AU2018101657A4 - A process of regenerating activated carbon - Google Patents
A process of regenerating activated carbon Download PDFInfo
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- AU2018101657A4 AU2018101657A4 AU2018101657A AU2018101657A AU2018101657A4 AU 2018101657 A4 AU2018101657 A4 AU 2018101657A4 AU 2018101657 A AU2018101657 A AU 2018101657A AU 2018101657 A AU2018101657 A AU 2018101657A AU 2018101657 A4 AU2018101657 A4 AU 2018101657A4
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- activated carbon
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Abstract
The invention provides a process of regenerating activated carbon, comprising the steps: a. placing waste activated carbon in a stainless steel storage tank, and extracting gas in the storage tank using a vacuum pump to make the storage tank negatively pressurized inside; b. placing waste activated carbon with a moisture content of 30-40% into a digital control high temperature smoldering furnace and heating for 4-6 hours at a temperature of 60-90 C; c. controlling the digital control high temperature smoldering furnace to gradually heat to a temperature of 850-900 C within 3-4 hours; d. introducing oxidizing gas into the digital control high temperature smoldering furnace to carry out a gasification reaction, controlling the temperature at 850-900 C, maintaining for 4-6 hours to obtain activated carbon.
Description
A PROCESS OF REGENERATING ACTIVATED CARBON
TECHNICAL FIELD
The invention relates to a process of regenerating activated carbon.
BACKGROUND
The traditional process of regenerating activated carbon is performed by manually disposing the waste activated carbon in a clay tank, moving it to the earth kiln for heating and regeneration, and heating it from a temperature of 30 °C to 900 °C with wood. After heated at a constant temperature for 18 hours, it is directly sprayed with water to cool down to 30 °C, manually moved out, and screened using a screening machine. The traditional process of regenerating activated carbon may cause serious pollution, high labor cost, high energy consumption, low and unstable quality of activated carbon.
Any discussion of the prior art throughout the specification should in no way be considered as an admission that such prior art is widely known or forms part of common general knowledge in the field.
It is an object of the present invention to overcome or ameliorate at least one of the disadvantages of the prior art, or to provide a useful alternative.
SUMMARY
The invention is to solve the technical problem that the process of regenerating activated carbon of prior art may cause high energy consumption, high labor cost, low and unstable quality for activated carbon, so as to provide a process of regenerating activated carbon that causes low energy consumption, and achieve environmental protection and may produce high quality activated carbon.
SPECIFICATION
2018101657 05 Nov 2018
Thus, the invention provides a process of regenerating activated carbon, comprising the steps:
a. placing waste activated carbon in a stainless steel storage tank, and extracting gas in the storage tank using a vacuum pump to make the storage tank negatively pressurized inside;
b. placing waste activated carbon with a moisture content of 30-40% into a digital control high temperature smoldering furnace and heating for 4-6 hours at a temperature of 60-90°C;
c. controlling the digital control high temperature smoldering furnace to gradually heat to a temperature of 850-900 °C within 3-4 hours;
d. introducing oxidizing gas into the digital control high temperature smoldering furnace to carry out a gasification reaction, controlling the temperature at 850-900°C, maintaining for 4-6 hours to obtain activated carbon, and re-introducing high temperature exhaust gas generated into the furnace for performing the step b;
e. cooling the activated carbon for 6-8 hours to a temperature of 30 °C through a water cooling treatment system;
f. decontaminating and classifying the activated carbon after cooling, using an air flow conveyor, a classifier, a cyclone collector, a pulse collector and a carbon mixer respectively;
g. packing the classified activated carbon after being vacuum-compressed;
wherein, 40-60% of low temperature exhaust gas generated in step b is introduced into a roasting section and an activation section for roasting and activation, and the remaining part of the low temperature exhaust gas is introduced into the a exhaust gas treatment system; and
SPECIFICATION
2018101657 05 Nov 2018 heat generated by the exhaust gas treatment system through high temperature combustion and the water cooling treatment system is led back to step b or c or d for preheating.
In the process of regenerating activated carbon of embodiments of the invention, the temperature in step b is 60-65 °C and duration for heating is 5-6 hours.
In the process of regenerating activated carbon of embodiments of invention, in the step c, the digital control high temperature smoldering furnace is controlled to gradually heat to a temperature of 900°C within 3.5 hours.
Unless the context clearly requires otherwise, throughout the description and the claims, the words ‘comprise’, ‘comprising’, and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of ‘including, but not limited to’.
The invention has the following technical advantages compared with prior arts:
1. According to the process of regenerating activated carbon of the embodiments of the invention, the activation is performed in a high temperature smoldering furnace, so that it may achieve high level of automation, low labor cost, long energy consumption, and low pollution, and also make sure the quality and stability of activated carbon regenerated.
