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Generally, with the increasing of temperature the solubility of H2S and/or CO2 in the water decreases. So there are comparatively more H2S and CO2 dissolved in the solution at 90¡ãC, which results in the pH at 90¡ãC is lower than that at other temperatures and the dissolution of anodic ** steel is accelerated¡££¨ÊÔÑéÌõ¼þÒ»¹²90¡ãC¡¢110¡ãC¡¢130¡ãC¡¢150¡ãCËĸöζȵ㡣ÎÒµÄÒâ˼ÊÇζÈÔ½¸ß£¬ÈÜÈëË®µÄH2S and/or CO2 ¾ÍÔ½ÉÙ£¬PHÖµ¾ÍÔ½¸ß¡£ËùÒÔÔÚËĸöζÈÖУ¬90¡ãCζÈ×îµÍ£¬PHÖµ¾Í×îС£¬Òò´ËÄܼÓËÙ**¸ÖµÄ¸¯Ê´¡££©

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chgyhit

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fuid(½ð±Ò+5): ¶àл»Ø¸´ 2011-11-28 21:34:35
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2Â¥: Originally posted by chgyhit at 2011-11-27 20:35:32:
Éó¸åÈ˵ÄÒâ˼ÊÇÈÃÄãÿ¸öζȶ¼²âÊÔÒ»ÏÂPHÖµ£¬Äã˵90¶ÈʱPH×îµÍÊDz»¹ÜÓõģ¬ÒªÓÃÊý¾Ý˵»°

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3Â¥2011-11-28 20:23:32
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chgyhit

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Õâ¸öʶù ÎÒ˵¾Í²»ºÃʹÁË£¬»¹ÊǺúÃÏëÏëÔõô»Ø´ðÉó¸åÈ˵ÄÎÊÌâ°É
4Â¥2011-11-28 21:20:41
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fuid(½ð±Ò+3): ¶àл£¬Ê£ÏÂÄÜ·¢·ÅµÄ½ð±Ò²»¶àÁË 2011-11-29 20:26:58
You can analyze the corrosion process of steel in H2S/CO2 solution with some literature reports. What influences the corrosion process of steel in H2S/CO2 solution? temperature, pH, solubility of H2S/CO2, film on steel  and so on. You will get some reports/publication about the influence of pH, influence of temperature on the solubility of H2S/CO2, then explain a possible conclusion from literature report for your defense.   

Professor Srdjan Nesic at Ohio university (the Institute for Corrosion and Multiphase Technology) is No  #1 in corrosion of oil and gas industry , they also use lots of GAMRY instruments for their researches there.

http://www.corrosioncenter.ohiou.edu/projects/

you can find more reports from their publications in order to explain your results.
5Â¥2011-11-29 05:09:58
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tommy7749

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fuid(½ð±Ò+2): ¶àл£¬Ê£ÏÂÄÜ·¢·ÅµÄ½ð±Ò²»¶àÁË 2011-11-29 20:27:06
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