenation pressure is 18-20MPa, and the gas-liquid vo...

Embodiment 3

[0480] Based on Embodiment 1, the following steps are added:

[0481] 80% of the liquefaction residue VS is used as the product raffinate VSP, and 20% of the liquefaction residue VS is used as the liquefaction residue recycle material VSR through the oil-coal slurry preparation process M10 as a coal slurry preparation solvent to circulate back to the oil-coal co-refining hydrogenation reaction process R10.

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Abstract

A coal-oil coprocessing method utilizing short-cycle hydrogen-donor solvent oil is disclosed. Hydrocarbon oil in gas R10P-HS-V, obtained by a hot high-pressure separator, of a product R10P of a coal-oil coprocessing reaction process R10 into which coal pulp obtained by utilizing non-coal-derived oil is pumped is converted through an online solvent oil hydrogenation modification reaction process R30 into a product R30P comprising a gas phase R30P-V and an oil phase R30P-L, and a stream at least partially comprising the oil phase R30P-L is fed into the R10 and adopted as a short-cycle hydrogen donor SR-LBDS to produce an active-hydrogen-rich reaction condition in a low cost. A product obtained by feeding oil R10P-MS-L, obtained through warm high-pressure separation, of the R10P-HS-V into theR30 after the R10P-MS-L is pressurized is fed into the R10 in a self-pressure manner, and therefore procedures are more simplified. The R10 can utilize high-concentration oil-coal pulp, a pre-hydrogenation section, an interstage gas liquid separation process, injection of the hydrogen-donor solvent according to batches and types, and a hydrogen gas stripping type hot high-pressure separator is adopted by products.

Description

technical field [0001] The invention relates to an oil-coal co-refining method using short-cycle hydrogen-supplying solvent oil. The non-coal derived oil is blended with coal slurry and then pressed into the oil-coal co-refining hydrogenation reaction process R10 obtained from the product R10P. The hydrocarbon oil in V is converted into product R30P comprising gas phase R30P-V and oil phase R30P-L through online solvent oil hydrogenation modification reaction process R30, and at least a part of the stream comprising oil phase R30P-L enters R10 for use As a short-flow cycle hydrogen supply agent SR-LBDS, low-cost production of "rich active hydrogen" reaction conditions; R10P-HS-V's high-temperature high-separation oil R10P-HS-V-MS-L is pressurized into the front R30 The obtained product enters R10 in a self-pressurized manner, and the process is more concise; R10 can use high-concentration oil-coal slurry, pre-hydrogenation section, inter-stage gas-liquid separation process, ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/06C10G1/08
CPCC10G1/002C10G1/065C10G1/083C10G1/086C10G2300/44
Inventor 何巨堂
Owner 洛阳瑞华新能源技术发展有限公司