公开(公告)号：US20040237634A1

公开(公告)日：2004-12-02

申请号：US10821895

申请日：2004-04-12

申请人： CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY ,  NIPPON INSTRUMENTS CORPORATION

发明人： Hisao Makino ,  Hiromi Shirai ,  Naoki Noda ,  Koji Tanida ,  Munehiro Hoshino

IPC分类号： G01N030/00

CPC分类号： B01D53/8665 ,  G01N33/0045

摘要： To provide a method of and an apparatus for continuously measuring elemental mercury and bivalent mercury both contained in a gaseous medium fractionally with a simplified structure, the concentration of a total mercury (Metallic MercurynullBivalent Mercury) and the concentration of elemental mercury contained in gases are measured continuously and fractionally. In the practice of this mercury measuring method, a first column 1, filled with a first fixed catalyst, and a second column 11, filled with a second fixed catalyst, are fluid connected in parallel relation to each other. The gases G are introduced into those first and second columns 1 and 11. In the first column 1, the first fixed catalyst collects and removes the bivalent mercury, but passes only the elemental mercury in the gases through the first column. In the second column 11, the second fixed catalyst reduces the bivalent mercury into elemental mercury and passes through the second column 11 the elemental mercury in the gases containing the elemental mercury into which the bivalent mercury has been reduced. The concentration of the elemental mercury in the gases, from which the bivalent mercury has been removed after passage thereof through the first column 1 and, also, the concentration of the elemental mercury in the gases into which the bivalent mercury has been reduced after passage thereof through the second column 11 are measured as the concentration of the elemental mercury contained in sampled gases and as the concentration of the total mercury in the sampled gases, respectively by utilization of first and second mercury measuring instruments.

摘要翻译： 为了提供一种用于连续测量气态介质中的元素汞和二价汞的方法和装置，其分数为简单的结构，总汞（金属汞+二价汞）的浓度和气体中所含的元素汞浓度 是连续和分数地测量的。 在这种汞测量方法的实践中，填充有第一固定催化剂的第一柱1和填充有第二固定催化剂的第二柱11彼此平行地连接。 气体G被引入第一和第二塔1和11中。在第一塔1中，第一固定催化剂收集并除去二价汞，但只通过第一塔中的气体中的元素汞。 在第二列11中，第二固定催化剂将二价汞还原为元素汞，并且通过第二塔11将含有二价汞的元素汞的气体中的元素汞还原。 二价汞在通过第一塔1后被除去的气体中的元素汞的浓度以及二价汞在通过后已经减少的气体中的元素汞的浓度 通过第二列11分别作为采样气体中所含的元素汞的浓度和采样气体中的总汞的浓度分别用第一和第二汞测量仪器来测量。