Institute of Chemistry, Saint Petersburg State University, Universitetskiy pr. 26, 198504 Saint Petersburg, Russia.
N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky pr. 47, 119991 Moscow, Russia.
Int J Mol Sci. 2022 Oct 5;23(19):11828. doi: 10.3390/ijms231911828.
A general possibility of a sustainable cycle for carbon return to high-value-added products is discussed by turning wastes into acetylene. Pyrolyzed solid municipal wastes, pyrolyzed used cationic exchangers, and other waste carbon sources were studied in view of the design of a sustainable cycle for producing calcium carbide and acetylene. The yields of calcium carbide from carbon wastes were as high as those from industrial fossil raw materials (coke, charcoal, etc.). Conversion of carbon-containing wastes to calcium carbide provides an excellent opportunity to make acetylene, which is directly compatible with modern industry. Overall, the process returns carbon-containing wastes back to sustainable cycles to produce high-value-added products involving only C-type molecules (calcium carbide and acetylene). Calcium carbide may be stored and transported, and on-demand acetylene generation is easy to realize. Upon incorporation into the waste processing route, calcium carbide may be an efficient carbon reservoir for quick industrial uptake.
讨论了将废物转化为乙炔，使碳返回高附加值产品的可持续循环的一般可能性。从设计生产碳化钙和乙炔的可持续循环的角度，研究了热解固体城市废物、热解用过的阳离子交换剂和其他废碳源。从碳废料中获得的碳化钙产率与工业化石原料（焦炭、木炭等）相当。将含碳废物转化为碳化钙为生产直接与现代工业兼容的乙炔提供了极好的机会。总的来说，该工艺将含碳废物返回可持续循环，以生产仅涉及 C 型分子（碳化钙和乙炔）的高附加值产品。碳化钙可以储存和运输，按需生成乙炔也很容易实现。碳化钙作为一种有效的碳储存库，可快速被工业采用，纳入废物处理路线中。
