CN1049846C - Preparation and use for coal based oil absorbent - Google Patents
Preparation and use for coal based oil absorbent Download PDFInfo
- Publication number
- CN1049846C CN1049846C CN95103048A CN95103048A CN1049846C CN 1049846 C CN1049846 C CN 1049846C CN 95103048 A CN95103048 A CN 95103048A CN 95103048 A CN95103048 A CN 95103048A CN 1049846 C CN1049846 C CN 1049846C
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- Prior art keywords
- oil
- absorbent
- oil absorbent
- coal
- coal based
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Removal Of Floating Material (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The present invention relates to the preparation of coal-base oil absorbent and a method which uses the oil absorbent to absorb floating oil at sea, in rivers, on the surfaces of lake water, etc. Coal of which the particle size is from 3 to 30 millimeters is uniformly heated in isolated air at the temperature of 500 to 900 DEG C to be made into solid granular oil absorbent. The oil absorbent is used for absorbing large-area oil stains on the sea surface, the river and the lake, and the effects is very ideal, which solves the problem that oil stains are difficult to clean ever since a long time ago. The oil absorbent has easy preparation and wide material source. The oil absorbent has a high speed of oil absorption and a small apparent density; the oil absorbent can float on a water surface before and after the oil absorbent absorbs oil, which is convenient for the recovery and the post treatment of the oil absorbent. The present invention provides a good method for treating large-scale oil stains on the water surface.
Description
The present invention relates to a kind of preparation of coal based oil absorbent and be used to adsorb the oil slick on sea, river and water body in lake surface etc.
Because industrial country has promoted the import and export of oil greatly to the increase of demand for energy.The increase of offshore oil freight volume and offshore oil exploitation cause the pollution of oil to ocean, river and lake inevitably.Especially breaking of the leakage of steamer and oil pipeline will be caused more serious pollution.
At present, be to adopt huge floating log to form fence oil is surrounded to offshore oil exploitation and the oil tanker ship oil that overflows that has an accident, yet even oil is surrounded, but the removing of oil pollution is still the problem of a ubiquity.The trend that solves the oil slick pollution problem is to adopt oil absorber that oil is adsorbed.This has just proposed a series of requirements to oil adsorbent: at first oil adsorbent must be bubbled through the water column, and ability and oil slick are convenient to sorbent material is reclaimed after the oil suction simultaneously at one like this: the second, and the resource of system oil adsorbent should be very abundant, and low price.Handle extensive oil pollution, as the required sorbent material of handling more than the tons up to a million of oil pollution will be a lot, so just require a large amount of materials of cheap making oil absorber; The 3rd, making method should be simple; The 4th, oil absorptiveness will be got well, and it is big that oil number is wanted; The 5th, convenient post-treatment.At present, many scientists are arranged in the world all in the method for seeking to handle marine floating oil, some oil adsorbents have been developed, as the inorganic product silicate foam, organic products is as polypropylene, polyurethane foam, organic plant product such as pleurisy foot vegetable fibre, cotton, straw etc., these products or because of being subjected to the restriction of resource and working method, or, be unfavorable for extensive use because of costing an arm and a leg.
Purpose of the present invention, the preparation method who provides a kind of coal based oil absorbent is adsorbed the oil slick of water surface such as ocean, rivers and lake.
The object of the present invention is achieved like this, and the long-flame coal with granularity 3-30mm feeds rotary kiln continuously with certain speed, and at 500-900 ℃ stove internal heating, rotary kiln rotates with certain speed.The coal based oil absorbent of making is the solid granular material, and volume density is 0.6-0.9g/cc, and oil absorption is 0.3-0.8g oil/g oil absorber.
The purposes of coal based oil absorbent is the adsorbed water body oil slick, and it is broadcasted sowing by the water surface of oil pollution, can rapidly oil slick be adsorbed, and adhesion mutually forms a kind of reticulation at the water surface after the oil suction.This oil absorber is dragged for away, and oil slick promptly is removed.Coal based oil absorbent is suitable for handling a large amount of oil slick on ocean, rivers and the lake, as the processing of ocean draining.
Can pass through the proper method thermal regeneration after the coal based oil absorbent oil suction, regenerative process can reclaim the oil that is adsorbed, and as not regenerating, can be used as fuel and uses.
The present invention has the following advantages: 1 long-flame coal aboundresources, the coal based oil absorbent working method is simple, makes that the coal based oil absorbent cost is lower.2 coal based oil absorbent volume densities are little, all can bubble through the water column before and after the oil suction, are convenient to the recovery after oil suction and the oil suction.3 speed of oil absorption are fast, can remove the water surface oil slick in 40 seconds.
