CN108531206B - High-evolution pyrobitumen high-temperature circulating dissolving device and method - Google Patents
High-evolution pyrobitumen high-temperature circulating dissolving device and method Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
- C10C3/08—Working-up pitch, asphalt, bitumen by selective extraction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0288—Applications, solvents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0292—Treatment of the solvent
- B01D11/0296—Condensation of solvent vapours
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C3/00—Working-up pitch, asphalt, bitumen
- C10C3/002—Working-up pitch, asphalt, bitumen by thermal means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D2011/007—Extraction using a solvent in the gas phase
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Abstract
The invention provides a high-evolution pyrobitumen high-temperature circulating dissolving device and method, and relates to the technical field of bitumen dissolving. The utility model provides a high-temperature circulation dissolving device of pyrobitumen of high evolution, includes dissolvent, is used for heater, extractor and the condenser for heating the dissolvent, and the dissolvent sets up in the top of heater, and the one end of extractor is connected with the opening of dissolvent, and the other end is connected with the condenser. The device has simple structure and good effect of circularly dissolving the focusing asphalt. A high-temperature circulating dissolving method for high-evolution pyrobitumen comprises the following steps: soaking pyrobitumen in a first reagent at the temperature of 0-5 ℃. And soaking the pyrobitumen subjected to the first soaking in the second reagent again at 15-25 ℃. And circularly dissolving the pitch subjected to the second soaking by adopting the high-evolution pitch high-temperature circular dissolving device. The method has the advantages of safe and easy application, feasible operation process, capability of circularly dissolving, cost reduction and excellent dissolving effect.
Description
Technical Field
The invention relates to the technical field of asphalt dissolution, in particular to a high-evolution pyroasphalt high-temperature circulating dissolving device and method.
Background
Solid bitumen is found in many reservoirs in hydrocarbon-bearing basins of the world. Solid asphalt has long been a focus of petroleum workers. The solid asphalt has the characteristic of non-flowability, is filled in pores to block pore channels, greatly damages reservoir space, and reduces the porosity and permeability of the reservoir, thereby reducing the productivity of the oil-gas well. Meanwhile, the response characteristics of the solid asphalt and the logging of the oil-gas reservoir are extremely similar, the logging resistivity is increased, and the asphalt is easily mistaken for oil gas during logging interpretation, so that the effective porosity and the oil saturation of the logging interpretation are higher, and the selection of the effective oil (gas) reservoir of the oil field is seriously influenced. Therefore, the influence of the solid asphalt, the physical property of the reservoir and the logging parameters is quantitatively evaluated through the measurement of the porosity, the permeability, the resistivity and the acoustic wave time difference before and after the asphalt-containing sample is dissolved, and the method has important guiding significance for the exploration and development of the oil field.
The influence of the solid asphalt on the reservoir pore permeability, the pore structure and the logging response parameters is quantitatively evaluated, and the key technology is the full dissolution of the asphalt. The low-evolution reservoir asphalt can achieve a better dissolving effect by being soaked in chloroform at normal temperature. The high-evolvement pyrobitumen has high carbonization degree and compact structure, and is difficult to achieve ideal effect by adopting the dissolution of a common reagent under the normal temperature condition. Previous studies have focused primarily on the dissolution of low-evolving bitumen, with relatively few studies on dissolution of high-evolving pyrobitumen. Therefore, the high-temperature circulating dissolving method for the high-evolution tar pitch is established, and has important guiding significance for effective geological reserve calculation and effective test oil (gas) layer selection of the oil field.
Disclosure of Invention
The invention aims to provide a high-temperature circulating dissolving device for pyrobitumen, which has a simple structure and a good circulating dissolving effect on pyrobitumen.
The invention also aims to provide a high-temperature circulating dissolving method for high-evolution pyrobitumen, which has the advantages of safe and easy technology, feasible operation process, capability of circulating dissolution, cost reduction and excellent dissolving effect.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the utility model provides a high-temperature circulation dissolving device of pyrobitumen of high evolution, includes dissolvent, is used for heater, extractor and the condenser for heating the dissolvent, and the dissolvent sets up in the top of heater, and the one end of extractor is connected with the opening of dissolvent, and the other end is connected with the condenser.
A high-temperature circulating dissolving method for high-evolution pyrobitumen comprises the following steps:
soaking pyrobitumen in a first reagent at the temperature of 0-5 ℃.