DETAILED DESCRIPTION OF EMBODIMENTS
The embodiments of the invention provide a process of regenerating activated carbon, comprising the steps:
SPECIFICATION
2018101657 05 Nov 2018
a. placing waste activated carbon in a stainless steel storage tank, and extracting gas in the storage tank using a vacuum pump to make the storage tank negatively pressurized inside;
b. placing waste activated carbon with a moisture content of 30-40% into a digital control high temperature smoldering furnace and heating for 4-6 hours at a temperature of 60-90 °C ;
c. controlling the digital control high temperature smoldering furnace to gradually heat to a temperature of 850-900 °C within 3-4 hours;
d. introducing oxidizing gas into the digital control high temperature smoldering furnace to carry out a gasification reaction, controlling the temperature at 850-900°C, maintaining for 4-6 hours to obtain activated carbon, and re-introducing high temperature exhaust gas generated into the furnace for performing the step b;
e. cooling the activated carbon for 6-8 hours to a temperature of 30 °C through a water cooling treatment system;
f. decontaminating and classifying the activated carbon after cooling, using an air flow conveyor, a classifier, a cyclone collector, a pulse collector and a carbon mixer respectively;
g. packing the classified activated carbon after being vacuum-compressed;
wherein, 40-60% of low temperature exhaust gas generated in step b is introduced into a roasting section and an activation section for roasting and activation, and the remaining part of the low temperature exhaust gas is introduced into the a exhaust gas treatment system; and heat generated by the exhaust gas treatment system through high temperature combustion and the water cooling treatment system is led back to step b or c or d for preheating.
SPECIFICATION
2018101657 05 Nov 2018
In the process of regenerating activated carbon of embodiments of the invention, the temperature in step b is 60-65 °C and duration for heating is 5-6 hours.
As a preferred embodiment, in the process of regenerating activated carbon of this embodiment, the temperature in the step b is 60 °C, and the duration of heating is 6 hours.
In the process of regenerating activated carbon of embodiments of invention, in the step c, the digital control high temperature smoldering furnace is controlled to gradually heat to a temperature of 900°C within 3.5 hours.
According to the process of regenerating activated carbon of the embodiments of the invention, the activation is performed in a high temperature smoldering furnace, so that it may achieve high level of automation, low labor cost, long energy consumption, and low pollution, and also make sure the quality and stability of activated carbon regenerated.
Obviously, the above mentioned embodiments are for clearly explaining the present invention, which do not constitute undue limitation of the present invention. It is obviously to the skilled person in the art that, various modifications could be derived without departing from the spirits and the effects of the invention. And there is no need to describe all the embodiments Therefore, the modifications or alternations derived thereof are still included in the protection scope of the present invention.
Claims (3)
- 2018101657 05 Nov 20181. A process of regenerating activated carbon, comprising the steps:a. placing waste activated carbon in a stainless steel storage tank, and extracting gas in the storage tank using a vacuum pump to make the storage tank negatively pressurized inside;b. placing waste activated carbon with a moisture content of 30-40% into a digital control high temperature smoldering furnace and heating for 4-6 hours at a temperature of 60-90°C;c. controlling the digital control high temperature smoldering furnace to gradually heat to a temperature of 850-900 °C within 3-4 hours;d. introducing oxidizing gas into the digital control high temperature smoldering furnace to carry out a gasification reaction, controlling the temperature at 850-900°C, maintaining for 4-6 hours to obtain activated carbon, and re-introducing high temperature exhaust gas generated into the furnace for performing the step b;e. cooling the activated carbon for 6-8 hours to a temperature of 30 °C through a water cooling treatment system;f. decontaminating and classifying the activated carbon after cooling, using an air flow conveyor, a classifier, a cyclone collector, a pulse collector and a carbon mixer respectively;g. packing the classified activated carbon after being vacuum-compressed;wherein, 40-60% of low temperature exhaust gas generated in step b is introduced into a roasting section and an activation section for roasting and activation, and the remaining part of the low temperature exhaust gas is introduced into the a exhaust gas treatment system; and heat generated by the exhaust gas treatment system through high temperature combustion and the water cooling treatment system is led back to step b or c or d for preheating.2018101657 05 Nov 2018
- 2. The process of regenerating activated carbon of claim 1, characterized in that the temperature in step b is 60-65 °C and duration for heating is 5-6 hours.
- 3. The process of regenerating activated carbon of claim 1 or 2, characterized in that in the step c, the digital control high temperature smoldering furnace is controlled to gradually heat to a temperature of 900°C within 3.5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2018101657A AU2018101657A4 (en) | 2018-11-05 | 2018-11-05 | A process of regenerating activated carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2018101657A AU2018101657A4 (en) | 2018-11-05 | 2018-11-05 | A process of regenerating activated carbon |
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| Publication Number | Publication Date |
|---|---|
| AU2018101657A4 true AU2018101657A4 (en) | 2018-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2018101657A Ceased AU2018101657A4 (en) | 2018-11-05 | 2018-11-05 | A process of regenerating activated carbon |
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| AU (1) | AU2018101657A4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982326A (en) * | 2020-08-24 | 2020-11-24 | 北华大学 | Underground fire temperature acquisition system |
-
2018
- 2018-11-05 AU AU2018101657A patent/AU2018101657A4/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111982326A (en) * | 2020-08-24 | 2020-11-24 | 北华大学 | Underground fire temperature acquisition system |
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| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |