CN100365098C - Preparation method of asphalt for water power engineering - Google Patents

Preparation method of asphalt for water power engineering Download PDF

Info

Publication number
CN100365098C
CN100365098C CNB2004100507953A CN200410050795A CN100365098C CN 100365098 C CN100365098 C CN 100365098C CN B2004100507953 A CNB2004100507953 A CN B2004100507953A CN 200410050795 A CN200410050795 A CN 200410050795A CN 100365098 C CN100365098 C CN 100365098C
Authority
CN
China
Prior art keywords
asphalt
accordance
gas flow
obtains
oxygen
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
Application number
CNB2004100507953A
Other languages
Chinese (zh)
Other versions
CN1766037A (en
Inventor
郭皎河
曲涛
李永泰
程国香
冯敏哿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Sinopec Fushun Research Institute of Petroleum and Petrochemicals
Original Assignee
China Petroleum and Chemical Corp
Sinopec Fushun Research Institute of Petroleum and Petrochemicals
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp, Sinopec Fushun Research Institute of Petroleum and Petrochemicals filed Critical China Petroleum and Chemical Corp
Priority to CNB2004100507953A priority Critical patent/CN100365098C/en
Publication of CN1766037A publication Critical patent/CN1766037A/en
Application granted granted Critical
Publication of CN100365098C publication Critical patent/CN100365098C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Working-Up Tar And Pitch (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention provides a preparation method of asphalt for water power engineering. Base materials with the quality of proper thickness (namely penetration value), density, etc. and proper process conditions are selected by using a mild oxidation technology, and oxygen or oxygen containing gas (such as air) is led into heating fused base asphalt for carrying out proper oxidation preparation to prepare into an asphalt product for water power engineering. The present invention has simple production process, and the asphalt product for water power engineering has the performance of favorable adhesive performance, high and low temperature performance, ageing resistance, seepage prevention, etc. and is suitable for making adhesive and seepage preventing materials and building panels or core wall dams of seepage preventing engineering, such as water conservancy, water power, etc. by being made into asphalt concrete.

