CN107418609B - A method of processing pyrolysis furnace inner surface - Google Patents
A method of processing pyrolysis furnace inner surface Download PDFInfo
- Publication number
- CN107418609B CN107418609B CN201710526468.8A CN201710526468A CN107418609B CN 107418609 B CN107418609 B CN 107418609B CN 201710526468 A CN201710526468 A CN 201710526468A CN 107418609 B CN107418609 B CN 107418609B
- Authority
- CN
- China
- Prior art keywords
- furnace body
- pyrolysis furnace
- hydrochloric acid
- pickler
- cracking
- 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.)
- Active
Links
Classifications
-
- 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
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/004—Inhibiting of corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
-
- 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
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
-
- 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
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/40—Characteristics of the process deviating from typical ways of processing
- C10G2300/4075—Limiting deterioration of equipment
Abstract
The present invention relates to a kind of methods for handling pyrolysis furnace inner surface, it includes the following steps: 1, configuration hydrochloric acid pickler, impregnate pyrolysis furnace inner wall setting agitating device and are stirred to hydrochloric acid pickler, and add fog inhibitor in hydrochloric acid pickler；2, continuous high-pressure water is selected to rinse；3, furnace body is gradually heated；4, it is detected a flaw comprehensively using supersonic detector to cracking furnace body, and marks impaired loci；5, it to the impaired loci of label, filled up at corrosion using epoxy resin mortar, wear hole；6, using polishing machine to carrying out gyro-finishing in pyrolysis furnace；7, using volume ratio hydrofluoric acid, nitric acid, phosphoric acid mixed acid solution, by mixed acid solution be added to cracking furnace body in；8, to cracking furnace body in inject cryogenic high pressure nitrogen, by pyrolysis furnace moisture and impurity band go out furnace body；The advantages of present invention has cleaning effect good, environmental protection and energy saving, reduces cost, saves the time, and processing is thorough, extends pyrolysis furnace service life.
Description
Technical field
The invention belongs to surface treatment method technical fields, and in particular to a method of processing pyrolysis furnace inner surface.
Background technique
While continuous development with society, debirs quantity is increasing, and it is difficult that debirs carry out harmless treatment
Spend big, at high cost, common process mode will cause environmental pollution.The discarded organic matter in town and country belongs to macromolecule nytron mostly
Object is decomposed needs 200 years or more in its natural state, is polluted the environment, and occupies a large amount of arable land；With life rubbish
For rubbish, conventionally employed burning disposal mode can generate secondary pollution in gas and waste residue and with heavy metal pollution；
And need oil spout combustion-supporting during burning disposal, it is excessively high to directly result in processing cost；On the other hand, with China's economy can
Sustained and rapid development, the disposable resource supply and demand notch such as petroleum, natural gas, coal gas increase year by year, and there is an urgent need to one kind by people
At a low price, energy saving, safe, clean New-type fuel enters market；Based on the above status, people, which constantly explore, passes through organic cracking
Mode produce fuel oil, the existing cleavage method to organic waste is that organic matter is packed into as cracked in reaction kettle, is generated former
Oil and waste residue.Debirs can not only be handled, but also crude oil fuel can be prepared, turned waste into wealth；It is mentioned by cracking process
Taking fuel oil is a kind of the most economic, science, the high fuel oil extracting mode of recovery rate；Organic cracking equipment had generated
It counts for improvement project, and respectively after being used for a long time, or is eliminated or continues to use, however since debirs type is numerous
It is miscellaneous, a variety of different articles are admixed in organic waste or even contain metal or stone etc., and the prior art is often suitable only for specific composition
Debirs.Although existing cracking apparatus once passed through the development and improvement of multiple substance, there are still productions to connect so far
Continuous property is poor, seriously polluted, low efficiency and it is at high cost the defects of；Pyrolysis furnace on-line period device takes out the cracking in cracking furnace pipe and produces
Gas phase and liquid product are carried out separation appropriate by object sample, and carry out the metering and the analysis of detailed full constituent of gas-phase product,
Liquid product can isolate drippolene, pyrolysis gas oil and Pyrolysis fuel oil PFO etc. as needed, to can get pyrolysis furnace
Product distribution and useful data.But since the greasy filth in long-term use pipe, rust deposite solidification cause former pyrolysis furnace inner surface
Variation；Acid, alkaloid substance in waste material easily generate corrosion to furnace wall；The irregular removing of foreign matter in furnace causes line clogging etc.
