CN113403105B - Start-up oil feeding method of suspension bed hydrogenation device using ethylene cracking tar as raw material - Google Patents
Start-up oil feeding method of suspension bed hydrogenation device using ethylene cracking tar as raw material Download PDFInfo
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- CN113403105B CN113403105B CN202110648561.2A CN202110648561A CN113403105B CN 113403105 B CN113403105 B CN 113403105B CN 202110648561 A CN202110648561 A CN 202110648561A CN 113403105 B CN113403105 B CN 113403105B
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- suspension bed
- ethylene cracking
- cracking tar
- bed reactor
- hydrogenation device
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/02—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing
- C10G45/14—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing with moving solid particles
- C10G45/16—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing with moving solid particles suspended in the oil, e.g. slurries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Abstract
The invention relates to the technical field of a hydrogenation feeding method of ethylene cracking tar, in particular to a start-up oil feeding method of a suspension bed hydrogenation device using ethylene cracking tar as a raw material, wherein a catalyst is not fed when the internal temperature of a suspension bed reactor is below 300 ℃, a start-up circulation flow of the ethylene cracking tar is firstly carried out on the suspension bed hydrogenation device, and the catalyst is started to be added when the inlet temperature of the suspension bed reactor is more than 300 ℃. Compared with the existing ethylene cracking tar hydrogenation method, the ethylene cracking tar hydrogenation process provided by the invention has the advantages that only the mode of feeding oil and catalyst is changed, through the change, a large amount of foam is not generated in the suspension bed reactor, the coking phenomenon is not generated in the suspension bed reactor, the device is enabled to run stably, and the subsequent suspension bed reactor starts to be heated to the reaction temperature and obtains a qualified reaction product.
Description
Technical Field
The invention relates to the technical field of ethylene cracking tar hydrogenation feeding methods, in particular to a start-up oil feeding method of a suspension bed hydrogenation device using ethylene cracking tar as a raw material.
Background
Suspension bed hydrogenation unit is processing ethylene pyrolysis tar and is opening the worker in-process, gets into suspension bed reactor after ethylene pyrolysis tar and the catalyst misce bene that has configured, after promoting hydrogen and fully backmixing ethylene pyrolysis tar and catalyst through suspension bed reactor bottom, a large amount of foams appear in suspension bed reactor inside, makes subsequent hot high pressure separator and cold high pressure separator also appear a large amount of foams, and final foam gets into the circulating hydrogen compressor, leads to suspension bed hydrogenation unit to be compelled to shut down.
Disclosure of Invention
The invention provides a start-up oil feeding method of a suspension bed hydrogenation device using ethylene cracking tar as a raw material, which overcomes the defects of the prior art and can effectively solve the problem that the suspension bed hydrogenation device is easy to stop by using a feeding method used in the conventional ethylene cracking tar hydrogenation process.
The technical scheme of the invention is realized by the following measures: a start-up oil feeding method of a suspension bed hydrogenation device using ethylene cracking tar as a raw material is carried out according to the following method: when the internal temperature of a suspension bed reactor of the suspension bed hydrogenation device is below 300 ℃, a start-up cycle flow of ethylene cracking tar is firstly carried out on the suspension bed hydrogenation device, when the internal temperature of the suspension bed reactor is higher than 300 ℃, a metal sulfide catalyst is started to be added into the suspension bed reactor, after the required metal sulfide catalyst is added, hydrogen is input into the suspension bed reactor, and then the ethylene cracking tar is hydrogenated and produced according to a conventional ethylene cracking tar hydrogenation method.
The following is further optimization or/and improvement of the technical scheme of the invention:
the mass ratio of the above metal sulfide catalyst to the ethylene cracking tar is 0.0001 to 1.
Compared with the method for hydrogenating the ethylene cracking tar disclosed in the Chinese patent application with the publication number of CN112391200A, the method for hydrogenating the ethylene cracking tar only changes the way of feeding oil and feeding a catalyst, the method for hydrogenating the ethylene cracking tar comprises the steps that the catalyst is not fed when the temperature in the suspension bed reactor is below 300 ℃, the suspension bed hydrogenation device is used for carrying out the start-up circulation flow of the ethylene cracking tar, the catalyst is added when the inlet temperature of the suspension bed reactor is higher than 300 ℃, a large amount of foam is not generated in the suspension bed reactor through the change, the coking phenomenon is not generated in the suspension bed reactor, the device is enabled to run stably, and at the moment, the suspension bed reactor is heated to the reaction temperature to obtain the qualified reaction product.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention. The various chemicals and chemicals mentioned in the present invention are all known and used in the prior art unless otherwise specified.
The invention is further described below with reference to the following examples:
example 1: the start-up oil feeding method of the suspension bed hydrogenation device taking ethylene cracking tar as the raw material is carried out according to the following method: when the internal temperature of a suspension bed reactor of the suspension bed hydrogenation device is below 300 ℃, a start-up cycle flow of ethylene cracking tar is firstly carried out on the suspension bed hydrogenation device, when the internal temperature of the suspension bed reactor is higher than 300 ℃, a metal sulfide catalyst is started to be added into the suspension bed reactor, after the required metal sulfide catalyst is added, hydrogen is input into the suspension bed reactor, and then the ethylene cracking tar is hydrogenated and produced according to a conventional ethylene cracking tar hydrogenation method.
Compared with the method for hydrogenating the ethylene cracking tar disclosed in the Chinese patent application with the publication number of CN112391200A, the method for hydrogenating the ethylene cracking tar only changes the way of feeding oil and feeding a catalyst, the method for hydrogenating the ethylene cracking tar comprises the steps that the catalyst is not fed when the temperature in the suspension bed reactor is below 300 ℃, the suspension bed hydrogenation device is used for carrying out the start-up circulation flow of the ethylene cracking tar, the catalyst is added when the inlet temperature of the suspension bed reactor is higher than 300 ℃, a large amount of foam is not generated in the suspension bed reactor through the change, the coking phenomenon is not generated in the suspension bed reactor, the device is enabled to run stably, and at the moment, the suspension bed reactor is heated to the reaction temperature to obtain the qualified reaction product.