And soaking the pyrobitumen subjected to the first soaking in the second reagent again at 15-25 ℃.
And circularly dissolving the pitch subjected to the second soaking by adopting the high-evolution pitch high-temperature circular dissolving device.
The high-temperature circulating dissolving device and method for the high-evolution pyrobitumen have the advantages that:
the carbon disulfide, the trichloromethane, the N, N-dimethylformamide and the N-methyl-2-pyrrolidone mixed solvent are adopted to dissolve the pyrobitumen at low temperature, normal temperature and high temperature respectively, the noncovalent bond association structure of organic matters is destroyed by the solvent, the pyrobitumen is well dissolved, and the dissolving effect is excellent. The method has the advantages of safe and easy application technology, feasible operation process, capability of circularly dissolving, cost reduction, making up for the vacancy of the high-evolution pyrobitumen dissolving method, laying a research foundation for the subsequent development of the influence of the pyrobitumen on the physical properties of the reservoir stratum and logging parameters and logging identification, and having important significance for the production development of oil fields and scientific research and customs. The preparation method adopts a high-temperature circulating dissolving device of the high-evolution pyrobitumen, the device has a simple structure, and the circulating dissolving of the pyrobitumen under the high-temperature condition can be realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
FIG. 1 is a schematic structural diagram of a high-temperature circulating dissolving device for pyrobitumen in high evolution provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of the device for soaking provided by the invention.
Icon: 100-high-evolution pyrobitumen high-temperature circulating dissolving device; 110-a dissolver; 120-a heater; 130-an extractor; 140-condenser.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially. Some embodiments of the invention are described in detail below with reference to the accompanying drawings. In the present invention, conventional devices, apparatuses, components, etc. are either commercially available or self-made according to the present disclosure. In the present invention, some conventional operations and apparatuses, devices, components are omitted or only briefly described in order to highlight the importance of the present invention.
The following describes a high-temperature circulating dissolving device and method for high-evolution pyrobitumen in an embodiment of the present invention.
Example 1
Referring to fig. 1, the present embodiment provides a high-temperature circulating dissolving apparatus 100 for high-evolution pyrobitumen, which includes a dissolver 110, a heater 120, an extractor 130, and a condenser 140. The dissolver 110 is disposed above the heater 120, and the extractor 130 has one end connected to an opening of the dissolver 110 and the other end connected to the condenser 140.
The dissolver 110 is used for placing the dissolving agent, and in the present embodiment, the dissolver 110 is a conical flask. In other embodiments of the present invention, the dissolver 110 may be a beaker or other instrument, which is not limited by the present invention. The heater 120 is used for heating the dissolving reagent in the dissolver 110, and in the present embodiment, the heater 120 is a heating furnace, and the dissolver 110 is placed in the heating furnace.
During the dissolution process, the sample containing bitumen is placed in the extractor 130 and the heater 120 heats the dissolution reagent, causing the dissolution reagent to evaporate, dissolving the bitumen in the sample containing bitumen. Along with the volatilization of the dissolving reagent vapor, the dissolving reagent vapor is condensed in the condenser 140 and reflows to the extractor 130 again, so that the cyclic dissolution can be carried out, and the cost is reduced.
In order to ensure safety, in this embodiment, the high-temperature circulating dissolving device 100 for high-evolution pyrobitumen further comprises a ventilation device (not shown) to prevent the volatile dissolving reagent from harming personnel. In this embodiment, the fume apparatus is a fume hood, i.e., dissolution is carried out in a fume hood.
The invention also provides a high-temperature circulating dissolving method of the high-evolution pyrobitumen, which comprises the following steps:
and soaking the pyrobitumen or the pyrobitumen-containing core sample for the first time at a low temperature of 0-5 ℃. Preferably, the reagent for the first soaking is carbon disulfide, and the reagent is soaked in the carbon disulfide for 22-26 hours. Since carbon disulfide is toxic and highly volatile, the container holding the first reagent is sealed and placed in a fume hood during the soaking process.
Referring to fig. 2, the present invention designs a set of apparatus for soaking according to the requirement, including a condensing apparatus, a dissolver, and a ventilating apparatus. The condensing device is internally provided with condensed water, the temperature of the condensed water is controlled within a required temperature range through a temperature control system of the condensing device, the dissolver is internally provided with a dissolving reagent and a sample to be dissolved, and the dissolver is arranged in the condensing device, so that the dissolving reagent in the dissolver is positioned below the liquid level of the condensed water for dissolving.