Deng these problems all affect the normal use of pyrolysis furnace, therefore pyrolysis furnace is cleaned and handled, and make to restore in pyrolysis furnace
Material surface itself, has substantive significant, it can effectively guarantee the safety of equipment and extend the service life of equipment.
Summary of the invention
It is good that a kind of cleaning effect is provided it is an object of the invention to overcome the deficiencies in the prior art, environmental protection and energy saving reduce
Cost is saved the time, and processing thoroughly, extends the method for the processing pyrolysis furnace inner surface of pyrolysis furnace service life.
The technical scheme is that a kind of method for handling pyrolysis furnace inner surface, the method include the following steps:
Step 1: pickling: the hydrochloric acid pickler that configuration concentration is 10~45% impregnates pyrolysis furnace under the conditions of 30~45 DEG C
Inner wall 5~7 days, setting agitating device was stirred hydrochloric acid pickler, and fog inhibitor is added in hydrochloric acid pickler；
Step 2: washing: selecting 20~30 DEG C of electronic waters of temperature, and hydraulic pressure is 80~90kgf/ ㎡, continues 50~70 minutes
High pressure water rinses；
Step 3: heating: being gradually heated to 150 DEG C to furnace body and continue 30~45 minutes, be cooled to room temperature；
Step 4: flaw detection: being detected a flaw comprehensively using supersonic detector to cracking furnace body, and mark impaired loci；
Step 5: repairing: the impaired loci marked to step 4 is filled up at corrosion using epoxy resin mortar, wears hole；
Step 6: 100min/ ㎡ polishing: being not less than to gyro-finishing, operation time is carried out in pyrolysis furnace using polishing machine；
Step 7: second polishing: use volume ratio hydrofluoric acid: nitric acid: phosphoric acid is the mixed acid solution of 1:1:1, will be described mixed
It closes acid solution to be added in cracking furnace body, the time of polishing is 20-40 minutes, and the depth of chemical polishing is 100-200 μm；
Step 8: removal of impurities: to cracking furnace body in inject cryogenic high pressure nitrogen, by pyrolysis furnace moisture and impurity take out of
Furnace body；
The cryogenic high pressure nitrogen pressure of the step 8 is 100~200kgf/ ㎡, and temperature is -91~-93 DEG C, when injection
Between 35~40s.
The fog inhibitor uses ionic surfactant, the weight ratio of fog inhibitor and hydrochloric acid pickler be 1:1000~
3:1000。
The step 3 is using hot wind folder on the outside of the gas-operated thermal bath facility and cracking furnace body that cracking furnace bottom is arranged in
Layer.
V-arrangement is cut into using anodontia cutting machine in biggish hole by the step 5, using sander polishing injured surface, and
Floating ash is removed using hair dryer.
The invention has the following advantages that the present invention is to impregnate pyrolysis furnace inner wall by step 1, configuration hydrochloric acid pickler and set
Agitating device is stirred hydrochloric acid pickler, and fog inhibitor is added in hydrochloric acid pickler；2, the punching of continuous high-pressure water is selected
It washes；3, furnace body is gradually heated；4, it is detected a flaw comprehensively using supersonic detector to cracking furnace body, and marks damage
Point；5, it to the impaired loci of label, filled up at corrosion using epoxy resin mortar, wear hole；6, using polishing machine in pyrolysis furnace
Carry out gyro-finishing；7, using volume ratio hydrofluoric acid, nitric acid, phosphoric acid mixed acid solution, mixed acid solution is added to cracking
In furnace body；8, to cracking furnace body in inject cryogenic high pressure nitrogen, by pyrolysis furnace moisture and impurity band go out furnace body；This hair
Bright to have cleaning effect good, environmental protection and energy saving reduce cost, save the time, and processing thoroughly, extends the excellent of pyrolysis furnace service life
Point.
Specific embodiment
Below with reference to embodiment, the present invention is further illustrated.
