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Hydrofined gas on-line desulfurization and utilization process

A hydrofinishing and gas technology, applied in hydrogen separation, using liquid contact hydrogen separation, etc., can solve the problems of inability to comprehensively handle hydrogen sulfide-containing gas, limited process operation conditions, and wide area, so as to prevent over-temperature accidents, The effect of ensuring product quality and reducing emissions

Inactive Publication Date: 2011-03-23
陈群
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Problems solved by technology

The existing hydrorefining unit adopts the tower desulfurization process, which requires a large investment and covers a large area. Due to the limitation of the process operating conditions, it is only used to remove hydrogen sulfide in the circulating hydrogen at present, and cannot comprehensively treat the hydrogen sulfide contained in many places in the hydrorefining unit. hydrogen sulfide gas

Method used

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  • Hydrofined gas on-line desulfurization and utilization process
  • Hydrofined gas on-line desulfurization and utilization process
  • Hydrofined gas on-line desulfurization and utilization process

Examples

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Embodiment Construction

[0084] 5.1 Project Overview

[0085] The 800,000-ton / year diesel hydrotreating unit (III hydrotreating unit) of Sinopec Anqing Branch Oil Refining Unit 2 processes mixed diesel oil from atmospheric and vacuum, catalytic, coking and cracking units. The sulfur content in the feedstock oil is 0.73% (mass percentage ), the main products are refined diesel oil and naphtha. The reaction part of the hydrofining unit adopts the hydrogen mixing process in front of the furnace. The reactor adopts the domestic catalyst RN-10 type, the reaction temperature is 326°C, the operating pressure is 8.5MPa(g), and the hydrogen-oil ratio is 400. The annual operating hours of the unit are 8,000 hours and continuous production. The main process flow is: feed oil→hydrogenation reactor→heat exchange cooling→high pressure separator→low pressure separator→fractionation tower→refined diesel oil and naphtha. The device is not equipped with a hydrogen sulfide removal tower, and the hydrogen sulfide in the...

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Abstract

The invention discloses a hydrofined gas on-line desulfurization and utilization process. According to the conventional process flow of a hydrofining device and aiming at the characteristics of a plurality of hydrogen sulfide-containing gas spots and the large difference in process operation conditions of the hydrofining device, a special miniature full-automatic desulphurization facility is developed and arranged on each hydrogen sulfide-containing gas pipeline to desulfurize each stream of hydrogen sulfide-containing gas individually; and the conventional hydrogen sulfide-containing gas hydrofining process flow is modified, each stream of purified gas is utilized respectively, and the harmful substance is turned into the beneficial substance, so that energy is saved and emission is reduced. The hydrofined gas on-line desulfurization and utilization process has the function of regulating and controlling the concentration of the hydrogen sulfide in the gas, ensures that the process operation conditions of the conventional hydrogen sulfide-containing gas pipeline are slightly changed, has high automation degree, and is particularly suitable for the modification of the conventional hydrofining device. The harm caused by the hydrogen sulfide-containing gas of the hydrofining device is comprehensively analyzed and solved by the hydrofined gas on-line desulfurization and utilization process, the design principle and method of the process can be applied to the hydrofining device and other petrochemical devices, and economic benefit and social benefit are obvious.

Description

1. Technical field [0001] "On-line desulfurization and utilization process of hydrorefining gas" is based on the existing process flow of hydrorefining units, and in view of the characteristics of many hydrogen sulfide-containing gas points and large differences in process operating conditions in hydrorefining units, a dedicated small-scale fully automated desulfurization facility has been developed. Installed on each hydrogen sulfide-containing gas pipeline, desulfurize each hydrogen sulfide-containing gas separately, and change the existing hydrogenation and refining gas process flow, and use each purified gas separately to turn harm into treasure and achieve The purpose of energy saving and emission reduction. The invention comprehensively solves the harm caused by the hydrogen sulfide gas contained in the hydrogenation refining unit, and can be applied to other petrochemical units. 2. Background technology [0002] With the increasingly stringent requirements of my coun...

Claims

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Application Information

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IPC IPC(8): C01B3/52
Inventor 陈群
Owner 陈群
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