Example 2: as optimization of example 1, the mass ratio of the metal sulfide catalyst to the ethylene cracking tar was 0.0001 to 1.
Example 3: the start-up oil feeding method of the suspension bed hydrogenation device using ethylene cracking tar as the raw material is carried out according to the following method: when the internal temperature of a suspension bed reactor of the suspension bed hydrogenation device is below 300 ℃, firstly performing a start-up cycle flow of ethylene cracking tar on the suspension bed hydrogenation device, when the internal temperature of the suspension bed reactor is higher than 300 ℃, starting to add a metal sulfide catalyst into the suspension bed reactor, wherein the mass ratio of the metal sulfide catalyst to the ethylene cracking tar is 0.0001, after the required metal sulfide catalyst is added, inputting hydrogen into the suspension bed reactor, and subsequently performing hydrogenation production of the ethylene cracking tar according to a conventional ethylene cracking tar hydrogenation method.
Example 4: the start-up oil feeding method of the suspension bed hydrogenation device using ethylene cracking tar as the raw material is carried out according to the following method: when the internal temperature of a suspension bed reactor of the suspension bed hydrogenation device is below 300 ℃, firstly performing start-up circulation flow of ethylene cracking tar on the suspension bed hydrogenation device, when the internal temperature of the suspension bed reactor is higher than 300 ℃, starting to add a metal sulfide catalyst into the suspension bed reactor, wherein the mass ratio of the metal sulfide catalyst to the ethylene cracking tar is 1.
Example 5: the start-up oil feeding method of the suspension bed hydrogenation device using ethylene cracking tar as the raw material is carried out according to the following method: when the internal temperature of a suspension bed reactor of the suspension bed hydrogenation device is below 300 ℃, firstly performing start-up circulation flow of ethylene cracking tar on the suspension bed hydrogenation device, when the internal temperature of the suspension bed reactor is higher than 300 ℃, starting to add a metal sulfide catalyst into the suspension bed reactor, wherein the mass ratio of the metal sulfide catalyst to the ethylene cracking tar is 0.001, after the required metal sulfide catalyst is added, inputting hydrogen into the suspension bed reactor, and subsequently performing hydrogenation production of the ethylene cracking tar according to a conventional ethylene cracking tar hydrogenation method.
According to the start-up oil feeding method of the embodiments 3 to 5, a large amount of foam is not generated in the suspension bed reactor, the coking phenomenon does not occur in the suspension bed reactor, and the suspension bed hydrogenation device stably operates.
The technical characteristics form an embodiment of the invention, which has strong adaptability and implementation effect, and unnecessary technical characteristics can be increased or decreased according to actual needs to meet the requirements of different situations.
Claims (1)
1. A start-up oil feeding method of a suspension bed hydrogenation device using ethylene cracking tar as a raw material is characterized by comprising the following steps: when the internal temperature of a suspension bed reactor of the suspension bed hydrogenation device is below 300 ℃, firstly performing a start-up cycle flow of ethylene cracking tar on the suspension bed hydrogenation device, when the internal temperature of the suspension bed reactor is more than 300 ℃, starting to add a metal sulfide catalyst into the suspension bed reactor, wherein the mass ratio of the metal sulfide catalyst to the ethylene cracking tar is 0.0001-1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110648561.2A CN113403105B (en) | 2021-06-10 | 2021-06-10 | Start-up oil feeding method of suspension bed hydrogenation device using ethylene cracking tar as raw material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110648561.2A CN113403105B (en) | 2021-06-10 | 2021-06-10 | Start-up oil feeding method of suspension bed hydrogenation device using ethylene cracking tar as raw material |
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| CN113403105A CN113403105A (en) | 2021-09-17 |
| CN113403105B true CN113403105B (en) | 2022-12-27 |
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| CN202110648561.2A Active CN113403105B (en) | 2021-06-10 | 2021-06-10 | Start-up oil feeding method of suspension bed hydrogenation device using ethylene cracking tar as raw material |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109554197A (en) * | 2017-09-27 | 2019-04-02 | 中国石化扬子石油化工有限公司 | A kind of residual oil hydrogenation-catalytic cracking combined method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1566372B1 (en) * | 2002-11-27 | 2018-01-10 | New Japan Chemical Co., Ltd. | Method of hydrogenation reaction |
| CN102311762B (en) * | 2010-07-07 | 2014-01-22 | 中国石油化工股份有限公司 | Suspension bed heavy oil hydrogenation process start-up method |
| FR2987842B1 (en) * | 2012-03-12 | 2015-02-27 | IFP Energies Nouvelles | OPTIMIZED PROCESS FOR THE VALORISATION OF BIO-OILS TO HYDROCARBON FUELS |
| CN108728159B (en) * | 2018-06-04 | 2020-08-25 | 上海河图工程股份有限公司 | Method for starting hydrogenation device of heavy oil slurry bed |
| CN112391200A (en) * | 2020-10-22 | 2021-02-23 | 中国科学院大连化学物理研究所 | Method for hydrogenating ethylene cracking tar |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109554197A (en) * | 2017-09-27 | 2019-04-02 | 中国石化扬子石油化工有限公司 | A kind of residual oil hydrogenation-catalytic cracking combined method |
Non-Patent Citations (1)
| Title |
|---|
| 沸腾床加氢工艺先进性的分析;齐跃等;《精细与专用化学品》;20180721;第26卷(第07期);23-26 * |
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