Embodiment 1
A method of processing pyrolysis furnace inner surface, the method include the following steps:
Step 1: pickling: the hydrochloric acid pickler that configuration concentration is 10~45% impregnates pyrolysis furnace under the conditions of 30~45 DEG C
Inner wall 5~7 days, setting agitating device was stirred hydrochloric acid pickler, and fog inhibitor is added in hydrochloric acid pickler；
Step 2: washing: selecting 20~30 DEG C of electronic waters of temperature, and hydraulic pressure is 80~90kgf/ ㎡, continues 50~70 minutes
High pressure water rinses；
Step 3: heating: being gradually heated to 150 DEG C to furnace body and continue 30~45 minutes, be cooled to room temperature；
Step 4: flaw detection: being detected a flaw comprehensively using supersonic detector to cracking furnace body, and mark impaired loci；
Step 5: repairing: the impaired loci marked to step 4 is filled up at corrosion using epoxy resin mortar, wears hole；
Step 6: 100min/ ㎡ polishing: being not less than to gyro-finishing, operation time is carried out in pyrolysis furnace using polishing machine；
Step 7: second polishing: use volume ratio hydrofluoric acid: nitric acid: phosphoric acid is the mixed acid solution of 1:1:1, will be described mixed
It closes acid solution to be added in cracking furnace body, the time of polishing is 20-40 minutes, and the depth of chemical polishing is 100-200 μm；
Step 8: removal of impurities: to cracking furnace body in inject cryogenic high pressure nitrogen, by pyrolysis furnace moisture and impurity take out of
Furnace body.
The present invention is to impregnate pyrolysis furnace inner wall setting agitating device to chlorohydric acid pickling by step 1, configuration hydrochloric acid pickler
Liquid is stirred, and fog inhibitor is added in hydrochloric acid pickler；2, continuous high-pressure water is selected to rinse；3, furnace body gradually add
Heat；4, it is detected a flaw comprehensively using supersonic detector to cracking furnace body, and marks impaired loci；5, to the impaired loci of label,
It filled up at corrosion using epoxy resin mortar, wear hole；6, using polishing machine to carrying out gyro-finishing in pyrolysis furnace；7, using body
Product than hydrofluoric acid, nitric acid, phosphoric acid mixed acid solution, by mixed acid solution be added to cracking furnace body in；8, to pyrolysis furnace furnace
In vivo injection cryogenic high pressure nitrogen, by pyrolysis furnace moisture and impurity band go out furnace body；The present invention has cleaning effect good, environmental protection
The advantages of energy conservation reduces cost, saves the time, and processing is thorough, extends pyrolysis furnace service life.
Embodiment 2
A method of processing pyrolysis furnace inner surface, the method include the following steps:
Step 1: pickling: the hydrochloric acid pickler that configuration concentration is 10~45% impregnates pyrolysis furnace under the conditions of 30~45 DEG C
Inner wall 5~7 days, setting agitating device was stirred hydrochloric acid pickler, and fog inhibitor is added in hydrochloric acid pickler；
Step 2: washing: selecting 20~30 DEG C of electronic waters of temperature, and hydraulic pressure is 80~90kgf/ ㎡, continues 50~70 minutes
High pressure water rinses；
Step 3: heating: being gradually heated to 150 DEG C to furnace body and continue 30~45 minutes, be cooled to room temperature；
Step 4: flaw detection: being detected a flaw comprehensively using supersonic detector to cracking furnace body, and mark impaired loci；
Step 5: repairing: the impaired loci marked to step 4 is filled up at corrosion using epoxy resin mortar, wears hole；
Step 6: 100min/ ㎡ polishing: being not less than to gyro-finishing, operation time is carried out in pyrolysis furnace using polishing machine；
Step 7: second polishing: use volume ratio hydrofluoric acid: nitric acid: phosphoric acid is the mixed acid solution of 1:1:1, will be described mixed
It closes acid solution to be added in cracking furnace body, the time of polishing is 20-40 minutes, and the depth of chemical polishing is 100-200 μm；
Step 8: removal of impurities: to cracking furnace body in inject cryogenic high pressure nitrogen, by pyrolysis furnace moisture and impurity take out of
Furnace body；
The cryogenic high pressure nitrogen pressure of the step 8 is 100~200kgf/ ㎡, and temperature is -91~-93 DEG C, when injection
Between 35~40s.
The fog inhibitor uses ionic surfactant, the weight ratio of fog inhibitor and hydrochloric acid pickler be 1:1000~
3:1000。
The step 3 is using hot wind folder on the outside of the gas-operated thermal bath facility and cracking furnace body that cracking furnace bottom is arranged in
Layer.
V-arrangement is cut into using anodontia cutting machine in biggish hole by the step 5, using sander polishing injured surface, and
Floating ash is removed using hair dryer.
