CN102049318A - Sulfidizing agent supply method for use in catalyst wet sulfidizing process - Google Patents
Sulfidizing agent supply method for use in catalyst wet sulfidizing process Download PDFInfo
- Publication number
- CN102049318A CN102049318A CN2009101881424A CN200910188142A CN102049318A CN 102049318 A CN102049318 A CN 102049318A CN 2009101881424 A CN2009101881424 A CN 2009101881424A CN 200910188142 A CN200910188142 A CN 200910188142A CN 102049318 A CN102049318 A CN 102049318A
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- hydrogen sulfide
- reactor
- vulcanizing agent
- catalyst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses a sulfidizing agent supply method for use in a catalyst wet sulfidizing process, which comprises the following steps of: arranging a hydrogen sulfide generator; allowing a sulfidizing agent and hydrogen gas to enter the hydrogen sulfide generator; reacting the hydrogen gas and the sulfidizing agent under the hydrogen sulfide generating conditions so as to generate a hydrogen sulfide-containing material; introducing the hydrogen sulfide-containing material and starting-up oil into a hydrogenization reactor for the sulfidizing of a hydrogenization catalyst. The method provided by the invention is best used in the sulfidizing process of the hydrogenation catalyst of liquid phase hydrogenization technology, can supply the hydrogen sulfide according to the demands of the sulfidizing process, and solves the problems of low sulfidizing agent decomposing speed, incomplete catalyst sulfidizing and the like caused by limited dissolved hydrogen amount in the catalyst sulfidizing process of the liquid phase hydrogenization technology.
Description
Technical field
The present invention relates to the vulcanizing agent supply method of catalyst vulcanization process in the supply method, particularly fixed bed liquid-phase hydrogenatin treatment process of vulcanizing agent in a kind of hydrogenation catalyst wet method sulfidation.
Background technology
In the conventional fixed bed hydrogenation treatment process process, normally, need carry out catalytic hydrogenation reaction in order to remove sulphur, nitrogen, oxygen, the metal impurities in the raw material or to reduce the feedstock oil bulk of molecule.For the reaction temperature of controlling beds with avoid the catalyst carbon deposit inactivation, adopt bigger hydrogen to oil volume ratio usually, after finishing, hydrogenation reaction must have a large amount of hydrogen more than needed.These hydrogen more than needed mix the hydrogen feed that continues as reaction with new hydrogen usually after the circulating hydrogen compressor supercharging.It is higher that but the investment of circulating hydrogen compressor accounts for the ratio of whole hydrogenation plant cost, and hydrogen heat-exchange system energy consumption is bigger.
For reducing investment outlay and reducing operating cost, refinery company has developed hydrogen has been dissolved in liquid-phase hydrogenatin treatment process in the raw material in advance both at home and abroad in recent years.A kind of hydrogenation technique of molten hydrogen is in advance disclosed as US6123835, US6428686 etc., feedstock oil and solvent or mixing diluents, the hydrogen that will react required is dissolved in the mixture of feedstock oil and solvent or diluent then, enters to carry out hydrogenation reaction in the reactor.
Hydrogenation catalyst all exists with the oxidation state of VIB and VIII family metal (as W, Mo, Co, Ni etc.) element mostly.Big quantity research and facts have proved that when metal only existed with sulphided state in the catalyst, the activity of hydrogenation catalyst just can obtain best performance, so catalyst all must vulcanize before use.Usually industrial vulcanization process commonly used has dry method sulfuration and wet method sulfuration two big classes.The dry method sulfuration is in the presence of hydrogen, directly with CS
2Or other organic sulfur compound is injected into and carries out gas phase sulfuration in the reaction system; The wet method sulfuration is to adopt the oil that goes into operation that contains sulfide to vulcanize under liquid phase or semi-liquid phase state, it again can be in two kinds of situation, a kind of is that the sulphur of sulfuration usefulness is to rely on the outside sulfide that adds to vulcanize, as mercaptan and other organic sulfur compound etc., another kind is to rely on the sulfide of petroleum distillate self to vulcanize.But no matter taking which kind of vulcanization process, its principle all is in the presence of hydrogen, the sulphur in the vulcanizing agent or the oil that goes into operation is changed into hydrogen sulfide, with reactive metal oxides reaction in hydrogen sulfide that generates and the catalyst, make it be converted into the sulphided state of metal again.
