公开(公告)号：US5925326A

公开(公告)日：1999-07-20

申请号：US925445

申请日：1997-09-08

申请人： Akhilesh Kapoor ,  Carl Schatz

发明人： Akhilesh Kapoor ,  Carl Schatz

IPC分类号： B01D46/02 ,  B01D53/50 ,  B01D53/75 ,  B01D53/86 ,  B01D53/94 ,  B01J21/06 ,  B01J23/22 ,  B01J23/30 ,  B01J23/40 ,  B01J23/64 ,  B01J29/06 ,  C01B17/00 ,  C01B17/96 ,  C01B32/50 ,  C03B5/04 ,  C03B5/235 ,  F25J3/08 ,  B01D47/00 ,  B01D50/00 ,  B01J8/02 ,  B01J8/00

CPC分类号： C01B17/00 ,  B01D53/501 ,  B01D53/75 ,  B01D53/8625 ,  C01B17/96 ,  C01B31/20 ,  C03B5/235 ,  B01D2251/2062 ,  B01D2251/606 ,  Y02P20/152 ,  Y02P40/55 ,  Y02P40/59

摘要： Food grade carbon dioxide is produced from oxyfuel fired glassmaking furnace waste gas by a series of steps including quenching the waste gas with aqueous quench liquid, dry-filtering sulfur salt from the gas, scrubbing the filtered gas with aqueous carbonate to convert the remaining sulfur dioxide to an aqueous sulfite suspension and using the suspension as part or all of the above-mentioned aqueous quench liquid, contacting the sulfur dioxide-free waste gas with ammonia in the presence of a catalyst that selectively converts nitrogen oxides to nitrogen, thereby removing substantially all nitrogen oxides from the waste gas, and distilling the resulting waste gas stream thereby producing high purity liquid carbon dioxide and producing an off-gas, which is recycled to the furnace as fuel.

摘要翻译： 食品级二氧化碳由氧燃烧玻璃制造炉废气通过一系列步骤制备，包括用水淬火液体淬火废气，从气体中干燥硫盐，用碳酸水溶液洗涤过滤气体以转化剩余的二氧化硫 向亚硫酸氢盐水溶液悬浮液中，并且使用该悬浮液作为部分或全部上述水性骤冷液体，在选择性地将氮氧化物转化为氮气的催化剂存在下使无二氧化硫废气与氨接触，从而基本上除去 从废气中回收氮氧化物，并蒸馏生成的废气流，从而产生高纯度液态二氧化碳，并产生废气，废气作为燃料再循环到炉中。

公开(公告)号：US5743929A

公开(公告)日：1998-04-28

申请号：US518380

申请日：1995-08-23

申请人： Akhilesh Kapoor ,  Carl Schatz

发明人： Akhilesh Kapoor ,  Carl Schatz

IPC分类号： B01D46/02 ,  B01D53/50 ,  B01D53/75 ,  B01D53/86 ,  B01D53/94 ,  B01J21/06 ,  B01J23/22 ,  B01J23/30 ,  B01J23/40 ,  B01J23/64 ,  B01J29/06 ,  C01B17/00 ,  C01B17/96 ,  C01B32/50 ,  C03B5/04 ,  C03B5/235 ,  F25J3/08 ,  C03B5/237

CPC分类号： C01B17/00 ,  B01D53/501 ,  B01D53/75 ,  B01D53/8625 ,  C01B17/96 ,  C01B31/20 ,  C03B5/235 ,  B01D2251/2062 ,  B01D2251/606 ,  Y02P20/152 ,  Y02P40/55 ,  Y02P40/59

摘要： Food grade carbon dioxide is produced from oxyfuel fired glassmaking furnace waste gas by a series of steps including quenching the waste gas with aqueous quench liquid, dry-filtering sulfur salt from the gas, scrubbing the filtered gas with aqueous carbonate to convert the remaining sulfur dioxide to an aqueous sulfite suspension and using the suspension as part or all of the above-mentioned aqueous quench liquid, contacting the sulfur dioxide-free waste gas with ammonia in the presence of a catalyst that selectively converts nitrogen oxides to nitrogen, thereby removing substantially all nitrogen oxides from the waste gas, and distilling the resulting waste gas stream thereby producing high purity liquid carbon dioxide and producing an off-gas, which is recycled to the furnace as fuel.