In actual operation, the pyrobitumen or the pyrobitumen-containing core sample is placed in a dissolver, the first reagent is poured into the dissolver, and when the temperature in the condensing device reaches the required temperature, the dissolver is placed in the condensing device for dissolving.
And after the first soaking, soaking the pyrobitumen or the pyrobitumen-containing core sample which is subjected to the first soaking in the second reagent again at the normal temperature of 15-25 ℃. Preferably, the second reagent is chloroform, and the second reagent is soaked in the chloroform reagent for 22-26 hours. To improve safety, the container containing the second reagent is sealed and placed in a fume hood during the soaking process.
After being soaked and dissolved at low temperature and normal temperature, the pyrobitumen or the core sample containing the pyrobitumen is subjected to high-temperature circulating dissolution. Preferably, the high-temperature circulating dissolving device for the pyrobitumen provided in the embodiment 1 is adopted to carry out high-temperature circulating dissolving.
Specifically, the pyrobitumen or a core sample containing the pyrobitumen after the secondary soaking is placed in an extractor, a third solvent for dissolving is filled in a dissolver, condensed water is filled in a condenser for reflux, and a heater is used for heating, so that the pyrobitumen or the core sample containing the pyrobitumen is circularly dissolved at the temperature of 180-220 ℃.
Preferably, the third solvent is a mixed solvent of N, N-dimethylformamide and N-methyl-2-pyrrolidone, and when the volume ratio of the N, N-dimethylformamide to the N-methyl-2-pyrrolidone is 1: 1-2, the dissolving effect is good, and the cost is low. Further, in a preferred embodiment of the invention, the pyrobitumen or the pyrobitumen-containing core sample is circularly dissolved for 22-26 hours under the action of the third solvent. The main component of the pyrobitumen is polycyclic aromatic hydrocarbon, and the polycyclic aromatic hydrocarbon can be extracted from the pyrobitumen through pi-pi interaction because pi bonds exist in N, N-dimethylformamide molecules and N-methyl-2-pyrrolidone molecules, so that the pyrobitumen has a good dissolving effect.
Pyrobitumen has a structure comprising a chemically cross-linked structure bound in the form of covalent bonds and a non-covalent bond association structure such as hydrogen bonds, ionic bonds, pi-pi interactions and charge transfer effects. The high-temperature circulating dissolving method of the high-evolution pyrobitumen provided by the invention utilizes low-temperature and normal-temperature soaking dissolution and high-temperature circulating dissolution, destroys the non-covalent bond association structure of the organic matter through the solvent, and dissolves out the component with smaller relative molecular mass, wherein the physical processes of swelling of the organic matter, dissolving of the soluble organic component, diffusion of the dissolved component and the like are included. Compared with the prior art, the method has stronger solubility to the asphalt and better dissolution effect.
The features and properties of the present invention are described in further detail below with reference to examples.
Example 2
The embodiment provides a high-temperature circulating dissolving method for high-evolution pyrobitumen, which comprises the following steps:
and (3) placing the core sample containing the pyrobitumen into a conical flask, and adding a carbon disulfide reagent to immerse the core sample containing the pyrobitumen. Soaking at 0 deg.C for 26 h.
And taking out the core sample containing the pyrobitumen after soaking, placing the core sample into a second conical flask, and adding a trichloromethane reagent into the conical flask to immerse the core sample containing the pyrobitumen. Soaking at 15 deg.C for 24 h.
The high-temperature circulating dissolving device for the highly evolved pyrobitumen provided in example 1 was used to place the twice soaked pyrobitumen-containing core sample in an extractor, and a mixed solvent of N, N-dimethylformamide and N-methyl-2-pyrrolidone was placed in the extractor, wherein the volume ratio of N, N-dimethylformamide to N-methyl-2-pyrrolidone was 1:1. And the condenser is filled with condensed water for reflux, and the heater is used for heating, so that the pyrobitumen-containing core sample is circularly dissolved for 24 hours at the temperature of 180 ℃.
Example 3
The embodiment provides a high-temperature circulating dissolving method for high-evolution pyrobitumen, which comprises the following steps:
and (3) placing the core sample containing the pyrobitumen into a conical flask, and adding a carbon disulfide reagent to immerse the core sample containing the pyrobitumen. Soaking at 3 deg.C for 23 h.