But maximum difficult point of liquid-phase hydrogenatin treatment process and not enough being are dissolved in the feedstock oil and are carried into the amounts of hydrogen of reaction system limited, in order to satisfy chemical reaction consumption hydrogen, must allow a large amount of product circulations carry hydrogen as solvent, and the catalyst vulcanization process needs hydrogen more because of the sulphided state that the reactive metal in vulcanizing agent and hydrogen reaction, the catalyst is converted into metal, therefore, only depend on and carry the needs that dissolved hydrogen is difficult to satisfy the catalyst vulcanization process.Therefore, the liquid-phase hydrogenatin treatment process is longer in the time of the sulfidation needs of catalyst, the not enough insufficient phenomenon of catalyst vulcanization that produces of the hydrogen sulfide that has caused owing to hydrogen supply rate deficiency when catalyst vulcanization has taken place simultaneously.
US4177136 discloses with elementary sulfur the hydrotreatment process that hydrogenation catalyst carries out presulfurization, with elementary sulfur catalyst is carried out presulfurization.CN93104406.5 discloses a kind of processing hydrocarbons catalyst vulcanization method, and this method adds vulcanizing agent by solvent, and all or part of a kind of component or the similar components that contains alkene and alkene cut (for example plant oil) of this solvent.These class methods all are the technical process that is applicable to a large amount of circulations of conventional hydrogen, are difficult to be suitable at the liquid-phase hydrogenatin technical process.
In the above-mentioned hydrogenation technique, when catalyst adopted the wet method sulfuration, the supply method of vulcanizing agent entered reactor then for vulcanizing agent is mixed with the oil that goes into operation, and generates metal generation vulcanization reaction in hydrogen sulfide and the hydrogenation catalyst in reactor.This method carries out existing the liquid-phase hydrogenatin system of hydrogenation deficiencies such as the slow and catalyst vulcanization of the vulcanizing agent decomposition rate that causes because of the hydrogen supply amount is limited is insufficient to adopting dissolved hydrogen.
Summary of the invention
At the problem that exists in the liquid-phase hydrogenatin treatment process catalyst vulcanization, the invention provides a kind of supply method of catalyst wet method sulfidation vulcanizing agent, can shorten the catalyst vulcanization time, improve the catalyst vulcanization effect.
The vulcanizing agent supply method of hydrogenation catalyst wet method sulfidation of the present invention comprises following content: the hydrogen sulfide generate reactor is set, vulcanizing agent and hydrogen enter the hydrogen sulfide generate reactor, hydrogen and vulcanizing agent generate the sulfide hydrogen material under the reaction condition that generates hydrogen sulfide, because hydrogen sulfide very easily is dissolved in the oil product, this sulfide hydrogen material and wet method sulfuration go into operation and introduce the vulcanizing treatment that hydrogenation reactor is used for hydrogenation catalyst after oil mixes.
In the inventive method, the hydrogen sulfide generate reactor can be provided with one or more, and the operating temperature of hydrogen sulfide generate reactor is 80-500 ℃, is preferably 150-300 ℃; Operating pressure is 0.1-18.0MPa, can enter adjustment according to the pressure of hydrogenation reactor.Hydrogen gas rate is 50-500 a times of hydrogenation reactor inner catalyst cumulative volume.
The vulcanizing agent of introducing the hydrogen sulfide generate reactor can be the material that generates hydrogen sulfide under the aforesaid operations condition with hydrogen reaction, can be solid-state vulcanizing agent, also can be liquid vulcanizing agent.Solid-state vulcanizing agent such as troilite and elemental sulfur etc., liquid vulcanizing agent are organic compounds containing sulfur.Troilite refers to can enrichment become a kind of general term of the iron sulfide mineral of industrial mineral deposit, mainly refers to pyrite, marcasite and magnetic iron ore; Elemental sulfur refers to sulphurite and reclaims sulphur that sulphurite refers to be present in natural natural sulphur, also claims rhombic sulfur; Reclaim sulphur and refer to the sulphur that from natural gas, oil, coal and other sulfur-bearing resource, obtains as by-product recovery.Liquid vulcanizing agent is concrete as carbon disulfide (CS
2), dimethyl disulphide (DMDS) etc.Vulcanizing agent can enter the hydrogen sulfide generate reactor separately, also can be mixed into the hydrogen sulfide generate reactor with hydrocarbon material.Mainly contain hydrogen sulfide and hydrogen in the sulfide hydrogen material that the hydrogen sulfide generate reactor is discharged.
