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High-temperature semi-tar gas desulfurizer and its use

A desulfurizer and high temperature technology, which is used in the purification of catalytic conversion gas of impurities, the petroleum industry, the preparation of liquid hydrocarbon mixtures, etc. Low requirements, low equipment requirements, and simple preparation process

Inactive Publication Date: 2009-12-02
SHENYANG INST OF AERONAUTICAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, high and medium temperature desulfurizers generally have problems such as poor cycle stability, difficult regeneration, and serious atmosphere effects.

Method used

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  • High-temperature semi-tar gas desulfurizer and its use
  • High-temperature semi-tar gas desulfurizer and its use
  • High-temperature semi-tar gas desulfurizer and its use

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Embodiment Construction

[0018] A new type of semi-coke high-temperature gas desulfurizer, the composition of the desulfurizer is (Fe x Ce 1-x ) y (Mo, Ti, Ni, Cu, Zn) 1-y / C.x values ​​are 0.2-0.7 and y values ​​are 0.4-0.9. The content of multiple metal elements in semi-coke is 20%-70% (wt, db).

[0019] Preparation of desulfurizer: The preparation of semi-coke high-temperature desulfurizer is divided into two steps. The first step is the implantation of metal elements. Utilize the metal salt solution of desulfurization active components (ie Fe, Ce, Mo, Ni, Ti, Cu and Zn, etc.), adopt the method of ion exchange and solution implantation to implant 20%-40% (wt) in lignite Mixture of metals of different composition. The specific method is to use 0.1-1.0N concentration of acid (HCl or H) on the pulverized lignite with a particle size of 0.1mm-2.5mm 2 SO 4 or HNO 3 ) aqueous solution at normal temperature and pressure, soaked in 0.2N metal salt (hydrochloric acid or sulfuric acid or nitrate) aq...

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Abstract

A semi-coke high-temperature gas desulfurizer, the composition of the desulfurizer is (FexCe1-x)y(Mo, Ti, Ni, Cu, Zn)1-y / C. The value of x is 0.2-0.7, and the value of y is 0.4-0.9 . The content of metal elements in semi-coke is 20%-70% (wt, db). The equipment used to prepare the desulfurizer is a self-heating steam gasification device, and the sulfided semi-coke desulfurizer can be directly used as a catalyst for direct coal liquefaction. The preparation process of the desulfurizer of the present invention is simple, the cost is low, and the requirements for supporting equipment are not high, which can effectively simplify the high-temperature gas desulfurization process and equipment, and effectively reduce the cost of direct coal liquefaction.

Description

Technical field: [0001] The invention relates to a high-temperature gas desulfurizer and its application, in particular to a high-temperature gas desulfurizer with lignite semi-coke as a carrier and its application. Background technique: [0002] my country is a country dominated by coal as a primary energy source, and has become the world's largest coal producer. In the next few decades, the sustainable development of my country's economy will continue to rely on coal to provide the main energy support (accounting for more than 65%). Relevant data show that my country's coal production has reached 1.6 billion tons in 2004 and exceeded 2 billion tons in 2006. my country's recoverable reserves of coal resources rank third in the world, accounting for about 11.5% of the world's total reserves. Due to the dual pressure of energy and environment, my country must reduce pollution emissions while improving energy supply capacity in the future. Therefore, coal gasification polyg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10K1/34C10G1/08
Inventor 余江龙常丽萍张志强谢巍谢克昌
Owner SHENYANG INST OF AERONAUTICAL ENG