Wax extraction automatic filter, backwashing system of Ft synthetic pulp bed reactor

Abstract

The invention discloses a wax extraction automatic filtration and backwashing system used for Fischer-Tropsch synthesis slurry reactor, comprising a filter unit and a backwashing unit, wherein, the filter unit comprises a slurry buffer tank, a wax device external filter (30), a coarse wave outcome buffer tank (4), a wax fine filter (5) and a wax product buffer tank (6); and the backwashing systemcomprises a washing wax pump (7) and a backwashing wax buffer tank (8). The wax extraction automatic filtration and backwashing system has the advantages of reasonable structure, short flow, low energy dissipation, avoiding the blocking or reverse flowing, reducing the damage of catalyst grains, and achieving the stable and continuous running of the Fischer-Tropsch synthesis slurry reactor.

Description

technical field [0001] The invention relates to an automatic wax extraction filtering and backwashing system of a continuously operating slurry bed reactor, which is suitable for the Fischer-Tropsch synthesis reaction process of synthesis gas. Background technique [0002] Fischer-Tropsch synthesis refers to synthesis gas (H 2 +CO) is a reaction process for synthesizing hydrocarbon liquid fuels and high value-added chemicals under catalyst, suitable reaction temperature and reaction pressure. Coal or natural gas is transformed into high-quality liquid fuels and high value-added chemicals through F-T synthesis reaction, which not only uses coal resources reasonably, efficiently and cleanly, but also makes up for the relative shortage of petroleum resources, making Fischer-Tropsch synthesis technology researched and developed by various countries Institutions and industries attach great importance to it. [0003] The Fischer-Tropsch synthesis process is a strongly exothermic...

AI Technical Summary

Problems solved by technology

However, the process route is long, and the transmission of the suspension drawn from the slurry bed reactor and its return to the slurry bed reactor, as well as the power of the filtered catalyst slurry are all provided by pumps, which is very easy in this process. Causes damage to catalyst particles, increases the difficulty of liquid-solid separation and the load of gas-solid separation, and requires regular replenishment of the catalyst in the reactor, thus causing inconvenience to the long-term operation of the reactor

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