Description

A kind of preparation method of hydraulic asphalt
Technical field
The present invention relates to a kind of preparation method of hydraulic asphalt, relate in particular to a kind of asphalt concrete anti-seepage panel of Hydraulic and Hydro-Power Engineering and the preparation method that core-wall is used petroleum pitch.
Background technology
Hydraulic asphalt is a kind of special asphalt product as impervious material, is widely used in Hydraulic and Hydro-Power Engineerings such as dam, power station, as is used for face slab for water retaining and core-wall etc.The method of producing hydraulic asphalt at present still adopts the production method of producing road bitumen, as distillation method, oxidation style, harmonic method etc.But this is worthless on construction quality.At first, with water reservoir its unique work characteristics is arranged for the power station, because the needs of power system, upper storage reservoir and following pool water level are constantly changing, when particularly temperature is lower in the winter time, the contact temperature of panel becomes temperature by water temperature, and violent variation can take place, and is more abominable than the envrionment conditions of the bituminous concrete sloping core of bituminous pavement and conventional reservoir.Secondly, in case water conservancy, hydroelectric project normal operation input then do not have the effect repeatedly of load such as automobile, fissured self-healing ability is not as good as bituminous pavement.Dam body often has bigger sink deformation and main body mostly to be the asphalt concrete seepage prevention wall of inclined-plane or vertical stratification besides.In addition, for the huge pond buildings of investment, be self-evident in case its serious consequences of phenomenon such as crack, bulge take place.Cold cracking appearred in part hydraulic structure that built up, leak and phenomenon such as high temperature trickling.As seen, be not that any pitch all is suitable for building Hydraulic and Hydro-Power Engineering and reaches the purpose that low temperature does not ftracture, high temperature does not trickle, require hydraulic asphalt should have better ageing resistance, barrier properties, splitting resistance, temperature sensibility, flexibility and weather resistance etc. on the engineering.
In the prior art, with regard to the production of road bitumen and building asphalt, adopt oxidizing process to realize that it does not pay attention to the selection of basic material although have more, raw materials used is that needs by enterprise's upstream device decide, denseness is difficult to adjust, and no matter is to adopt oxidation or half oxidizing process, and product all is difficult to reach the performance requriements of hydraulic asphalt, perhaps oxidation depth is excessive, cause low-temperature performance to descend, perhaps oxidation depth is not enough, makes high-temperature behavior can not get due improvement.Raw materials used as CN1093394A is the heavy deasphalted oil of solvent deasphalting, and oxidizing temperature is up to 295-310 ℃, and air quantity is up to 350-420NM 3/ t, the time needs oxidation 30-32h, because oxidizing condition is very harsh, although improved high-temperature behavior, pitch has belonged to gel state, causes product fragility to increase, and the rheological property variation.Its raw material of CN1064987C only limits to vacuum residuum through propane deasphalting gained de-oiled asphalt, and index request such as the penetration degree of product, ductility, density and film heating back change of properties and hydraulic asphalt are very different.
Summary of the invention
The purpose of this invention is to provide simple, the easy to operate method for preparing hydraulic asphalt of a kind of technology.Can produce the good Hydraulic Asphalt Products of high temperature performance, ageing resistance and barrier properties with this method.
Hydraulic asphalt preparation method's of the present invention detailed process is as follows: select or the suitable asphalt stock of allotment character, relax oxide treatment then, obtain final Hydraulic Asphalt Products.
It is as follows wherein to relax the oxidation processes condition:
Liquidus temperature: 140 ℃-260 ℃, preferred 150 ℃-240 ℃.
Oxygen-containing gas flow: 0.01Nm 3/ kg.h-0.16Nm 3/ kg.h, preferred 0.05Nm 3/ kg.h-0.12Nm 3/ kg.h.
Oxidization time: 1h～10h, preferred 2h～6h.
Oxidizing tower liquid level aspect ratio: (2～10): 1, preferred (4～6): 1.
Wherein the requirement of asphalt stock character is: 15 ℃ of density of pressing GB/T8928 mensuration are＞1.000g/cm 3, best 1.005～1.10g/cm 3, 25 ℃ of penetration degrees of pressing the basic asphalt of GB/T4509 mensuration are (75～200) 1/10mm, are preferably (80～160) 1/10mm.The softening temperature of pressing the basic asphalt that GB/T4507 measures is (35～60) ℃, is preferably (38～50) ℃.
Asphalt stock can be to meet residual oil or the straight-run pitch that character requires, or obtains with the mediation mode by above-mentioned character requirement.De-oiled asphalt that obtains as residual oil, straight-run pitch and solvent deasphalting technology and/or diasphaltene wet goods are in harmonious proportion the basic asphalt that obtains, or residual oil, straight-run pitch and vacuum distillate and/or extract wet goods out and be in harmonious proportion the basic asphalt that obtains, or the de-oiled asphalt that obtains of solvent deasphalting technology and vacuum distillate and/or extract wet goods out and be in harmonious proportion the basic asphalt that obtains, or the various basic materials such as basic material that obtain of various asphalt stock and catalytically cracked oil mediation.
Equipment therefor is general various scale oxidized bitumen production equipments.
Used oxygen-containing gas comprises oxygen, air etc., preferred air.
Gas flow can be regulated in the oxidising process, and along with the carrying out of oxidising process, gas flow is by little increase: as in back 20%～90% time of oxidising process, continuously or divide and 1～10 time gas flow is increased to 105%～500% of the initial stage.
The concrete preparation process of hydraulic asphalt of the present invention is as follows:
Basic material is heated to 140 ℃-260 ℃, preferred 150 ℃-240 ℃, send into oxidizing tower (or stills for air blowing) then, meanwhile press 0.01Nm 3/ kg.h raw material-0.16Nm 3/ kg.h raw material (preferred 0.05Nm 3/ kg.h raw material-0.12Nm 3/ kg.h raw material) air feeds tower (or still) inner bottom part, keeps tower (or still) interior liquid level aspect ratio (2～10): 1, preferred (4～6): 1, the controlled oxidation time, preferred 2h～6h can obtain qualified Hydraulic Asphalt Products at 1h～10h.
