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PREPARATION AND CATALYTIC PROPERTY OF SUPPORTED H_3PW_(12)O_(40)

Haiyan Wang

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Abstract

Active carbon supported H 3PW 12 O 40 (PW 12 )solid acid catalysts are prepared and used in the etherification of light FCC gasoline with methanol.The effects of preparation conditions and the PW 12 loading on the activities of PW 12 (40)/C catalysts are studied.The results showed that the reflux time and the activating temperature influence the activity of the catalyst.As the loading of PW 12 on active carbon is lower, the reaction of PW 12 with the hydroxyl on the surface of active carbon makes the activity of the catalyst decrease.With the increase of loading of PW 12 on active carbon, the activities of the catalysts increase.Using PW 12 (40)/C as catalyst,under the conditions of reaction temperature 75?℃,pressure 0.8?MPa,molar ratio of methanol with tertiary carbonic olefins 1.0,and hourly space velocity 1.0 h -1 ,the ethers content in etherified light gasoline is up to 13.86%.

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Active carbon supported H 3PW 12 O 40 (PW 12 )solid acid catalysts are prepared and used in the etherification of light FCC gasoline with methanol.The effects of preparation conditions and the PW 12 loading on the activities of PW 12 (40)/C catalysts are studied.The results showed that the reflux time and the activating temperature influence the activity of the catalyst.As the loading of PW 12 on active carbon is lower, the reaction of PW 12 with the hydroxyl on the surface of active carbon makes the activity of the catalyst decrease.With the increase of loading of PW 12 on active carbon, the activities of the catalysts increase.Using PW 12 (40)/C as catalyst,under the conditions of reaction temperature 75?℃,pressure 0.8?MPa,molar ratio of methanol with tertiary carbonic olefins 1.0,and hourly space velocity 1.0 h -1 ,the ethers content in etherified light gasoline is up to 13.86%.

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Available abstract

Active carbon supported H 3PW 12 O 40 (PW 12 )solid acid catalysts are prepared and used in the etherification of light FCC gasoline with methanol.The effects of preparation conditions and the PW 12 loading on the activities of PW 12 (40)/C catalysts are studied.The results showed that the reflux time and the activating temperature influence the activity of the catalyst.As the loading of PW 12 on active carbon is lower, the reaction of PW 12 with the hydroxyl on the surface of active carbon makes the activity of the catalyst decrease.With the increase of loading of PW 12 on active carbon, the activities of the catalysts increase.Using PW 12 (40)/C as catalyst,under the conditions of reaction temperature 75?℃,pressure 0.8?MPa,molar ratio of methanol with tertiary carbonic olefins 1.0,and hourly space velocity 1.0 h -1 ,the ethers content in etherified light gasoline is up to 13.86%.

Key concepts: Catalysis, Methanol, Gasoline, Chemistry, Space velocity, Carbon fibers, Active carbon, Nuclear chemistry

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