Cradle to Gate
Identity ID
c651d7bf-e7b3-47b8-81ff-217027694b7d
Materials
Associated ID
7600a5f5-029f-4ce7-b54b-741095b14f7d
Included activities starts
Included activities ends
Description
Carbon disulfide is mainly used for manufacturing rayon, insecticides, accelerators, etc., and is also used in industrial fields such as pesticides, rubber and viscose fibre; Carbon disulfide is modelled as a pure substance; when modelling this substance, the user is required to add a solvent of their choice in the model. The dataset includes the main raw and auxiliary materials, energy, atmospheric emissions and wastewater of the production process, in which the preliminary treatment of wastewater in the utility/auxiliary processes and the waste-gas treatment process are included within the dataset boundary, while infrastructure such as the manufacture of production equipment and plant construction is not included within the dataset boundary; the data inventory is formed by merging data from multiple sources; the production activities of this product include natural gas purification, liquid-sulfur preparation, synthesis, sulfur production and other process steps. Steam is a by-product of this production process.
Activity Description
The production activities of this product include natural gas purification, liquid sulfur preparation, synthesis, sulfur production and other processes.
Process Description
Carbon disulfide has the chemical formula CS2 and CAS No. 75-15-0. It is a colorless liquid and a common solvent. Pure carbon disulfide has a sweet, ether-like odor. Its boiling point is 46.3°C, its freezing point is approximately −111.6°C, its relative vapor density is approximately 2.64 (air = 1), and its relative liquid density is approximately 1.26 (water = 1). It is extremely flammable and can readily ignite or explode when exposed to heat, sparks, flames, or oxidants. Carbon disulfide is mainly used to manufacture rayon, insecticides, accelerators, and other products, and is also used in the pesticide, rubber, and viscose-fiber industries.
Time period
2017
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The production of carbon disulfide from natural gas is a new clean technology. Compared with the traditional coke method, it has the advantages of low energy consumption and less pollution. It is the upgrading direction of the domestic carbon disulfide industry. Its market share is growing rapidly with the tightening of environmental protection policies. This data set represents the mainstream technology: producing carbon disulfide through methane sulfidation. Specifically: natural gas is first purified to meet production requirements; the sulfur production section filters purchased liquid sulfur to remove impurities, and supplements solid sulfur when the supply of liquid sulfur is insufficient; the synthesis section reacts natural gas with sulfur and refines it to obtain the product carbon disulfide; and burns the generated hydrogen sulfide gas in the sulfur furnace to convert it into sulfur and reuses it for production; the process of absorbing the tail gas generated by combustion to produce sulfuric acid is not considered. The core reaction chemical equation of this process is: CH4 + 4S → CS2 + 2H2S; 2H2S + O2 → 2S + 2H2O.