发明名称 Dry processes, apparatus, compositions and systems for reducing sulfur oxides and HCI
摘要 Dry processes, apparatus, compositions and systems are provided for reducing emissions of sulfur oxides, and sulfur dioxide in particular, and/or HCl in a process employing a combination of a dolomite hydrate sorbent and a sorbent doping agent administered to achieve coverage of a three-dimensional cross section of a passage carrying SOx and/or HCl —containing gases with a short but effective residence time at a temperature effective to provide significant sulfur dioxide and/or HCl reductions with high rates of reaction and sorbent utilization. The once-through, dry process can advantageously introduce the sorbent and sorbent doping agent dry or preferably as a slurry to enable uniform treatment. Preferred sorbent doping agents include water-soluble or water-dispersible copper and/or iron compositions which can be heated to an active form in situ by the flue gases being treated.
申请公布号 US8916120(B2) 申请公布日期 2014.12.23
申请号 US201313854361 申请日期 2013.04.01
申请人 Fuel Tech, Inc. 发明人 Smyrniotis Christopher R.;Schulz Kent W.;Rivera Emelito P.;Fang Mingming;Saratovsky Ian
分类号 B01D53/50;B01D53/68;B01D53/74;B01J20/22;B01D53/10;B01J20/04;B01D53/80 主分类号 B01D53/50
代理机构 代理人 Carvis Thaddius J.
主权项 1. A process for reducing emissions of SOx and/or HCl from a combustor, comprising: identifying locations within a combustor for feeding a dolomite hydrate sorbent and a sorbent doping agent; determining the physical form and injection parameters for the sorbent and the sorbent doping agent; injecting both the dolomite hydrate sorbent and the sorbent doping agent with water into combustion gases containing SOx and/or HCl, the introduction being under conditions effective to capture sulfur oxides and/or HCl with the sorbent at a greater rate than achievable by the same sorbent without the sorbent doping agent; and collecting the spent sorbent.
地址 Warrenville IL US