The present invention is to impregnate pyrolysis furnace inner wall setting agitating device to chlorohydric acid pickling by step 1, configuration hydrochloric acid pickler
Liquid is stirred, and fog inhibitor is added in hydrochloric acid pickler；2, continuous high-pressure water is selected to rinse；3, furnace body gradually add
Heat；4, it is detected a flaw comprehensively using supersonic detector to cracking furnace body, and marks impaired loci；5, to the impaired loci of label,
It filled up at corrosion using epoxy resin mortar, wear hole；6, using polishing machine to carrying out gyro-finishing in pyrolysis furnace；7, using body
Product than hydrofluoric acid, nitric acid, phosphoric acid mixed acid solution, by mixed acid solution be added to cracking furnace body in；8, to pyrolysis furnace furnace
In vivo injection cryogenic high pressure nitrogen, by pyrolysis furnace moisture and impurity band go out furnace body；The present invention has cleaning effect good, environmental protection
The advantages of energy conservation reduces cost, saves the time, and processing is thorough, extends pyrolysis furnace service life.
Claims (3)
1. a kind of method for handling pyrolysis furnace inner surface, it is characterised in that: the method includes the following steps:
Step 1: pickling: the hydrochloric acid pickler that configuration concentration is 10~45% impregnates pyrolysis furnace inner wall 5 under the conditions of 30~45 DEG C
~7 days, setting agitating device was stirred hydrochloric acid pickler, and fog inhibitor is added in hydrochloric acid pickler；
Step 2: washing: selecting 20~30 DEG C of electronic waters of temperature, and hydraulic pressure is 80~90kgf/ ㎡, continues 50~70 minutes high pressures
Water rinses；
Step 3: heating: being gradually heated to 150 DEG C to furnace body and continue 30~45 minutes, be cooled to room temperature；
Step 4: flaw detection: being detected a flaw comprehensively using supersonic detector to cracking furnace body, and mark impaired loci；
Step 5: repairing: the impaired loci marked to step 4 is filled up at corrosion using epoxy resin mortar, wears hole；
Step 6: 100min/ ㎡ polishing: being not less than to gyro-finishing, operation time is carried out in pyrolysis furnace using polishing machine；
Step 7: second polishing: use volume ratio hydrofluoric acid: nitric acid: phosphoric acid is the mixed acid solution of 1:1:1, by the mixed acid
Solution is added in cracking furnace body, and the time of polishing is 20-40 minutes, and the depth of chemical polishing is 100-200 μm；
Step 8: removal of impurities: to cracking furnace body in inject cryogenic high pressure nitrogen, by pyrolysis furnace moisture and impurity band go out furnace body；
The cryogenic high pressure nitrogen pressure of the step 8 is 100~200kgf/ ㎡, and temperature is -91~-93 DEG C, injection length 35
~40s.
2. a kind of method for handling pyrolysis furnace inner surface as described in claim 1, it is characterised in that: the fog inhibitor uses
The weight ratio of ionic surfactant, fog inhibitor and hydrochloric acid pickler is 1:1000~3:1000.
3. a kind of method for handling pyrolysis furnace inner surface as described in claim 1, it is characterised in that: the step 3 uses
Hot wind interlayer on the outside of the gas-operated thermal bath facility and cracking furnace body of cracking furnace bottom is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710526468.8A CN107418609B (en) | 2017-06-30 | 2017-06-30 | A method of processing pyrolysis furnace inner surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710526468.8A CN107418609B (en) | 2017-06-30 | 2017-06-30 | A method of processing pyrolysis furnace inner surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107418609A CN107418609A (en) | 2017-12-01 |
| CN107418609B true CN107418609B (en) | 2019-05-03 |
Family
ID=60426428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710526468.8A Active CN107418609B (en) | 2017-06-30 | 2017-06-30 | A method of processing pyrolysis furnace inner surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107418609B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110394336A (en) * | 2019-07-09 | 2019-11-01 | 上海青赛生物科技有限公司 | A kind of clean-in-place method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3108012A (en) * | 1960-07-20 | 1963-10-22 | Pipelife Corp | Method of conditioning transmission lines in situ |
