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 |