Cleaning and regeneration agent and cleaning and regeneration method adopting same for filter element

Abstract

The invention provides a cleaning and regeneration agent. The cleaning and regeneration agent comprises a passivation cleaning agent and a rinsing cleaning agent, wherein the passivation cleaning agent is prepared from a wetting agent, a penetrant, an oil dispersant, an oxidizing agent, a corrosion inhibitor and water; the rinsing cleaning agent is prepared from a chelating agent, a surfactant, an auxiliary, the corrosion inhibitor and the water. According to the cleaning and regeneration agent, a filter element is soaked in the passivation cleaning agent and the rinsing cleaning agent sequentially, so that attachments on inner and outer surfaces of the filter element can be removed effectively, the components are good in water solubility, low in toxicity and free of environmental pollution, and the cleaning and regeneration agent is safe and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a cleaning and regeneration agent. Background technique [0002] The Fischer-Tropsch reactor is one of the key equipment in the coal-to-oil process. A Fischer-Tropsch filter element is installed in the Fischer-Tropsch reactor to realize the separation of catalyst and product. Fischer-Tropsch filter elements are mostly made of stainless steel, with a large amount of use. There are many links in design, manufacture, installation, and use management, which have a great impact on the safety and stable production of the device. After a period of operation, the inner and outer surfaces of the Fischer-Tropsch filter element will adhere to a large amount of attachments such as carbon deposits, catalyst particles, and colloids. to hidden dangers. In addition, the Fischer-Tropsch filter element is expensive, and if it is scrapped directly, it will greatly increase the producti...

AI Technical Summary

Problems solved by technology

Among them, mechanical methods (such as manual shoveling, grinding, sandblasting, etc.) can only remove the dirt on the surface of the filter element, but cannot effectively remove the dirt inside the filter element.

The chemical method is currently the most widely used method in industry, but the traditional cleaning formula cannot effectively remove the blockage of the filter element, and it is easy to cause damage to the filter element body, and even cause harm to the environment and operators