Refinery gas hydrogenation combination processing technology
A combined process and refinery gas technology, which is applied in the fields of hydroprocessing process, petroleum industry, hydrocarbon oil treatment, etc., to achieve the effect of reducing operating energy consumption and equipment investment
Active Publication Date: 2019-05-21
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
Improve the utilization efficiency of hydrogen and effectively solve the problem of temperature rise in the process of refinery gas hydrotreating without affecting the quality of hydrogenated residue products or even improve the quality of hydrogenated residue products, reducing overall equipment investment and operating energy consumption
Method used
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[0033] The process and effect of the combined hydrogenation method of the present invention will be further described below in conjunction with the examples, but the following examples do not constitute a limitation to the method of the present invention.
[0034] A hydrogenation combination method of the present invention is specifically implemented as follows: raw material oil 1 is mixed with circulating oil 3, and the mixed material and hydrogen gas are mixed in the hydrogen dissolver 4 and then enter the hydrogenation reactor 7, and pass through the first catalyst bed , hydrogen is dissolved in the effluent of the first catalyst bed, and passes through the second catalyst bed, hydrogen and gaseous material 6 are dissolved in the effluent of the second catalyst bed, and passes through the third catalyst bed, the third catalyst bed The reaction effluent 9 is mixed with the gaseous material 6 in the gas dissolver 23 and enters the supplementary reactor 24, and passes through t...
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The invention discloses a refinery gas hydrogenation combination processing technology. The process comprises the following steps: (a) mixing feedstock oil of residual oil and circulating oil with hydrogen in a hydrogen-dissolving device, and then enabling the product to enter hydrogenation catalyst bed layers in a hydrogenation reactor for carrying out a reaction under hydrogenation operating conditions, wherein a gas-dissolving device is arranged between the every two adjacent catalyst bed layers; (b) after mixing of refinery gas and / or the hydrogen, entering the gas-dissolving device arranged between any adjacent catalyst bed layers, mixing the product with a reactant stream coming from the previous catalyst bed layer, and then entering the next catalyst bed layer for carrying out a reaction; (c) mixing a hydrogenation reactant stream, obtained in the step (b), with the refinery gas and the hydrogen in the gas-dissolving devices, and then enabling the product to enter hydrogenationcatalyst bed layers in a supplementary hydrogenation reactor for carrying out a reaction under liquid phase hydrogenation operating conditions; (d) separating hydrogenation reaction effluent, obtainedin the step (c), into a gas phase and a liquid phase, removing hydrogen sulfide from the separated gas phase and then continuously separating to obtain hydrogen and the hydrotreated refinery gas. Themethod can realize the hydrotreatment of the refinery gas and the production of hydrogenated residual oil at the same time.
Description
technical field [0001] The invention belongs to the hydrogenation process of oil refining technology, and relates to a refinery gas hydrogenation combined processing technology, in particular to a refinery gas hydrogenation treatment and hydrogenation combined hydrogenation residue production method. Background technique [0002] At present, the energy on a global scale mainly comes from fossil energy, among which petroleum is the most important source of motor fuel. Petroleum is a non-renewable energy source. Not only are the resources increasingly depleted, but also the trend of heavy and inferior quality is intensifying. The continuous development of the world economy and increasingly stringent environmental protection regulations require the production of a large amount of light and clean fuels, which require the improvement of the existing refining technology. Add new oil substitutes while improving, and produce products that meet the requirements at the lowest cost. C...
Claims
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IPC IPC(8): C10G67/00
Inventor 刘涛蒋立敬李宝忠吴锐袁胜华乔凯
Owner CHINA PETROLEUM & CHEM CORP