The concrete operations temperature of hydrogen sulfide generate reactor generates the demand control of hydrogen sulfide in required temperature of hydrogen sulfide and the catalyst vulcanization process according to vulcanizing agent that uses and hydrogen.
The hydrogen sulfide generate reactor is provided with valve and hydrogen by-pass line, and catalyst vulcanization after finishing separates hydrogen sulfide generate reactor and hydrogenation reaction system.
The wet method sulfuration oil that goes into operation refers to the oil that goes into operation that uses in the hydrogenation catalyst wet method sulfidation be generally distillates such as straight-run naphtha, virgin kerosene or straight-run diesel oil.Wet method sulfuration goes into operation and generally need not add vulcanizing agent in the oil, also can add a small amount of vulcanizing agent as required, as adds and dissolve in the go into operation sulfur-containing compound of oil of wet method sulfuration on a small quantity.
The inventive method can be suitable for the wet method sulfidation of any hydrogenation catalyst, is most appropriate to the hydrogenation catalyst sulfidation of liquid-phase hydrogenatin technology.
A kind of catalyst vulcanization method of fixed bed liquid-phase hydrogenatin treatment process comprises the liquid-phase hydrogenatin reaction system, the liquid-phase hydrogenatin reaction system comprises liquid phase hydrogenation reactor and mixed hydrogen device, the inventive method is provided with the hydrogen sulfide generate reactor, vulcanizing agent and hydrogen enter the hydrogen sulfide generate reactor, hydrogen and vulcanizing agent generate the sulfide hydrogen material generating under the reaction condition of hydrogen sulfide, this sulfide hydrogen material and the wet method sulfuration oil that goes into operation enters liquid phase hydrogenation reactor hydrogenation catalyst is vulcanized through mixing the hydrogen device.Do not establish recycle hydrogen equipment in the liquid-phase hydrogenatin reaction system.
Hydrogenation catalyst wet method sulfidation can adopt the conditions of vulcanization of existing hydrogenation catalyst, as is generally 200～260 ℃ of following constant temperature 4～12 hours, 270～320 ℃ of following constant temperature 4～12 hours.Programming rate is generally 10～40 ℃/h.
The inventive method is by being provided with the hydrogen sulfide generate reactor, can provide hydrogen sulfide according to the needs of sulfidation, problems such as the slow and catalyst vulcanization because of hydrogen deficient vulcanizing agent decomposition rate that causes because of dissolved hydrogen tolerance is limited in the catalyst wet method sulfidation, particularly liquid-phase hydrogenatin process catalyst sulfidation is insufficient have been solved.The solubility of hydrogen sulfide in wet method sulfuration goes into operation oil is bigger, helps not having the catalyst vulcanization operation of the liquid-phase hydrogenatin technical process of recycle hydrogen system.
Description of drawings
Fig. 1 is used for a kind of process flow diagram of liquid-phase hydrogenatin process catalyst wet method sulfuration for the inventive method.
Wherein: the 1st, fresh hydrogen, the 2nd, hydrogen enters hydrogen sulfide generate reactor valve, the 3rd, hydrogen enters liquid phase and mixes hydrogen device valve, and the 4th, the hydrogen sulfide generate reactor, the 5th, produce gas in the hydrogen sulfide generate reactor and enter the mixed hydrogen device valve of liquid phase, the 6th, fresh feed oil, the 7th, the mixed hydrogen device that feedstock oil and hydrogen mix, the 8th, liquid phase hydrogenation reactor, the 9th, recycle oil circulating pump, the 10th, recycle oil, the 11st, hydrogenated products.
The specific embodiment
The inventive method proposes a kind of vulcanizing agent supply method that is suitable for liquid-phase hydrogenatin treatment process catalyst vulcanization process, before mixing the hydrogen device, liquid-phase hydrogenatin adds one or more hydrogen sulfide generate reactors, in the presence of hydrogen, vulcanizing agent is changed into hydrogen sulfide, use the hydrogen sulfide that is generated that hydrogenation catalyst is vulcanized.And in sulfidation, generate the speed of hydrogen sulfide, to satisfy in the hydrogenation catalyst sulfidation demand to hydrogen sulfide by control hydrogen sulfide generate reactor.
