Mixed hydrogenation technological process for coker gasoline and once run kerosene
A technology for coking gasoline and straight-run kerosene, which is applied in the direction of refining to remove heteroatoms, etc. It can solve the problems of not being able to significantly improve the quality of other kerosene products, low equipment construction investment, and low equipment operating costs, achieving small equipment changes and low equipment investment. Less, the effect of improving the properties of oil
Active Publication Date: 2012-04-04
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
Hydrodemercaptanization of kerosene distillates is operated under low pressure, which has the advantages of low operating pressure, low equipment construction investment, and low equipment operating costs. The disadvantage is that the depth of hydrogenation is shallow, and it can only be demercaptanized, and cannot significantly improve the quality of other kerosene products. For example, for Aromatics content, smoke point, nitrogen content, acid content and other indicators have no obvious effect
Method used
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Embodiment 1
[0036] The properties of raw oil are shown in Table 1, the operating conditions are shown in Table 2, and the properties of hydrogenation products are shown in Table 3.
[0037] Table 1 Raw Oil Properties
[0038]
[0039] Table 2 Operating Conditions
[0040]
[0041] Table 3 Product properties (cut point 140°C)
[0042]
[0043]
Embodiment 2
[0045] The properties of raw oil are shown in Table 4, the operating conditions are shown in Table 5, and the properties of hydrogenation products are shown in Table 6.
[0046] Table 4 Raw Oil Properties
[0047]
[0048] Table 5 Operating Conditions
[0049]
[0050] Table 6 Product properties (cut point 150°C)
[0051]
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The invention discloses a mixed hydrogenation technique of coking kerosene and virgin kerosene; deep hydrogenation refining is carried out on a hydrogenation device for adjusting the operation conditions of a fractionating tower; a proper cutting point is adopted for obtaining qualified hydrogenated naphtha and hydrogenated kerosene. In the invention, the coking kerosene and the virgin kerosene are mixed for carrying out deep hydrogenation refining and flexibly adjusting the price of oil products as well as the yields of the kerosene and the virgin kerosene, thereby remarkably improving the economic benefits of oil refinery enterprises.
Description
technical field [0001] The invention belongs to the hydroprocessing technology. Specifically, it is a combined process technology of gasoline and kerosene fraction hydrotreating. Background technique [0002] At present, the crude oil processed by refineries tends to become heavier and inferior. With the development of the economy, the demand for light distillate oil, especially clean light distillate oil, is gradually increasing. Conversion to clean light distillate products. Delayed coking is an important means to realize the lightening of inferior heavy oil and residual oil, and has been widely used in various refineries. [0003] With the development of the national economy, the demand for ethylene is increasing, and large-scale ethylene projects require a large amount of naphtha raw materials; at the same time, with the rapid development of the aviation industry, the supply of aviation kerosene is also in short supply. The above situation has caused the prices of nap...
Claims
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IPC IPC(8): C10G45/02
Inventor 王震戴宝华方向晨胡江青洪波钱溢周岗刘继华李扬
Owner CHINA PETROLEUM & CHEM CORP
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