Desulfurization of coal
阅读：689发布：2023-04-05
专利汇可以提供Desulfurization of coal专利检索，专利查询，专利分析的服务。并且A method for desulfurizing coal by reacting sulfur-containing bituminous coal with hydrogen in the presence of a hydrogen sulfide ''''getter'''' at a temperature about 600-800* F.，下面是Desulfurization of coal专利的具体信息内容。
2. Method of claim 1 wherein said solid getter material is an alkaline earth metal oxide or a compound of alkaline earth metal oxides.
3. Method of claim 2 wherein said solid getter material is calcined dolomite.
4. Method of claim 1 wherein coarse particles of solid getter material are dropped through a fluidized bed of coal particles, thereby keeping the solid material and coal particles separate.
5. Method of claim 1 wherein said fluidized bed is a fluidized packed bed with small coal particles being fluidized in the interstices of a fixed bed of larger solid getter material particles.
6. Method of claim 1 which includes the added steps of: a. regenerating getter material from said nongaseous sulfide and recovering a sulfur-containing byproduct, and b. recycling said regenerated getter material to said mixing step.
7. Method of claim 6 wherein said solid getter material is an alkaline earth metal oxide or a compound of alkaline earth metal oxides, and wherein said regeneration includes the steps of: a. reacting said nongaseous sulfide with carbon dioxide and water to produce hydrogen sulfide-rich gas and regenerated solid getter material, b. recovering elemental sulfur by oxidation of said hydrogen sulfide-rich gas, c. calcining said regenerated solid getter material to produce oxide and carbon dioxide, and d. cycling said carbon dioxide to said step of reacting said nongaseous sulfide.
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