For ease of further specifying clear liquid-phase hydrogenatin treatment process catalyst vulcanization process of the present invention, here process of the present invention is described.As shown in Figure 1, vulcanizing agent enters the hydrogen sulfide generate reactor, enter the hydrogen sulfide generate reactor after the fresh hydrogen pressurization, under suitable temperature, hydrogen and vulcanizing agent react, the H 2 S-containing gas that generates vulcanizes the oil that goes into operation with the wet method of not adding vulcanizing agent to be mixed in mixed hydrogen device, and the saturated liquid raw material that is dissolved with hydrogen and hydrogen sulfide enters liquid phase hydrogenation reactor and carries out the catalyst vulcanization reaction, and the reactive metal oxide that is mainly on hydrogen sulfide, hydrogen and the catalyst generates metal sulfide.The liquid part of coming out from the liquid phase hydrogenation reactor bottom is mixed in the hydrogen device through circulating pump and fresh feed, and part is discharged reaction system.
Further set forth technical scheme of the present invention below in conjunction with example.
Embodiment
Diesel oil liquid-phase hydrogenatin process catalyst sulfidation: the FH-UDS Hydrobon catalyst of filling Fushun Petrochemical Research Institute development and production in the medium-sized diesel oil liquid-phase hydrogenatin device reaction device, the catalyst physico-chemical property sees Table 1.Vulcanizing agent uses C
2S can be on demand with C during operation
2S squeezes into hydrogen sulfide generate reactor, C
2S can mix with the part hydrocarbon ils and squeezes into the hydrogen sulfide generate reactor.C
2The S total amount be in the hydrogenation catalyst the theoretical requirement during the reactive metal complete cure 150%.Fresh hydrogen enters the hydrogen sulfide generate reactor after being pressurized to 4.5MPa, controls hydrogen sulfide reaction of formation actuator temperature simultaneously in 175～250 ℃ of scopes, makes hydrogen and C
2S reacts and generates hydrogen sulfide (CS
2+ 4H
2→ CH
4+ 2H
2S).
Generation comprises that the gaseous mixture of hydrogen sulfide vulcanizes the oil (use diesel oil) that goes into operation with wet method and mixes in mixed hydrogen device, the saturated liquid raw material that is dissolved with hydrogen and hydrogen sulfide enters liquid phase hydrogenation reactor and reacts, and is mainly reactive metal oxide on hydrogen sulfide and the catalyst and generates metal sulfide (MoO for example
3+ 2H
2S+H
2→ MoS
2+ 3H
2O).The liquid that contains unreacted hydrogen sulfide that comes out from liquid phase hydrogenation reactor bottom is mixed in the mixed hydrogen device of liquid phase and circulates through circulating pump and the sulfuration of the fresh wet method oil that goes into operation.The programming rate of liquid phase hydrogenation reactor is 20 ℃/h, constant temperature was 6 hours after the question response actuator temperature rose to 230 ℃, then programming rate is adjusted into 25 ℃/h, constant temperature was 6 hours after the question response actuator temperature rose to 290 ℃, continuation heats up with 25 ℃/h programming rate, swap-in feedstock oil then after the question response actuator temperature rises to 340 ℃, the adjusting process condition is stablized sample analysis catalyst desulfurizing performance after 48 hours.
The catalyst physico-chemical property sees 1, and process conditions and product analysis see Table 2.
The composition of table 1 catalyst and quality index
Table 2 process conditions
For investigating the catalyst vulcanization effect, be the initial activity evaluation that raw material carries out catalyst with normal pressure two wires distillate.Appreciation condition and feedstock oil character see Table 3.
Table 3 evaluating catalyst result
Comparative example
According to process and the condition of embodiment, just do not use the hydrogen sulfide generate reactor, vulcanizing agent to be sneaked into the wet method sulfuration oil that goes into operation directly vulcanize, each constant temperature zone all increased constant temperature time 4 hours, and sulfuration rear catalyst evaluation result sees Table 3.
