LNG Suppression Foam Stabilized By Zirconium Phosphate Nanoplatelets
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In this work, a zirconium phosphate based universal foam stabilizer was developed to stabilize and improve performance of firefighting foam and high expansion liquid natural gas (LNG) suppression foam. With the world’s increasing demand for natural gas, a large quantity of natural gas is transported in liquid natural gas form. The safety issues related to LNG are of critical concern in LNG process safety. High expansion LNG suppression foam was developed to mitigate accidental LNG spillage. Particle stabilized Pickering emulsion, which mainly the mixture of oil and water, was studied in detail for application in the chemical and oil industries. The advantage of the particle surfactant compared to the conventional surfactant is well understood. A particle stabilized gas-liquid mixture, Pickering foam, is still an emerging topic in soft matter. Pickering foam is studied in this work. Different foam formulas were mixed with propylamine exfoliated ZrP nanoplatelets. Foam stabilities were tested under different conditions, including high salinity and extreme temperatures. We found reduced drainage rate and extra surface stability induced by platelets were two factors which contributed to the excellent stability of our Pickering foam. LN2 was used to simulate the evaporation process of LNG suppressed by different foam formulas. Experimental results proved LN2 evaporation rate in the ZrP-PA added foam was modestly lower than conventional foam.
Zhang, Lecheng (2015). LNG Suppression Foam Stabilized By Zirconium Phosphate Nanoplatelets. Master's thesis, Texas A&M University. Available electronically from