Mar 02 , 2024

The difference between physical process activated carbon and chemical process activated carbon

1. Activated carbon produced by physical method can only be crushed and ground with natural activated carbon, but there is very little natural activated carbon. Natural carbon is mainly coal and graphite, but it does not have the activity to adsorb and separate substances. 2. Chemical activated carbon is made by heating and distilling organic matter (usually wood fiber materials) under the condition of isolating air. Generally, it has a loose texture, small specific gravity, large specific surface area, and good water absorption and adsorption. For example, gold is adsorbed from solution, the adsorption effect of coconut shell carbon… The reason why chemical charcoal is more expensive than ordinary charcoal is activation and special treatment. The price of chemical activated carbon is higher than that of ordinary activated carbon. However, the raw material activity of this process is low, the activation time is long, the micropore size distribution is difficult to control, the quality of activated carbon is unstable, the specific surface area is low, and the development of mesoporous materials is insufficient, which limits its application. The preparation process of physical activated carbon is slightly different from that of chemical activated carbon. During the activation process, chemical reagents such...

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Feb 21 , 2024

A new design of activated carbon production equipment

  Activated carbon production equipment is generally kiln type, vertical furnace structure or external heating type, internal heating type rotary furnace, such as vertical activation furnace and rotary carbonization furnace to produce activated carbon: raw materials are added to the carbonization furnace through a bucket elevator or belt conveyor, and the furnace head is The furnace gas is heated, and the hot flue gas contacts the material in a counter-current manner. As the temperature gradually increases, the processes of preheating, drying, dehydration, cracking and carbonization are completed in sequence; the carbonized material produced is discharged from the tail of the furnace and is cooled and stored in the warehouse. The tail gas is burned in the waste heat boiler and then emptied; the carbonized material is added from the top of the vertical activation furnace through lifting equipment, and is activated by high-temperature water vapor and discharged from the bottom of the furnace, which is the finished activated carbon.   The above-mentioned carbonization furnace and activation furnace are set up independently of each other, requiring high raw material processing and transportation costs; the structure of the furnace body is difficult to achieve the desired temperature control, resulting in low output...

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Feb 19 , 2024

Bamboo-based activated carbon method and production device.

  Activated carbon is an excellent adsorbent with developed void structure, huge specific surface area and adsorption capacity. It is stable in nature, insoluble in water and organic solvents, resistant to acids and alkalis, and can be easily regenerated after use. There are many types of activated carbon, but the history of activated carbon manufacturing and application has proven that activated carbon produced from bamboo and wood raw materials has the advantages of large total pore volume, large specific surface area, high reactivity and fewer impurities compared with activated carbon produced from other raw materials. However, with the improvement of the environmental awareness of the whole society, in order to protect forest resources, the state has expressly prohibited logging and deforestation, so the raw materials of wood-based activated carbon are becoming increasingly scarce. Bamboo has the characteristics of fast growth and short maturity period, so its resources are relatively abundant, so it is necessary to vigorously develop it.   Bamboo-based activated carbon method and production device. The method includes the following steps: A. Drying: After crushing the bamboo, use 250°C-350°C drying gas for drying; B. Carbonization: Use 550°C-700°C pyrolysis gas as a heat carrier to dry the dried bamboo. Carry...

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Feb 19 , 2024

Carbonization and activation process of activated carbon

Carbonization and activation are two essential links in the production and processing of activated carbon.   Carbonization is a slow heating process, roughly divided into three stages: the first stage is the drying stage; the second stage is the beginning of pyrolysis stage; the third stage is the carbonization stage, in which polycondensation and decomposition reactions are the main ones.   Activation methods are generally divided into three types, namely gas activation method, chemical drug activation method and chemical and physical activation method. At present, domestic and foreign manufacturers that produce activated carbon using anthracite, bituminous coal and lignite as raw materials generally use gas activation method. The traditional preparation process of coal-based activated carbon has the following shortcomings: first, the carbonization process and activation process in the traditional process are carried out in independent workshops, and the carbonization and activation time are long, the yield is low, and the overall manufacturing cost is high; second, , The transfer of the required raw materials requires a large amount of machinery or manpower, which is neither economical nor efficient; third, a separate boiler is required to provide the steam required for carbonization and activation; fourth, during the production process, due to...

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Aug 16 , 2023

Delivery of Drying Machine to a Customer in Malaysia

   Xuye Machinery Company, a reputable manufacturer specializing in drying equipment, recently completed a successful transaction involving the delivery of a drying machine to a valued customer in Malaysia. This case study highlights the efficient collaboration and seamless logistics that ensured the timely and safe delivery of the drying machine.  The journey began when a customer from Malaysia contacted Xuye Machinery Company with specific requirements for a drying machine. The customer, a prominent player in the agricultural sector, sought a high-capacity drying solution to process wood chips. After a detailed consultation, Xuye Machinery Company proposed a customized solution that addressed the customer’s unique needs, including adjustable temperature controls, energy-efficient features, and a user-friendly interface.   The successful delivery of the drying machine to the customer in Malaysia highlights Xuye Machinery Company’s commitment to customer satisfaction and its expertise in providing customized drying solutions. This case study serves as a testament to the company’s capability to collaborate efficiently across borders, ensuring the timely and safe delivery of specialized machinery. Moving forward, Xuye Machinery Company looks forward to fostering more such partnerships and contributing to the growth and innovation in various industries worldwide.

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Jul 21 , 2023

Dryer Shipment to Chile: Boosting Industrial Efficiency and Sustainability

In a significant step towards enhancing industrial efficiency and sustainability, a batch of advanced dryers has been successfully shipped to Chile.

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