Claims (10)
1. the vulcanizing agent supply method of a hydrogenation catalyst wet method sulfidation, it is characterized in that: the hydrogen sulfide generate reactor is set, vulcanizing agent and hydrogen enter the hydrogen sulfide generate reactor, hydrogen and vulcanizing agent generate the sulfide hydrogen material under the reaction condition that generates hydrogen sulfide, this sulfide hydrogen material and wet method are vulcanized the oil mixing back that goes into operation and introduced the vulcanizing treatment that hydrogenation reactor is used for hydrogenation catalyst.
2. in accordance with the method for claim 1, it is characterized in that: the hydrogen sulfide generate reactor is provided with one or more, and the operating temperature of hydrogen sulfide generate reactor is 80-500 ℃, and operating pressure is 0.1-18.0MPa.
3. it is characterized in that in accordance with the method for claim 1: the operating temperature of hydrogen sulfide generate reactor is 150-300 ℃.
4. in accordance with the method for claim 1, it is characterized in that: the vulcanizing agent of introducing the hydrogen sulfide generate reactor is the material that generates hydrogen sulfide under reaction condition with hydrogen reaction, comprises solid-state vulcanizing agent or liquid vulcanizing agent.
5. in accordance with the method for claim 4, it is characterized in that: solid-state vulcanizing agent is troilite or elemental sulfur, and liquid vulcanizing agent is an organic compounds containing sulfur.
6. in accordance with the method for claim 1, it is characterized in that: vulcanizing agent enters the hydrogen sulfide generate reactor separately, perhaps is mixed into the hydrogen sulfide generate reactor with hydrocarbon material.
7. in accordance with the method for claim 1, it is characterized in that: the hydrogen sulfide generate reactor is provided with valve and hydrogen by-pass line, and catalyst vulcanization after finishing separates hydrogen sulfide generate reactor and hydrogenation reaction system.
8. it is characterized in that in accordance with the method for claim 1: it is straight-run naphtha, virgin kerosene or straight-run diesel oil that the wet method sulfuration goes into operation oily.
9. it is characterized in that in accordance with the method for claim 1: hydrogenation catalyst is the hydrogenation catalyst that is used for liquid-phase hydrogenatin technology.
10. the catalyst vulcanization method of a fixed bed liquid-phase hydrogenatin treatment process, comprise the liquid-phase hydrogenatin reaction system, the liquid-phase hydrogenatin reaction system comprises liquid phase hydrogenation reactor and mixed hydrogen device, it is characterized in that: the hydrogen sulfide generate reactor is set, vulcanizing agent and hydrogen enter the hydrogen sulfide generate reactor, hydrogen and vulcanizing agent generate the sulfide hydrogen material generating under the reaction condition of hydrogen sulfide, this sulfide hydrogen material and the wet method sulfuration oil that goes into operation enters liquid phase hydrogenation reactor hydrogenation catalyst is vulcanized through mixing the hydrogen device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910188142 CN102049318B (en) | 2009-10-27 | 2009-10-27 | Sulfidizing agent supply method for use in catalyst wet sulfidizing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910188142 CN102049318B (en) | 2009-10-27 | 2009-10-27 | Sulfidizing agent supply method for use in catalyst wet sulfidizing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102049318A true CN102049318A (en) | 2011-05-11 |
| CN102049318B CN102049318B (en) | 2012-12-26 |
Family
ID=43954312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910188142 Active CN102049318B (en) | 2009-10-27 | 2009-10-27 | Sulfidizing agent supply method for use in catalyst wet sulfidizing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102049318B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103102931A (en) * | 2011-11-10 | 2013-05-15 | 中国石油化工股份有限公司 | Wet startup sulfuration method of hydrocracking unit |
| CN103100447A (en) * | 2011-11-10 | 2013-05-15 | 中国石油化工股份有限公司 | Startup sulfuration method of hydrogenation unit |
