A method for dehydration of supplemented hydrogen in szorb device

A technology of hydrogen and air inlet pipes, applied in the direction of hydrogen separation, etc., can solve the problems of limited separation accuracy requirements, long-term operation with large water volume, etc., to achieve maintenance-free equipment, avoid abnormal vibration and excessive current, and reduce short-circuit flow. the effect of

Active Publication Date: 2015-09-16
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

The innovation of cyclone separation equipment structure is constantly expanding the application field of cyclone separation, but the use of cyclone separation method is still limited by technology when the density difference is small and the separation precision is high.
[0007] In short, due to the urgent need for environmental protection indicators and the above-mentioned problems in the existing technology, the problem of long-term operation of the dehydration operation under the condition of large amount of water and large fluctuations in the supplementary hydrogen of the SZorb device has not been really effectively solved so far.

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  • A method for dehydration of supplemented hydrogen in szorb device
  • A method for dehydration of supplemented hydrogen in szorb device
  • A method for dehydration of supplemented hydrogen in szorb device

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Embodiment Construction

[0046] In order to better understand the present invention, the content of the present invention will be further clarified below in conjunction with the embodiments, but the content of the present invention is not limited to the following embodiments.

[0047] The method for removing water from the hydrogen supplemented in the Szorb device includes the following steps in sequence:

[0048] A. Under the condition that the pressure is less than 11MPa and the temperature does not exceed 110°C, the supplementary hydrogen is freed from free water to obtain hydrogen with saturated water, and the water content of the hydrogen with saturated water is not more than 50ppm;

[0049] B. Under the condition that the pressure is less than 11MPa and the temperature does not exceed 110°C, the saturated water in the hydrogen entrained with saturated water obtained in step A is removed to obtain purified supplementary hydrogen, and the water content of the purified supplementary hydrogen is not more th...

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Abstract

The invention discloses a method of supplementing a hydrogen gas in a Szorb device to remove moisture. The method comprises the following steps in sequence: A, removing free water for the supplemented hydrogen gas under conditions that pressure is smaller than 11 MPa and a temperature does not exceed 110 DEG C to obtain the hydrogen gas with saturated water; and B, removing the saturated water in the hydrogen gas with the saturated water in the step A under the condition that pressure is less than 11 MPA and the temperature does not exceed 110 DEG C to obtain the purified supplemented hydrogen gas. According to the method of supplementing the hydrogen gas in the Szorb device to remove moisture disclosed by the invention, the applied device is low investment cost, small in floor space, capable of separating efficiency, low in fault rate, free from maintenance, and good in hydrogen supplementing effect, so that the problems that the hydrogen gas carries water and a drying adsorber is short in service cycle are effectively solved, and therefore, the device can be continuously served for over 4 years, the phenomena of abnormal vibration and oversize current caused by liquid carried on a hydrogen gas-supplementing compressor are avoided, and safety stability is improved; meanwhile, energy consumption is lowered.

Description

Technical field [0001] The invention relates to a method for removing moisture from hydrogen supplemented in a Szorb device, belonging to a method for dehydrating hydrogen in a catalytic cracking (FCC) gasoline Szorb desulfurization process in the field of petrochemical and environmental protection, and is suitable for a catalytic adsorption desulfurization process. Background technique [0002] With the continuous improvement of environmental protection requirements by countries around the world, the global gasoline sulfur content index has become increasingly strict. The European Union has implemented the Euro V standard since 2009, and its restrictions on motor vehicle emissions such as nitrogen oxides and hydrocarbons have become more stringent. strict. my country implemented the National III standard (gas fraction of sulfur less than 150μg / g) nationwide on January 1, 2010, and Beijing has implemented the National IV standard (sulfur content of gasoline less than 50μg / g) in M...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/50
Inventor 赵日峰许德建孙柏军汪华林吴文锋唐超程琨
Owner CHINA PETROLEUM & CHEM CORP
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