Method of the present invention compared with the prior art, widened the source of oxidation raw material, adaptive surface is wider, and be that penetration degree and softening temperature and density have specific requirement to the denseness of raw material, oxidizing condition relaxes more, like this, make and both kept more plasticizing component in the oxygenated products, thereby has better low-temperature performance, suitably increased the good bituminous matter of temperature sensibility and high-temperature behavior again, make pitch have the ability of better resistance to deformation, specifically, the penetration degree of Hydraulic Asphalt Products suitable (60-100 1/10mm), low temperature (15 ℃) ductility is big, and (the film heating is preceding greater than 150cm, film heating back is greater than 100cm), density big (greater than 1.01), film heating back penetration ratio height (greater than 70%) and softening temperature rising numerical value little (less than 5 ℃).The hydraulic asphalt that the present invention produces is different from existing road pitch and building asphalt, owing to possessed good high temperature performance and ageing resistance and temperature sensibility, barrier properties and water tolerance, built bituminous concrete panel and core wall dam so be suitable for Hydraulic and Hydro-Power Engineering.Difference at the material system change of properties of asphalt stock in oxidising process, be the oxidation initial stage to have an inductive phase, speed of response is slow, speed of response is accelerated afterwards, asphaltic nature changes very fast, by being adjusted at the gas flow in the oxidising process, then can reduce the utilization ratio of oxygen in oxidation initial stage process cost, the raising air, the character that makes Hydraulic Asphalt Products on the whole is homogeneous more, the performance of hydraulic asphalt, particularly high temperature and low temperature extension property are more outstanding, and this can improve the whole barrier performance of Hydraulic Asphalt Products in long-time use.
Embodiment
Below will the present invention will be further described by embodiment.The percentage composition that relates in the truth example is a weight percentage.
Embodiment 1
Used basic material is a straight-run pitch, and its penetration degree is 105 1/10mm, and softening temperature is 44.3 ℃, and density is 1.011g/cm 3500g pack in stills for air blowing after being heated fusion, and at this moment, the liquid level aspect ratio is 4: 1, at 200 ℃ of temperature, air flow quantity 0.04m 3Oxidation 5.5h finishes under/the h, emits sample and tests bituminous character (the results are shown in Table 1).
Embodiment 2
Used basic material is a vacuum residuum, and its penetration degree is 162 1/10mm, and softening temperature is 39.5 ℃, and density is 1.008g/cm 3600g pack in stills for air blowing after being heated fusion, and at this moment, the liquid level aspect ratio is 6: 1, at 240 ℃ of temperature, air flow quantity 0.03m 3Oxidation 1h under the/h, air flow quantity 0.048m 3Oxidation 2h under the/h is at air flow quantity 0.06m 3Oxidation 4h finishes under/the h, emits sample and tests bituminous character (the results are shown in Table 1).
Embodiment 3
Used basic material is that (penetration degree is 78 1/10mm to the propane de-oiled asphalt, and softening temperature is 46.1 ℃, and density is 1.018g/cm 3) be that blending in 92: 8 gets with extracting oil (fragrance divides 43.66%, colloid 12.96%, bituminous matter 0.14% for wax content 0.25%, saturated branch 43.24%) weight ratio out, its penetration degree is 120 1/10mm, and softening temperature is 41.7 ℃, and density is 1.16g/cm 3550g pack in stills for air blowing after being heated fusion, and at this moment, the liquid level aspect ratio is 5: 1, at 180 ℃ of temperature, air flow quantity 0.033m 3Oxidation 3.5h finishes under/the h, emits sample and tests bituminous character (the results are shown in Table 1).
Embodiment 4
Used basic material is that (penetration degree is 71 1/10mm to straight-run pitch, and softening temperature is 48.1 ℃, and density is 1.021g/cm 3) (penetration degree is 121 1/10mm, and softening temperature is 42.9 ℃, and density is 1.008g/cm with the propane de-oiled asphalt 3) weight ratio be 40: 60 the blending get, its penetration degree is 95 1/10mm, softening temperature is 44.8 ℃, density is 1.017g/cm 3500g pack in stills for air blowing after being heated fusion, and at this moment, the liquid level aspect ratio is 4: 1, at 220 ℃ of temperature, air flow quantity 0.06m 3Oxidation 2.5h finishes under/the h, emits sample and tests bituminous character (the results are shown in Table 1).
Embodiment 5
Used basic material is that (penetration degree is 711/10mm to straight-run pitch, and softening temperature is 48.1 ℃, and density is 1.021g/cm 3) (penetration degree is 88 1/10mm, and softening temperature is 46.0 ℃, and density is 1.013g/cm with the propane de-oiled asphalt 3) weight ratio be 50: 50 the blending get, its penetration degree is 82 1/10mm, softening temperature is 47.2 ℃, density is 1.016g/cm 3450g pack in stills for air blowing after being heated fusion, and at this moment, the liquid level aspect ratio is 3.5: 1, at 160 ℃ of temperature, air flow quantity 0.018m 3Oxidation 3h finishes under/the h, emits sample and tests bituminous character (the results are shown in Table 1).
The embodiment hydraulic asphalt not only has good use properties in the table 1, and every character has reached " the asphalt quality technical requirements of Three Gorges hydroelectric project Mao Ping small stream protection earth rockfill dam bituminous concrete ".
Table 1 embodiment Hydraulic Asphalt Products character
Embodiment Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Technical indicator *
Raw material penetration degree/10 -1Mm oxidizing temperature/℃ air flow quantity/m 3.(kg.h) -1Oxidization time/h penetration degree (25)/10 -1Mm softening temperature/℃ ductility (15 ℃)/cm density (15 ℃)/g.cm -3Flash-point/℃ wax content (distillation method), the heating of % film (163 ℃, 5h) penetration ratio, % ductility (15 ℃)/cm brittle point/℃ softening temperature rising/℃ 105 200 0.08 4 74 48.4 ＞150 1.018 ＞260 1.88 71.6 116 -9.6 2.9 162 240 0.05-0.10 7 95 46.5 ＞150 1.011 ＞260 1.92 69.5 ＞150 -11.4 3.5 120 180 0.06 3.5 73 47.8 ＞150 1.012 ＞260 2.00 72.6 139 -10.1 4.2 95 220 0.12 2.5 72 48.5 ＞150 1.019 ＞260 1.65 75.0 130 -11.8 3.8 82 160 0.04 3 68 49.0 ＞150 1.016 ＞260 1.75 73.5 ＞150 -11.0 2.4 - - - - 60-80 46-54 ＞150 1.01-1.05 ＞230 ＜2.0 ＞70 ＞100 ＜-8 ＜5
*Be " the asphalt quality technical requirements of Three Gorges hydroelectric project Mao Ping small stream protection earth rockfill dam bituminous concrete ".