| JP2004256636A (en) * | 2003-02-25 | 2004-09-16 | Maeda Seisakusho Co Ltd | Liquefaction treatment apparatus for pet-containing waste plastic |
| CN101082127A (en) * | 2007-06-21 | 2007-12-05 | 徐强 | Stainless steel surface treatment technique for stainless steel chemical boat |
| CN102489480A (en) * | 2011-12-16 | 2012-06-13 | 安徽康迪纳电力科技有限责任公司 | Chemical cleaning process of oil system of large equipment |
| CN103898525A (en) * | 2012-12-28 | 2014-07-02 | 周宜锦 | Method for removing scale of rolled steel |
| CN106607411A (en) * | 2016-12-06 | 2017-05-03 | 德阳瀚枫科技有限公司 | Cleaning device for inner wall of petroleum pipeline |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2939146B1 (en) * | 2008-11-28 | 2012-11-16 | Arkema France | USE OF ALKANE SULFONIC ACID FOR RUST REMOVAL |
-
2017
- 2017-06-30 CN CN201710526468.8A patent/CN107418609B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3108012A (en) * | 1960-07-20 | 1963-10-22 | Pipelife Corp | Method of conditioning transmission lines in situ |
| JP2004256636A (en) * | 2003-02-25 | 2004-09-16 | Maeda Seisakusho Co Ltd | Liquefaction treatment apparatus for pet-containing waste plastic |
| CN101082127A (en) * | 2007-06-21 | 2007-12-05 | 徐强 | Stainless steel surface treatment technique for stainless steel chemical boat |
| CN102489480A (en) * | 2011-12-16 | 2012-06-13 | 安徽康迪纳电力科技有限责任公司 | Chemical cleaning process of oil system of large equipment |
| CN103898525A (en) * | 2012-12-28 | 2014-07-02 | 周宜锦 | Method for removing scale of rolled steel |
| CN106607411A (en) * | 2016-12-06 | 2017-05-03 | 德阳瀚枫科技有限公司 | Cleaning device for inner wall of petroleum pipeline |
Non-Patent Citations (1)
| Title |
|---|
| 不锈钢表面处理：酸洗、钝化与抛光;林百春;《材料开发与应用》;20060630;第21卷(第3期);第36-39页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107418609A (en) | 2017-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107418609B (en) | A method of processing pyrolysis furnace inner surface | |
| CN104479662B (en) | A kind of oil field digitlization supercharging sled barium strontium descaling agent | |
| CN104529103A (en) | Oil-base mud detergent and preparation method thereof | |
| CN105154124B (en) | A kind of method using switching mode solvent to process oil-contained drilling cuttings | |
| CN101892489A (en) | Cleaning agent for flue dust scale on surface of gas heat exchanger of gas desulfurization system and preparation method thereof | |
| CN105731853A (en) | Reinforcing bar rusty retardant agent produced by vegetable waste extracts and application method of rusty retardant agent | |
| CN106929197B (en) | Oil-based cleaning agent for cleaning petrochemical equipment | |
| Zhao et al. | STUDY ON ULTRASONIC EXTRACTION OF KEROGEN FROM HUADIAN OIL SHALE BY SOLVENTS. | |
| CN101985693B (en) | Preparation method and application of metal chelate compound of cigarette end extract | |
| CN205216366U (en) | PCB brush mill copper powder recovery unit in production of high density laminated board | |
| CN100494490C (en) | Technology for solving hydrogen sulphide corrosion of pipe drilling tool and pump during oil gas exploitation | |
| Gomelya et al. | Synthesis of high-effective steel corrosion inhibitors in water-oil mixtures | |
| RU2522346C1 (en) | Device to remove isolation from pipe end outer surfaces | |
| Liping et al. | Application of non-acid block removing technology in Bohai oilfield | |
| CN105238379A (en) | Long-acting corrosion inhibitor for gas well acidification, preparation method and application method thereof | |
| CN108691520A (en) | A kind of natural gas low cost clean preparation method | |
| CN108265297B (en) | A kind of de- cobalt method of man-made polycrystalline diamond composite sheet supercritical fluid | |
| CN206799391U (en) | A kind of processing unit of oily sludge | |
| CN101302447A (en) | Method for changing benzol scrubber to scrub oil when resistance rises in winter | |
| CN108441200A (en) | Inorganic de-blocking agent and preparation method thereof | |
| CN103831596A (en) | Method for repairing old pipes for water injection well | |
| CN108977215A (en) | Tire thermal splitting system and cleavage method | |
| Liakhovich et al. | Reduction of airborne particulate matters emissions reduction associated with petroleum coke production | |
| CN206681719U (en) | A kind of Portable oil-water well acidizing formula system selector | |
| Qing et al. | Comparison of Stress Corrosion Behavior of TP110TS and P110 Steel in a Simulated Annular Environment of CO2 Injection Well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |