公开(公告)号：US4801438A

公开(公告)日：1989-01-31

申请号：US62018

申请日：1987-06-15

Applicant: Mitri S. Najjar ,  Roger J. Corbeels

Inventor： Mitri S. Najjar ,  Roger J. Corbeels

IPC: C10J3/46 ,  B01D53/06 ,  C10K1/18 ,  C10K1/26

CPC classification number: C10J3/463 ,  C10J1/16 ,  C10J3/466 ,  C10K1/004 ,  C01B2203/0255 ,  C01B2203/0415 ,  C01B2203/045 ,  C01B2203/0465 ,  C01B2203/0485 ,  C01B2203/0877 ,  C01B2203/0883 ,  C01B2203/0894 ,  C01B2203/127 ,  C01B2203/146 ,  C01B2203/148 ,  C10J2300/0996 ,  C10J2300/1223 ,  C10J2300/1846

Abstract: A process for the simultaneous partial oxidation and desulfurization of an ash-containing solid carbonaceous fuel comprising (basis solid fuel) 0.2 to 6.0 wt. % sulfur and 0.1 to 30 wt. % of silicate compounds for the production of gaseous mixtures comprising H.sub.2 and CO and entrained molten slag. In the process, the solid carbonaceous fuel and first and second types of supplemental calcium-containing materials are reacted by partial oxidation in the reaction zone of a free-flow unobstructed down-flowing vertical refractory lined gas generator with a controlled amount of free-oxygen containing gas and a temperature moderator so that an equilibrium oxygen concentration is provided in the gas phase in the reaction zone having a partial pressure which is less than about 10.sup.-9 atmospheres. The partial oxidation and desulfurization reactions take place simultaneously at a temperature above about 1900.degree. F. and about 10.degree. to 100.degree. F. above the fluid temperature of the slag at an increased thermal efficiency. The sulfur in the solid carbonaceous fuel in the reaction zone is converted into calcium and iron sulfide particulate matter which leaves the reaction zone along with the silicates of calcium and iron in the molten ash that is entrained in the hot raw effluent gas stream. Additional desulfurization in a fluidized bed containing calcium-containing material in admixture with carbon-containing material may be used to reduce the amount of H.sub.2 S and COS in the effluent gas stream to less than about 0.05 volume %.

Abstract translation: 含有固体含碳燃料的同时部分氧化和脱硫的方法，包括（基础固体燃料）0.2至6.0重量％ ％硫和0.1至30wt。 用于生产包含H 2和CO以及夹带的熔渣的气态混合物的硅酸盐化合物的％。 在此过程中，固体碳质燃料和第一种和第二种补充含钙材料在自由流动无阻碍下垂垂直耐火材料衬里气体发生器的反应区域中通过部分氧化反应，受控量的游离氧气 含有气体和温度调节剂，使得在分压小于约10-9大气压的反应区中的气相中提供平衡氧浓度。 部分氧化和脱硫反应在提高的热效率的同时在高于约1900°F和高于炉渣流体温度约10°至100°F的温度下进行。 反应区中固体碳质燃料中的硫被转化成钙和硫化铁颗粒物质，它们随着夹带在热的原始流出物气流中的熔融灰中与钙和铁的硅酸盐一起离开反应区。 含钙材料与含碳材料混合的流化床中的额外脱硫可用于将流出气流中的H 2 S和COS的量减少到小于约0.05体积％。