Novel demercuration catalyst

Abstract

Disclosed is a novel demercuration catalyst. As mercury has extremely high accumulation performance in the environment and in organisms, it has very strong toxicity for mankind and wild animals and plants even the concentration is very low. In recent years, mercury is considered as another pollution problem in the world. Present existing demercuration catalysts have disadvantages of poor anti-poisoning capability and high cost, and are difficult to realize industrialization. In order overcome these advantages, a novel demercuration catalyst is invented. The product is prepared from TOx (T is Cu, Fe and V) and ROy (R is La and Ce) with the addition of titanium dioxide pillared montmorillonite. The invention belongs to the technical field of separation. The demercuration catalyst can be used for elemental mercury removal from flue gas. The invention is characterized in that the catalyst has high mercury adsorption capability and mercury oxidation catalysis capability. The catalyst has very strong anti-poisoning capability.

Description

technical field

[0001] The invention belongs to the technical field of separation and can be used for removing elemental mercury from flue gas. Background technique

[0002] In recent years, people have noticed that harmful metal elements produced during coal combustion have a greater impact on the environment, among which mercury is one of the most harmful elements. Because mercury has a particularly high accumulation in the environment and in organisms, it is quite toxic to humans and wildlife even at very low concentrations. The U.S. Environmental Protection Agency defines mercury as a highly hazardous Elements. Coal-fired boilers are the main source of man-made emissions of mercury pollution in the environment (according to data from the U.S. Environmental Protection Agency, about 31% of mercury in the atmosphere comes from coal combustion in coal-fired power plants, and man-made sources of mercury emissions rank first [1] ), which has attracted widespread attention ar...