Claims (10)

1. the preparation method of a hydraulic asphalt, process is as follows: select or the suitable asphalt stock of allotment character, relax oxide treatment then, obtain final Hydraulic Asphalt Products;
It is as follows wherein to relax the oxidation processes condition:
Liquidus temperature: 140 ℃-260 ℃
Oxygen-containing gas flow: 0.01Nm 3/ kg.h-0.16Nm 3/ kg.h
Oxidization time: 1h～10h
Oxidizing tower liquid level aspect ratio: 2～10: 1;
Wherein the requirement of asphalt stock character is: 15 ℃ of density are＞1.000g/cm 3, 25 ℃ of penetration degrees are 75～200 1/10mm, softening temperature is 35～60 ℃.
2. in accordance with the method for claim 1, it is characterized in that described mitigation oxidation processes condition is as follows:
Liquidus temperature: 150 ℃-240 ℃
Oxygen-containing gas flow: 0.05Nm 3/ kg.h-0.12Nm 3/ kg.h
Oxidization time: 2h～6h
Oxidizing tower liquid level aspect ratio: 4～6: 1.
3. in accordance with the method for claim 1,15 ℃ of density that it is characterized in that described asphalt stock are 1.005～1.10g/cm 3
4. in accordance with the method for claim 1,25 ℃ of penetration degrees that it is characterized in that described asphalt stock are 80～160 1/10mm.
5. in accordance with the method for claim 1, the softening temperature that it is characterized in that described asphalt stock is 38～50 ℃.
6. according to claim 1 or 3 described methods, it is characterized in that described asphalt stock is to meet residual oil or the straight-run pitch that character requires, or obtain with the mediation mode by above-mentioned character requirement.
7. in accordance with the method for claim 6, it is characterized in that de-oiled asphalt that described mediation mode comprises that residual oil, straight-run pitch and solvent deasphalting technology obtain and/or deasphalted oil are in harmonious proportion the basic asphalt that obtains, or residual oil, straight-run pitch and vacuum distillate and/or the oily basic asphalt that obtains that is in harmonious proportion of extraction, or the de-oiled asphalt that obtains of solvent deasphalting technology and vacuum distillate and/or extract oil out and be in harmonious proportion the basic asphalt that obtains, or the basic material that obtains of various asphalt stock and catalytically cracked oil mediation.
8. in accordance with the method for claim 1, it is characterized in that described oxygen-containing gas is oxygen or air.
9. in accordance with the method for claim 1, it is characterized in that gas flow is along with the carrying out of oxidising process in oxidising process, gas flow is regulated by little increase.
10. in accordance with the method for claim 9, it is characterized in that described gas flow was adjusted in back 20%～90% time of oxidising process, continuously or divide and 1～10 time gas flow is increased to 105%～500% of the initial stage.
CNB2004100507953A 2004-10-29 2004-10-29 Preparation method of asphalt for water power engineering Active CN100365098C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2004100507953A CN100365098C (en) 2004-10-29 2004-10-29 Preparation method of asphalt for water power engineering

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2004100507953A CN100365098C (en) 2004-10-29 2004-10-29 Preparation method of asphalt for water power engineering

