Method for calculating influence of microbubble size on hydrodesulfurization effect of oil product
A technology of hydrodesulfurization and calculation method, applied in the fields of instrumentation, chemical informatics, informatics, etc., can solve the problems affecting the desulfurization process, etc.
Active Publication Date: 2021-06-25
NANJING YANCHANG REACTION TECH RES INST CO LTD
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However, how the bubble size affects the desulfurization process and how to obtain the bubble size that is optimal for the reaction process has not yet been specifically studied.
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[0066] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.
[0067] The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood...
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The invention provides a method for calculating the influence of the microbubble size on the hydrodesulfurization effect of an oil product, and the method comprises the following steps: (A) constructing a hydrodesulfurization macroscopic reaction kinetic equation, (B) when other reactions in which hydrogen participates are not considered, establishing a mass transfer equilibrium equation according to the equal relationship between the oxygen mass transfer rate and the reaction consumption rate, (C) establishing a liquid phase reactant concentration mathematical model, (D) establishing a relational expression between PA and FA in the equation (2), and calculating the actual CA and CB sizes of a system when the size of the microbubbles is fixed by combining the equation with the concentrations CA0 and CB0 at a known reactor inlet so as to embody the influence of the size of the microbubbles on the hydrodesulfurization reaction effect. According to the calculation method, the hydrodesulfurization effect of the micro-interface enhanced fixed bed oil product is determined, so that the design and operation of a hydrodesulfurization micro-interface enhanced reactor of the fixed bed oil product are optimized.
Description
technical field [0001] The invention relates to the field of micro-interface strengthening, in particular to a calculation method for the influence of micro-bubble size on the hydrodesulfurization effect of oil products. Background technique [0002] At present, the most common and effective desulfurization technology for diesel oil is hydrodesulfurization technology. Among them, the catalytic hydrogenation technology with fixed bed bubbling reactor as the reactor has high product quality and mature application technology, and is currently the most widely used. The process uses hydrogen as the raw material of the reaction gas, catalysts such as Co and Mo, the operating temperature is 300-420°C, the desulfurization rate is 86-99.94%, and the liquid hourly space velocity is 1-14h -1 . Although the process has a large liquid holding capacity, high liquid-solid contact efficiency, and good liquid distribution uniformity, it reduces the coking and deactivation of the catalyst. ...
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IPC IPC(8): G16C20/00C10G45/02
CPCG16C20/00C10G45/02
Inventor 张志炳周政李磊张锋孟为民王宝荣杨高东罗华勋田洪舟杨国强曹宇刘甲
Owner NANJING YANCHANG REACTION TECH RES INST CO LTD