And taking out the core sample containing the pyrobitumen after soaking, placing the core sample into a second conical flask, and adding a trichloromethane reagent into the conical flask to immerse the core sample containing the pyrobitumen. Soaking at 18 deg.C for 23 h.
The high-temperature circulating dissolving device for the highly evolved pyrobitumen provided in example 1 was used to place the twice soaked pyrobitumen-containing core sample in an extractor, and a mixed solvent of N, N-dimethylformamide and N-methyl-2-pyrrolidone was placed in the extractor, wherein the volume ratio of N, N-dimethylformamide to N-methyl-2-pyrrolidone was 1: 2. And the condenser is filled with condensed water for reflux, and the heater is used for heating, so that the pyrobitumen-containing core sample is circularly dissolved for 24 hours at the temperature of 190 ℃.
Example 4
The embodiment provides a high-temperature circulating dissolving method for high-evolution pyrobitumen, which comprises the following steps:
and (3) placing the core sample containing the pyrobitumen into a conical flask, and adding a carbon disulfide reagent to immerse the core sample containing the pyrobitumen. Soaking at 0 deg.C for 26 h.
And taking out the core sample containing the pyrobitumen after soaking, placing the core sample into a second conical flask, and adding a trichloromethane reagent into the conical flask to immerse the core sample containing the pyrobitumen. Soaking at 25 deg.C for 23 h.
The high-temperature circulating dissolving device for the highly evolved pyrobitumen provided in example 1 was used to place the twice soaked pyrobitumen-containing core sample in an extractor, and a mixed solvent of N, N-dimethylformamide and N-methyl-2-pyrrolidone was placed in the extractor, wherein the volume ratio of N, N-dimethylformamide to N-methyl-2-pyrrolidone was 1: 1.5. And (3) the condenser is filled with condensed water for reflux, and the heater is used for heating, so that the pyrobitumen-containing core sample is circularly dissolved for 25 hours at the temperature of 210 ℃.
Example 5
The embodiment provides a high-temperature circulating dissolving method for high-evolution pyrobitumen, which comprises the following steps:
and (3) placing the core sample containing the pyrobitumen into a conical flask, and adding a carbon disulfide reagent to immerse the core sample containing the pyrobitumen. Soaking at 5 deg.C for 24 h.
And taking out the core sample containing the pyrobitumen after soaking, placing the core sample into a second conical flask, and adding a trichloromethane reagent into the conical flask to immerse the core sample containing the pyrobitumen. Soaking at 25 deg.C for 24 h.
The high-temperature circulating dissolving device for the highly evolved pyrobitumen provided in example 1 was used to place the twice soaked pyrobitumen-containing core sample in an extractor, and a mixed solvent of N, N-dimethylformamide and N-methyl-2-pyrrolidone was placed in the extractor, wherein the volume ratio of N, N-dimethylformamide to N-methyl-2-pyrrolidone was 1: 2. And the condenser is filled with condensed water for reflux, and the heater is used for heating, so that the pyrobitumen-containing core sample is circularly dissolved for 24 hours at the temperature of 200 ℃.
Comparative example 1
The comparative example provides a high-temperature circulating dissolving method for high-evolution pyrobitumen, which comprises the following steps:
and (3) placing the core sample containing the pyrobitumen into a conical flask, and adding a carbon disulfide reagent to immerse the core sample containing the pyrobitumen. Soaking at 5 deg.C for 24 h.
Comparative example 2
The comparative example provides a high-temperature circulating dissolving method for high-evolution pyrobitumen, which comprises the following steps:
and (3) placing the core sample containing the pyrobitumen into a conical flask, and adding a carbon disulfide reagent to immerse the core sample containing the pyrobitumen. Soaking at 5 deg.C for 24 h.
And taking out the core sample containing the pyrobitumen after soaking, placing the core sample into a second conical flask, and adding a trichloromethane reagent into the conical flask to immerse the core sample containing the pyrobitumen. Soaking at 20 deg.C for 24 h.
Comparative example 3
The comparative example provides a high-temperature circulating dissolving method for high-evolution pyrobitumen, which comprises the following steps:
and soaking and dissolving the core sample containing the pyrobitumen for 24 hours at normal temperature by using petroleum ether.
