Scale inhibitor composition for gas turbine
A technology for flue gas turbines and antiscalants, which is applied in the directions of treatment equipment corrosion/scaling inhibition, petroleum industry, cracking, etc., which can solve the problems affecting the economic benefits and safety production of oil refining enterprises, and achieve the purpose of inhibiting the formation of caking substances and reducing The effect of unplanned shutdown and extended start-up cycle
Active Publication Date: 2013-07-10
CHINA PETROCHEMICAL CORP +1
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Problems solved by technology
[0003] In recent years, most of the measures taken by domestic oil refineries to address the fouling problem of flue gas turbines are: on the one hand, some improvements and perfections have been made in terms of operating conditions to slow down the occurrence of fouling, but the problem has not been fundamentally solved; in addition, the flue gas During the operation of the turbine, the online monitoring method is used to monitor the vibration amplitude of the bearing bush of the flue gas turbine. After the vibration exceeds the standard, stop the gas turbine for descaling or blade replacement, which seriously affects the economic benefits and safety production of the refinery.
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Embodiment 1
[0020] The ratio of antiscalant is: calcium oxide 40%, magnesium oxide 10%, zinc oxide 10%, calcium hydroxide 15%, calcium carbonate 10%, magnesium carbonate 15%.
Embodiment 2
[0022] The ratio of scale inhibitor is: calcium oxide 60%, magnesium oxide 15%, zinc oxide 5%, calcium carbonate 5%, magnesium carbonate 5%, ammonium molybdate 10%.
Embodiment 3
[0024] The ratio of antiscalant is: calcium oxide 100%.
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Abstract
The invention provides a scale inhibitor composition for a gas turbine. The scale inhibitor composition comprises the following components by weight percentage: 0-100% of metal oxides, 0-100% of hydroxides, 0-100% of carbonate and 0-15% of ammonium salt, wherein the metal oxides mainly comprise calcium oxide, magnesium oxide, zinc oxide and the like, the hydroxides mainly comprise calcium hydroxide and magnesium hydroxide, the carbonate mainly comprises calcium carbonate and magnesium carbonate, and the ammonium salt mainly comprises ammonium molybdate and ammonium tungstate. The scale inhibitor composition can effectively inhibit formation of bonding substances so as to achieve the effect of scale inhibition; compared with the existing technology for removing formed scale of the gas turbine, the scale inhibitor composition has the obvious advantages of extending the operation cycle of the gas turbine and reducing non-scheduled shutdown caused by scale formation of the gas turbine as well as economic losses and potential safety hazards caused by the non-scheduled shutdown.
Description
technical field [0001] The invention relates to a scale inhibitor composition for flue gas turbines, which is suitable for suppressing fouling of flue gas turbine blades in catalytic cracking energy recovery units in oil refining enterprises. Background technique [0002] Flue gas turbines are important energy recovery equipment for catalytic cracking units in oil refineries. Flue gas energy recovery units have significant energy-saving and environmental protection benefits, but they are also one of the equipment with the highest failure rate in the refining and chemical industry. In some refineries, the number of outages due to excessive vibration of flue gas turbines accounts for 40% of the total number of outages, and blade fouling is an important reason for outages due to excessive vibration. The reasons and mechanism of flue gas turbine fouling are very complicated, mainly as follows: 1. The existence of a large amount of catalyst dust in the flue gas provides a materia...
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IPC IPC(8): C10G75/04C10G11/00
Inventor 杨少锋潘延民杨成炯徐平义李小苗刘九林杨莹杨金辉刘志龙程荣奇焦云
Owner CHINA PETROCHEMICAL CORP