CN1167613C - Process for preparing high surface activity carbon in garbage incinerator coupling activating furnace - Google Patents
Process for preparing high surface activity carbon in garbage incinerator coupling activating furnace Download PDFInfo
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- CN1167613C CN1167613C CNB021179174A CN02117917A CN1167613C CN 1167613 C CN1167613 C CN 1167613C CN B021179174 A CNB021179174 A CN B021179174A CN 02117917 A CN02117917 A CN 02117917A CN 1167613 C CN1167613 C CN 1167613C
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- incinerator
- garbage incinerator
- surface activity
- high surface
- furnace
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- Incineration Of Waste (AREA)
Abstract
The present invention discloses a method by which an activating oven is coupled with a garbage incinerator so as to prepare high-surface activated carbon. The method mainly utilizes the high temperature produced by the garbage incinerator to achieve the temperature required by activation, the tail gas of the incinerator is used as an oxidizing agent for activation, and the tail gas of the activating oven returns to the garbage incinerator for secondary combustion. The present invention has the advantages that on one hand, the preparation cost of high-surface activated carbon is greatly reduced; on the other hand, the general economical benefit of the garbage incinerator is greatly increased due to the high-surface activated carbon with high added value as the by-product of the garbage incinerator.
Description
Technical field
The present invention relates to a kind of new high surface activity carbon preparation method and the approach of raising incinerator economic benefit, belong to high surface activity carbon preparation and garbage incineration technology.
Background technology
The harmless treatment of municipal wastes is the important topic that is subjected to World Focusing.China's urban growth speed root is fast, and the refuse treatment problem is a urgent task especially.The core technology of rubbish processing to be harmless is an incinerator.The design that improves incinerator can reduce the refuse treatment cost, but the economic level of at present best technology of garbage disposal still makes rubbish processing to be harmless become the important burden of country.The effective way that addresses this problem is the byproduct added value of managing to improve in the waste incineration process.No matter the direct product of incinerator is gas-phase product or solid product (slag), and marketable value is not very high.Therefore, how to prepare high value added product, relate to daily-life garbage without environmental pollution and handle scope and the speed of promoting, relate to the environment protection level of whole country at incinerator.
On the other hand, so-called super-activated carbon with high-specific surface area and microvoid structure, it is the important novel material in clean energy field, performance with large vol natural gas-storing and hydrogen, and has special adsorption separation performance, be market in urgent need but do not have the product of the source of goods, because the preparation of this kind gac relates to environmental protection and energy consumption problem.The preparation of employing chemical activation method is owing to environmental requirement makes cost too high.The preparation of employing physical activation method, because speed of response is low, time length causes energy consumption too high.
Summary of the invention
This patent is coupled in the physically activated stove of high surface activity carbon in the incinerator, utilize " used heat " to provide activation temperature required, utilize the waste incineration furnace exhaust gas to provide activation required oxygenant, reduce the gac cost from face, and provide high value added product to improve its economic benefit for incinerator.
The high-temperature part of incinerator can reach the above high temperature of 800 degree Celsius at least, can satisfy the temperature requirement of prepared by physical method high surface activity carbon, contains great amount of carbon dioxide in the combustion tail gas, can be used as activator.Activation furnace is coupling in the high temperature position of incinerator, makes that temperature reaches more than 800 degrees centigrade in the activation furnace, and a certain amount of waste incineration furnace exhaust gas is fed activation furnace, in activation furnace, can carry out the charing and the reactivation process of raw material of wood-charcoal material.The tail gas that activation furnace produces can return the incinerator burning based on carbon monoxide, realizes the utilization fully of energy.Adding iron, nickel oxide or sylvite is catalyzer, can shorten soak time.After 80-160 hour, can obtain the activated carbon product of high-specific surface area.
The present invention is realized by following proposal.The horizontal activation body of heater of metal material is placed the comfort zone of incinerator, load the starting material (as coconut husk etc.) of preparation gac in the stove, the part tail gas of incinerator is introduced activation furnace.Adopt the online detection of CO detector CO concentration wherein in the activatory furnace exhaust gas exit portion, adopt feedback control to regulate the tail gas amount that enters activation furnace.The rotating speed of control activation furnace makes the interior material reaction of stove even.The activatory furnace exhaust gas composition still can return the incinerator burning based on carbon monoxide.
The invention has the advantages that: 1, compare, need not ad hoc heating installation, and significantly improved the thermo-efficiency of whole reactivation process, greatly reduce the energy consumption cost of gac with common method for preparation of active carbon.2, compare with common method for preparation of active carbon, need not ad hoc oxidizer source, significantly reduced material cost.3, compare with common incinerator, have high value added product, improved the economical operation situation of garbage burning factory greatly.
Embodiment
According to the scale of incinerator and the size in the suitable zone of temperature, the length and the furnace diameter of design activation furnace.Body of heater one end is provided with gac material inlet and oxygenant (tail gas from incinerator) import, the pipeline that the other end is provided with the tail gas outlet and is connected with the incinerator fuel inlet, and online detection and the feedback control system of CO.This end configuration finished product charcoal dumping device.Look the kind and the consumption of activation temperature, catalyzer, soak time is 80-160 hour.
Claims (1)
1. method that the coupling of activation furnace and incinerator is prepared high surface activity carbon, it is characterized in that, horizontal activation furnace is positioned at the high temperature position of incinerator more than 800 degrees centigrade, tail gas from incinerator is as activator, perhaps being aided with iron, nickel oxide or sylvite is catalyzer, enters the oxidant content of activation furnace by online detection activatory furnace exhaust gas Composition Control, and activatory furnace exhaust gas returns the incinerator burning, soak time is 80-160 hour, can make high surface activity carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021179174A CN1167613C (en) | 2002-05-23 | 2002-05-23 | Process for preparing high surface activity carbon in garbage incinerator coupling activating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021179174A CN1167613C (en) | 2002-05-23 | 2002-05-23 | Process for preparing high surface activity carbon in garbage incinerator coupling activating furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1377826A CN1377826A (en) | 2002-11-06 |
| CN1167613C true CN1167613C (en) | 2004-09-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021179174A Expired - Fee Related CN1167613C (en) | 2002-05-23 | 2002-05-23 | Process for preparing high surface activity carbon in garbage incinerator coupling activating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1167613C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798081B (en) * | 2009-12-11 | 2012-08-22 | 深圳市兖能环保科技有限公司 | Method and device for producing active carbon from solid product in refuse microwave pyrolysis treatment system |
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2002
- 2002-05-23 CN CNB021179174A patent/CN1167613C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1377826A (en) | 2002-11-06 |
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| CF01 | Termination of patent right due to non-payment of annual fee |