Selecting the core samples containing the pyrobitumen provided in the examples 2-5 and the comparative examples 1-3, respectively measuring the mass of the core samples before and after dissolution, and calculating the dissolution rate of the pyrobitumen. The dissolution rate is (core weight before dissolution-core weight after dissolution)/core weight before dissolution. The results are given in the following table:
TABLE 1 dissolution results
As can be seen from table 1, the high-temperature cyclic dissolving method for highly evolved pyrobitumen provided in examples 2 to 5 has better effect than the dissolving method provided in comparative examples 1 to 3, which shows that the pyrobitumen is dissolved at low temperature, normal temperature and high temperature by using the mixed solvent of carbon disulfide, chloroform, N-dimethylformamide and N-methyl-2-pyrrolidone, and the dissolving effect is better and the dissolving rate is higher than that of single dissolving or low-temperature and normal-temperature dissolving.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (1)
1. A high-temperature circulating dissolving method for high-evolution pyrobitumen is characterized by comprising the following steps:
soaking pyrobitumen in a first reagent for 22-26 hours at the temperature of 0-5 ℃ under a sealed condition, wherein the first reagent is carbon disulfide;
soaking the pitch subjected to the first soaking in a second reagent for 22-26 hours at 15-25 ℃, wherein the second reagent is chloroform;
adopt the pyrobitumen high temperature cycle dissolving device of high evolution to the pyrobitumen through soaking for the second time circulate and dissolve, include: placing the pitch subjected to the second soaking in the extractor, wherein a third solvent for dissolving is filled in the dissolver, and the third solvent is circularly dissolved for 22-26 hours at the temperature of 180-220 ℃, and comprises N, N-dimethylformamide and N-methyl-2-pyrrolidone in a volume ratio of 1: 1-2;
the high-evolution pyrobitumen high-temperature circulating dissolving device comprises a dissolver, a heater for heating the dissolver, an extractor, a ventilating device for ventilating and a condenser, wherein the dissolver is arranged above the heater, one end of the extractor is connected with an opening of the dissolver, and the other end of the extractor is connected with the condenser.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6121590B2 (en) * | 1980-06-30 | 1986-05-28 | Kerr Mcgee Refining Corp | |
| JPH0323202B2 (en) * | 1986-10-09 | 1991-03-28 | Watanabegumi Kk | |
| CN103242881A (en) * | 2013-05-30 | 2013-08-14 | 神华集团有限责任公司 | Method for separating bituminous substances from coal direct liquefaction residues |
| CN103837423A (en) * | 2014-03-24 | 2014-06-04 | 北京英斯派克科技有限公司 | Device for simultaneously measuring plurality of types of insoluble substances |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20032207A1 (en) * | 2003-11-14 | 2005-05-15 | Enitecnologie Spa | INTEGRATED PROCEDURE FOR THE CONVERSION OF CHARGES CONTAINING CARBON IN LIQUID PRODUCTS. |
| CN102120830B (en) * | 2011-01-10 | 2012-05-23 | 东南大学 | Extraction solvent special for polystyrene butadiene modified asphalt and extraction method thereof |
| CN103711058A (en) * | 2013-12-10 | 2014-04-09 | 柳州博泽科技有限公司 | Process for recycling asphalt from asphalt mixture |
| CN103696345A (en) * | 2013-12-20 | 2014-04-02 | 柳州联海科技有限公司 | Method for recycling asphalt from asphalt mixture |
| CN105132000B (en) * | 2015-08-26 | 2018-09-28 | 西南石油大学 | A kind of solvent and its application method of dissolving high maturity pyrobitumen |
| CN105176559B (en) * | 2015-09-30 | 2018-10-23 | 沈阳建筑大学 | The device and method of Bituminous concrete surface in a kind of quick recycling waste asphalt pavement material |
-
2018
- 2018-04-03 CN CN201810289574.3A patent/CN108531206B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6121590B2 (en) * | 1980-06-30 | 1986-05-28 | Kerr Mcgee Refining Corp | |
| JPH0323202B2 (en) * | 1986-10-09 | 1991-03-28 | Watanabegumi Kk | |
| CN103242881A (en) * | 2013-05-30 | 2013-08-14 | 神华集团有限责任公司 | Method for separating bituminous substances from coal direct liquefaction residues |
| CN103837423A (en) * | 2014-03-24 | 2014-06-04 | 北京英斯派克科技有限公司 | Device for simultaneously measuring plurality of types of insoluble substances |
Non-Patent Citations (1)
| Title |
|---|
| 熊出华.沥青抽提和回收用替代溶剂适用性评价.《重庆建筑大学学报》.2007,第29卷(第2期), * |
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