Activation apparatus and process for continuously preparing adsorbing agent of natural gas

Abstract

The invention is an activating reaction device to continuously prepare natural gas absorbent as well its technique, mainly composed of reaction kiln body, burning system, temperature control system, smoke-wind system and raw material feeding system. The reaction kiln body includes preheating, constant temperature and cooling segments; the reacting mass continuously pushes the mobile kiln vehicle installed with storage box bowl into preheating segment by pusher mechanism, raises the temperature from normal temperature to 700-900 deg.C in preheating segment, here makes constant temperature reaction under this temperature, and then lowers the temperature below 80 deg.C in cooling segment. The whole activating reaction has strong continuity, and the pre-activating reaction and high temperature activating reaction are once completed in the kiln. The energy consumption is low and it can effectively prevent the strong corrosion on the device by the reacting mass.

Description

technical field [0001] The invention relates to high-temperature activation equipment and technology for preparing natural gas adsorbent, in particular to a process method and equipment capable of continuous activation in the preparation of adsorbent, belonging to the technical field of petrochemical industry. Background technique [0002] In recent years, the adsorption technology of natural gas has been paid more and more attention. This technology uses adsorbents with high specific surface to store and transport natural gas at medium and low pressures. Compared with the conventionally used compressed natural gas, the storage pressure is low, the equipment investment is small, and the operation safety is high; but how to prepare high-performance Adsorbents that can meet the requirements of industrial production are one of the key issues that this technology urgently needs to solve. At present, some methods for preparing natural gas adsorbents have been disclosed in the pr...

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Problems solved by technology

For example, Chinese patent literature discloses a "rich microporous carbonaceous adsorbent and preparation method thereof" (application number: 01141565.7), which uses petroleum coke, lignin or walnut shells as raw materials, and uses potassium hydroxide as an activator. A natural gas adsorbent with better performance is prepared by preactivating in a low-temperature furnace (150-550°C) and then activated in a high-temperature furnace (700--900°C); however, this preparation technology lacks scale Chemical continuous preparation means

At the same time, due to the need to prevent spontaneous combustion of petroleum coke in contact with air during the activation process, it is necessary to solve the sealing problem of the activation equipment; on the other hand, because KOH is used as the activator, it has strong alkali characteristics and strong corrosion. It is required that the equipment must also meet the needs of high temperature and alkali corrosion resistance, which leads to a large investment in the equipment used, the production process is not easy to continue, and it is difficult to meet the requirements of industrial production, which limits the further promotion and application of this technology to some extent.

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