Novel high-temperature dechlorinating agent and preparation method thereof

Abstract

The invention discloses a novel high-temperature dechlorinating agent and a preparation method thereof. The dechlorinating agent is filled in a fixed bed reactor, hydrogen chloride in regenerated flue gas is purified and removed through a solid dechlorinating method, and the dechlorinating agent is composed of an active component, a carrier, a pore-forming agent, a binder and a reinforcing agent, and specifically comprises the following components in parts by weight: 30-55 parts of the active component, 20-30 parts of the binder, 10-15 parts of the carrier, 5-10 parts of the pore-forming agent and 2-5 parts of the reinforcing agent. Through the use of the carrier and the binder, the prepared high-temperature dechlorinating agent has relatively high strength, relatively high water resistance, relatively high argillization resistance, relatively high temperature resistance, relatively high oxygen resistance and relatively high CO2 carbonation resistance; the penetrating chlorine capacity of the high-temperature dechlorinating agent reaches 40%, rapid loss of active components during use of the dechlorinating agent is reduced, harm and influence of loss of the active components of the dechlorinating agent on production of a reforming catalyst are reduced, and the dechlorinating agent which is stable to develop, high in chlorine capacity and long in service life is achieved.

Description

technical field [0001] The invention belongs to the technical field of dechlorination agents, and relates to a high-temperature dechlorination agent and a preparation method thereof, in particular to a novel high-temperature dechlorination agent and a preparation method thereof. Background technique [0002] During the catalytic reforming reaction, with the prolongation of the reaction time, the carbon area on the surface of the catalyst increases, and the platinum grains aggregate, resulting in a decrease in activity and requires regeneration to restore its activity. The continuous reforming unit is equipped with a continuous catalyst regeneration system, and the deactivated catalyst after the reaction can be regenerated in time to keep the catalyst highly active. During the operation of the catalytic reforming unit, the chlorine on the catalyst will gradually lose. In order to maintain a certain acidity of the catalyst, after the catalyst is regenerated and burnt, it must ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems caused by the above dechlorination methods, a high-temperature dechlorination agent can be used to dechlorinate the regenerated flue gas. However, the dechlorination agents used at home and abroad are generally concentrated in the normal temperature or low temperature range, which leads to , its effect is poor and cannot meet the needs of use, and the performance of the active component is also a key factor determining the life of the dechlorination agent, and the loss of the active component of the current dechlorination agent will cause harm and influence on the reforming catalyst