Below in conjunction with embodiment the present invention is further described: the making of embodiment 1 coal based oil absorbent:
With the granularity of getting ready is the long-flame coal of the 3mm feed bin of packing into, by screw feeder the coal in the feed bin is sent into rotary kiln.Temperature in the stove is controlled at 750 ℃, and the coal grain residence time is determined (can assign to adjust coal grain heated time by the volatilization of testing product, volatile matter requires less than 8%) according to the character of coal.Through promptly becoming oil absorber after the hot worked coal cooling.The oil absorber porosity that makes is greater than 55%, and volume density is less than 0.9g/cc.
Embodiment 2 absorption oil (Daqing crude oil) tests
Get the beaker of a 1000ml, the 800ml temperature of packing into is 25 ℃ a clear water, 5g crude oil added in the entry stir, allow oil be evenly distributed on water surface, (particle diameter 3-6mm) is sprinkling upon on the water surface with the 15g oil absorber, stir a little, the effect rapidly of water and oil, oil is adsorbed after 30 seconds, and oil absorber reticulates arrangement in water surface, oil absorber is dragged for away, and oil slick promptly is removed.
Embodiment 3 tests machine oil, diesel oil, edible vegetable oil respectively by example 2 methods, and test-results is with example 2.
The test of embodiment 4 simulated seawaters
The same with example 2, just in beaker, add a certain amount of salt, cause simulated seawater, test effect is the same with example 2, illustrates that this oil absorber is not influenced by salt.
The test of embodiment 5 adsorptive capacitys
Get 4 in 500ml beaker, be numbered 1,2,3,4, in beaker 1, add the 200ml oil, in beaker 2, add 200ml diesel oil, in beaker 3, add 200ml85 machine oil, in beaker 4, add 200ml edible vegetable oil.Taking by weighing each 20g of 4 parts of oil absorbers (granularity 3-6mm) then joins respectively in the beaker 1,2,3,4, when the timed interval is 1 minute, oil absorber is taken out weigh, multiple again oil absorber being put back to separately in the beaker, in the timed interval is 5 minutes, when 1 hour and 24 hours according to last processing.The oil number of calculating when the different time interval, test-results sees Table 1.As can be seen from Table 1, oil absorber absorption food plant oil mass is maximum, and absorption diesel oil amount is minimum, and the absorption oil amount is placed in the middle.
Table 1 adsorption time and the absorption the relationship between quantities container material oil volume time interval total oil absorption numbering ml 1min 5min 1h 24h g oil/200 9.0 9.1 9.1 15 0.753 No. 85 machine oil of g oil absorbent 1 grand celebration oil, 200 9.0 9.3 10.2 16 0.82 diesel oil, 200 12.6 13.0 13.4 18 0.94 edible vegetable oils 200 14.0 14.8 15.6 22.6 1.13
Claims (2)
- The preparation of 1 one kinds of coal based oil absorbents, it is characterized in that with granularity being that the long-flame coal of 3-30mm is under 500-900 ℃ temperature, even heating under the condition of secluding air, make the solid granular coal based oil absorbent, this oil absorber oil absorption is 0.3-0.8g oil/g oil absorber, and volume density is 0.6-0.9g/cc.
- The purposes of 2 coal based oil absorbents according to claim 1 is characterized in that being used for bulk petroleum and reveals the water body oil pollution that causes, and by it being broadcasted sowing by the water surface of oil pollution, coal based oil absorbent can be rapidly with oil absorption, and oil absorber is bubbled through the water column after the oil suction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95103048A CN1049846C (en) | 1995-03-30 | 1995-03-30 | Preparation and use for coal based oil absorbent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95103048A CN1049846C (en) | 1995-03-30 | 1995-03-30 | Preparation and use for coal based oil absorbent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1133752A CN1133752A (en) | 1996-10-23 |
| CN1049846C true CN1049846C (en) | 2000-03-01 |
Family
ID=5074576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95103048A Expired - Fee Related CN1049846C (en) | 1995-03-30 | 1995-03-30 | Preparation and use for coal based oil absorbent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1049846C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101703A (en) * | 2010-12-29 | 2011-06-22 | 中国海洋大学 | Technology for purifying heavy oil sewage by using raw coal absorbent fixed bed |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4540678A (en) * | 1982-09-07 | 1985-09-10 | Calgon Carbon Corporation | Carbon molecular sieves and a process for their preparation and use |
| SU1224267A1 (en) * | 1983-03-15 | 1986-04-15 | Предприятие П/Я А-1785 | Water-proofing agent for expanded perlite sand sorbent |
-
1995
- 1995-03-30 CN CN95103048A patent/CN1049846C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4540678A (en) * | 1982-09-07 | 1985-09-10 | Calgon Carbon Corporation | Carbon molecular sieves and a process for their preparation and use |
| SU1224267A1 (en) * | 1983-03-15 | 1986-04-15 | Предприятие П/Я А-1785 | Water-proofing agent for expanded perlite sand sorbent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1133752A (en) | 1996-10-23 |
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