Method for producing carbon disulfide
A carbon disulfide and compound technology, applied in the field of carbon disulfide preparation, can solve the problems of low gas cost, incomplete pyrolysis, low dry distillation temperature, etc., and achieve the effects of protecting the environment, saving wood, and solving environmental pollution
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example 1
[0027] Example 1 Take gas coal dry distillation by-product-semi-coke, (the dry-distillation by-product semi-coke can be directly taken from the by-product of Datong's local vertical carbonization gasifier-carbonization semi-coke) and grind it into powder, and sieve to get 2-10 The physical and chemical parameters of the target semi-coke particles are as follows: bulk density 0.4g / ml; surface area 200m 2 carbon content 95%; moisture 2%; ash 15%; volatile matter 15%; take 100 grams of the above-mentioned semi-coke particles, put them into a laboratory cast iron reaction furnace, heat to 800 ° C, add sulfur liquid, and put them in the reaction tube The temperature was kept at 800-950° C., and after 5 hours, 220 grams of carbon disulfide were obtained. Yield 35.0%.
Embodiment 2
[0028] Example 2 The raw material is the leftover coke powder after crushing coke in a coking plant, and its physical and chemical parameters are as follows: bulk density 0.75g / ml; surface area 8m 2 / g; carbon content 60%; moisture 10%; ash 3%; volatile matter 4%; particle size 2-10 mesh. The experimental method is the same as in Example 1. The semi-coke raw material is still 100 grams, which is added to the reaction furnace at one time, but the liquid sulfur is added step by step, and added in two times within 5 hours, that is, half of the first addition, two hours Afterwards, add other half, reaction result is substantially identical with embodiment 1.
Embodiment 3
[0029] Example 3 The raw material source is the solid residue after dry distillation of lignite, the weight is 120 grams, and its physical and chemical parameters are as follows: bulk density 0.6g / ml; surface area 150m 2 / g; carbon content 88%; water content 5%; ash content 10%; volatile content 6%; particle size 5-20 mesh. Still adopt the experimental method of embodiment 1, reaction result is to obtain 265 grams of carbon disulfide. The yield was 36.4%.
[0030] Industrial Example According to the technical indicators of semi-coke in Example 1, an elliptical industrial carbon disulfide reactor with a long diameter of 1.0m, a short diameter of 0.5m and a height of 3.3m was used to expand the test, and 101kg of semi-coke was added and reacted for 23.5 hours to produce a total of 186kg of carbon disulfide .
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