| CN103773454A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | Catalyst sulfuration method of liquid phase circulating hydrogenation apparatus |
| US9574141B2 (en) | 2012-11-03 | 2017-02-21 | China Petroleum & Chemical Corporation | Wet start-up method for hydrogenation unit, energy-saving hydrogenation process and hydrogenation apparatus |
| CN109718868A (en) * | 2019-02-28 | 2019-05-07 | 中国华能集团清洁能源技术研究院有限公司 | A kind of synthesis gas transformation catalyst activation system and method being adapted to multiple power compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1137788C (en) * | 2001-01-05 | 2004-02-11 | 中国石油化工股份有限公司 | Pre-sulfurizing process of hydrogenation catalyst |
-
2009
- 2009-10-27 CN CN 200910188142 patent/CN102049318B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103102931A (en) * | 2011-11-10 | 2013-05-15 | 中国石油化工股份有限公司 | Wet startup sulfuration method of hydrocracking unit |
| CN103100447A (en) * | 2011-11-10 | 2013-05-15 | 中国石油化工股份有限公司 | Startup sulfuration method of hydrogenation unit |
| CN103100447B (en) * | 2011-11-10 | 2014-10-15 | 中国石油化工股份有限公司 | Startup sulfuration method of hydrogenation unit |
| CN103102931B (en) * | 2011-11-10 | 2015-01-14 | 中国石油化工股份有限公司 | Wet startup sulfuration method of hydrocracking unit |
| CN103773454A (en) * | 2012-10-24 | 2014-05-07 | 中国石油化工股份有限公司 | Catalyst sulfuration method of liquid phase circulating hydrogenation apparatus |
| CN103773454B (en) * | 2012-10-24 | 2015-11-18 | 中国石油化工股份有限公司 | A kind of catalyst vulcanization method of liquid phase circulation hydrogenation unit |
| US9574141B2 (en) | 2012-11-03 | 2017-02-21 | China Petroleum & Chemical Corporation | Wet start-up method for hydrogenation unit, energy-saving hydrogenation process and hydrogenation apparatus |
| CN109718868A (en) * | 2019-02-28 | 2019-05-07 | 中国华能集团清洁能源技术研究院有限公司 | A kind of synthesis gas transformation catalyst activation system and method being adapted to multiple power compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102049318B (en) | 2012-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4824821A (en) | Dispersed group VIB metal sulfide catalyst promoted with Group VIII metal | |
| KR100886184B1 (en) | Highly Active Slurry Catalyst Composition | |
| US5094991A (en) | Slurry catalyst for hydroprocessing heavy and refractory oils | |
| CN102049318B (en) | Sulfidizing agent supply method for use in catalyst wet sulfidizing process | |
| EA016893B1 (en) | Hydroprocessing bulk catalyst and uses thereof | |
| US3915894A (en) | Activation of hydrotreating catalysts | |
| CN104646034B (en) | A kind of preparation method of sulfurized hydrogenation catalyst for refining | |
| CN103059910B (en) | Vulcanization method of hydrofining catalyst | |
| CN102465008A (en) | Sulfuration method of catalyst for hydrocracking technology | |
| CN100526428C (en) | Presulfiding ocr catalyst replacement batches | |
| CN104919025A (en) | Oxidative desulfurization process and system using gaseous oxidant-enhanced feed | |
| CN106701190A (en) | Process for treating inferior oil product | |
| CN103361111B (en) | A kind of gasoline hydrogenation processes the catalyst vulcanization method of technique | |
| CN102041044A (en) | On-stream method of residual oil hydrogenation process | |
| GB2072697A (en) | Hydrocracking of heavy hydrocarbon using synthesis gas | |
| CN102041045A (en) | On-stream method of residual oil hydrogenation process | |
| CN103357448B (en) | A kind of catalyst vulcanization method of kerosene hydrogenation technique | |
| CN108865253A (en) | The method of coal Direct Hydrogenation liquefaction richness production aromatic hydrocarbons | |
| CN103357449A (en) | Catalyst sulfurization method of diesel hydrotreating technique | |
| CN103773454B (en) | A kind of catalyst vulcanization method of liquid phase circulation hydrogenation unit | |
| CN1137788C (en) | Pre-sulfurizing process of hydrogenation catalyst | |
| CN103100449B (en) | Startup sulfuration method of liquid phase circulation hydrogenation unit | |
| US3642613A (en) | Black oil conversion process startup procedure | |
| CN100489065C (en) | Suspension bed hydrocracking method using disperse type catalyzer | |
| CN1087933A (en) | Sulfur suppelementary agent in use for hydrogenation processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |