• 专利标题:   Removal of chloramines from chloramine-containing fluid solutions or streams by contacting solutions or streams with activated carbon having in graphene structure of carbon, specific amount of aromatic nitrogen species.
  • 专利号:   US2004124152-A1
  • 发明人:   BAKER F S
  • 专利权人:   MEADWESTVACO CORP
  • 国际专利分类:   C02F001/28
  • 专利详细信息:   US2004124152-A1 01 Jul 2004 C02F-001/28 200447 Pages: 18 English
  • 申请详细信息:   US2004124152-A1 US736652 16 Dec 2003
  • 优先权号:   US141158, US736652

▎ 摘  要

NOVELTY - Chloramines are removed from chloramine-containing fluid solutions or streams by contacting the solutions or streams with an activated carbon having in the graphene structure of the carbon, 0.01-10 wt.% of aromatic nitrogen species. USE - The invention is for removal of chloramines from chloramine-containing fluid solutions or streams, which are aqueous (claimed), or from drinking water. ADVANTAGE - The invention provides a catalytic activated carbon that exhibits high performance for chloramine removal from water, yet possesses relatively low activity for hydrogen peroxide decomposition compared to prior art carbons. DESCRIPTION OF DRAWING(S) - The figure is a graphical representation of chloramine-reduction performance of inventive carbon products and prior art carbon product on a gravimetric basis.