Solid antifoaming agent and preparation process thereof

Abstract

The invention discloses a solid antifoaming agent and a preparation process thereof. The solid antifoaming agent comprises, by weight, 20-40 parts of dimethicone, 5-15 parts of silicon dioxide, 10-30 parts of span-60, 5-15 parts of polysorbate 80, 5-15 parts of polyethylene glycol (PEG) and 10-30 parts of paraffin wax. The preparation process includes the following steps: preparing materials, evenly mixing the dimethicone, the silicon dioxide, the span-60, the polysorbate 80, the PEG and the paraffin wax; heating the evenly mixed materials to 70-90 DEG C and standing for 1.5-2.5 hours at the temperature; discharging, discharging and cooling all the melted materials; and forming, pressing the materials into a round rod shape through a forming machine. The solid antifoaming agent and the preparation process thereof have the advantages that an automatic adjusting function is provided; packaging and transportation costs are reduced; the agent is arranged on a gas piping, so that the production is saved; and the guarantee period is long.

Description

technical field [0001] The invention relates to a defoamer used in a natural gas well transmission pipeline, in particular to a solid defoamer and a preparation process thereof. Background technique [0002] At present, the defoamers used in natural gas wells are all traditional liquid defoamers. After diluting the defoamer in a certain proportion with a large storage tank, pump it into the gas pipeline with a high-pressure injection pump to eliminate the foam in the pipeline. . Due to the discontinuity of liquid production in natural gas wells, sometimes the foam produced may be rich, and sometimes there is no foam produced, and because the gas pipeline is a sealed system, its internal conditions cannot be observed from the surface, in order not to affect Defoaming process, the traditional liquid defoaming agent is added continuously for 24 hours. Therefore, when the gas well does not produce liquid, the defoamer is also injected, resulting in the waste of the defoamer; i...

AI Technical Summary

Problems solved by technology

Due to the discontinuity of liquid production in natural gas wells, sometimes the foam produced may be rich, and sometimes there is no foam produced, and because the gas pipeline is a sealed system, its internal conditions cannot be observed from the surface, in order not to affect Defoaming process, traditional liquid defoaming agents are added continuously for 24 hours

Therefore, when the gas well does not produce liquid, the defoamer is also injected, resulting in the waste of the defoamer; in addition, when the natural gas well produces a large amount of liquid and rich foam, the filling amount of the defoamer is not increased in time , resulting in defoaming not in time, leading to the occurrence of foam tower overturning accidents

[0003] In terms of packaging and transportation, since the liquid defoamer is in a liquid state, it needs to be packaged in plastic barrels and other containers. The packaging cost is relatively high, and it cannot be squeezed during transportation, otherwise there will be a risk of leakage and high transportation costs.

[0004] In addition, the liquid defoamer needs to be diluted every day, and it is pumped in by a high-pressure pump, which increases the work of workers and increases the input cost of filling.

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