Double-body activated carbon vacuum sulfurizing device and using method thereof

Abstract

The invention discloses a double-body activated carbon vacuum sulfurizing device and a using method thereof. The device comprises a carbon storage kettle body and a sulfur storage kettle body, the topof the sulfur storage kettle body is provided with a sulfur kettle sealing cover, the top of the carbon storage kettle body is provided with a carbon kettle sealing cover, a sulfurizing pipe is arranged between the carbon kettle sealing cover and the sulfur kettle sealing cover, the two ends of the sulfurizing pipe respectively pass through the carbon storage kettle body and the sulfur storage kettle body and are communicated with cavities of the carbon storage kettle body and the sulfur storage kettle body, a carbon kettle heater is arranged outside the carbon storage kettle body, a sulfur kettle heater is arranged outside the sulfur storage kettle body, and the carbon kettle sealing cover is provided with a nitrogen gas inlet pipe and a vacuum suction pipe. The activated carbon and thesublimed sulfur are separately placed, only the activated carbon in the carbon storage kettle body is taken out after each operation, and the operation is simple. The sublimation sulfur can be used multiple times only through one filling process. The filled nitrogen gas keeps the uniformity and shape of the activated carbon sample. A water jacket can control the cooling rate.

Description

technical field [0001] The invention relates to the field of chemical equipment, in particular to a two-body activated carbon vacuum sulfurizing device and its use method. Background technique [0002] The sodium-sulfur battery was first invented and announced by the Ford company of the United States in 1967, and it has a history of more than 40 years. In general, a battery is usually composed of a positive electrode, a negative electrode, an electrolyte, a separator, and a casing. Generally, conventional secondary batteries such as lead-acid batteries and nickel-cadmium batteries are composed of solid electrodes and liquid electrolytes, while sodium-sulfur batteries are just the opposite. They are composed of molten electrodes and solid electrolytes, and the working temperature is 300-350 The active material constituting its negative electrode is molten metal sodium, and the active material of the positive electrode is liquid sulfur and sodium polysulfide molten salt. Si...

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Problems solved by technology

[0003] my country is rich in biomass resources, and activated carbon can be produced in large quantities. Therefore, how to efficiently utilize activated carbon and expand the use of activated carbon has become a research hotspot for a large number of scientific researchers. Among them, the production of sodium-sulfur batteries by active sulfurization is a good direction, but currently activated carbon The sulfurizing process is seldom reported in the articles. There are two main traditional laboratory sulfurizing processes: one is to use a high temperature tube furnace for sulfurizing. The disadvantage is that the sulfurizing samples are not ideal and the output is low; the second is to use The muffle furnace is sulfurized in the battery glove box. The disadvantage is that the glove box is expensive, the sample output is low, and the operation is dangerous.

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