Publications (2)

Publication Number Publication Date
CN1766037A CN1766037A (en) 2006-05-03
CN100365098C true CN100365098C (en) 2008-01-30

Family

ID=36742155

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2004100507953A Active CN100365098C (en) 2004-10-29 2004-10-29 Preparation method of asphalt for water power engineering

Country Status (1)

Country Link
CN (1) CN100365098C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106811230A (en) * 2017-04-07 2017-06-09 中国石油化工股份有限公司 The method that petroleum de-oiled asphalt prepares fuel oil raw material
CN112442280B (en) * 2019-08-27 2023-03-31 中国石油化工股份有限公司 Road asphalt and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078701A2 (en) * 1981-11-06 1983-05-11 Exxon Research And Engineering Company Process for preparing modified asphalts
US5306415A (en) * 1991-07-29 1994-04-26 Clemson University Oxygenated pitch and processing same
CN1103657A (en) * 1994-08-23 1995-06-14 中国石化大庆石油化工总厂炼油厂 Production process of petroleum bitumen oxidizing oil slurry from catalytically cracked heavy oil
CN1212990A (en) * 1997-09-29 1999-04-07 中国石油化工总公司 Method for producing high-viscosity asphalt
CN1415699A (en) * 2001-10-30 2003-05-07 中国石油化工股份有限公司 Method for oxidizing asphaltum

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078701A2 (en) * 1981-11-06 1983-05-11 Exxon Research And Engineering Company Process for preparing modified asphalts
US5306415A (en) * 1991-07-29 1994-04-26 Clemson University Oxygenated pitch and processing same
CN1103657A (en) * 1994-08-23 1995-06-14 中国石化大庆石油化工总厂炼油厂 Production process of petroleum bitumen oxidizing oil slurry from catalytically cracked heavy oil
CN1212990A (en) * 1997-09-29 1999-04-07 中国石油化工总公司 Method for producing high-viscosity asphalt
CN1415699A (en) * 2001-10-30 2003-05-07 中国石油化工股份有限公司 Method for oxidizing asphaltum

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
利用进口原油生产水工沥青的研究. 曲涛.石油沥青，第16卷第2期. 2002 *

Also Published As

Publication number Publication date
CN1766037A (en) 2006-05-03

Similar Documents

Publication Publication Date Title
CN102464989B (en) Preparation method of high softening point asphalt
CN105887608B (en) Water Permeability Multi-purpose Concrete and component for sponge urban construction
CN105255206A (en) Warm-mixed recycled asphalt and preparation method thereof
CN104263395A (en) Coking process containing low-rank coal
CN107188460B (en) A kind of preparation method mixing the basalt fibre OGFC-13 asphalt that is chopped
CN101870862A (en) Low-density high-strength leak-resistant slurry method for sealing leakage producing formation
CN105647166B (en) A kind of phase change energy-storage type is bitumen polyurethane hard foamed and preparation method thereof
CN100365098C (en) Preparation method of asphalt for water power engineering
EP2350200A1 (en) Bituminous mixtures with a high polymer content
CN101445659A (en) Modified asphalt applying lake asphalt and preparation method thereof
CN103045281A (en) Method for increasing content of asphaltene in low-asphaltene raw materials
CN102224196B (en) Asphalt concrete modifier
CN104711014A (en) Hard asphalt 20# and preparation method thereof
CN105273421A (en) Catalytic slurry oil utilization method
CN102718439B (en) Method for road engineering by mixing plant asphalt and petroleum asphalt
CN104629390A (en) Manufacturing process for forming cold-resistant anti-freeze low-temperature asphalt liquid with stable chemical network
CN101386794A (en) Transformer oil base oil and preparation method and applications thereof
CN104356655A (en) Road prime coat oil and preparation method thereof
CN108822885A (en) A kind of composite extractant and preparation method thereof for Fischer-Tropsch oil oxide removal
CN101644095B (en) Styrene butadiene styrene (SBS) modified bituminous waterproof sheet material and preparation technology thereof
CN105936749A (en) Method for preparing colored asphalt cementing materials from catalytic cracking slurry oil
CN103881163A (en) Multi-monomer high-molecular polymer synthesis road asphalt modifier as well as preparation method and application thereof
CN107759139A (en) Highly anti-fatigue cracking resistance water-permeating pitch mixed material and preparation method thereof
CN105647165B (en) It is a kind of bitumen polyurethane hard foamed and preparation method thereof
CN209099712U (en) A kind of toilet basal plane waterproof construction of durable environmental protection

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