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High effectively removing pump from flue gas

A flue gas and gas flow technology, applied in gas treatment, other chemical processes, separation methods, etc., can solve problems such as absorption, confinement, mixing of dust by-products, etc.

Inactive Publication Date: 2007-11-21
哈尔・施蒂勒 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But depending on the source of mercury and combustion conditions, 10-90% of the mercury in the flue gas is oxidized, therefore, it cannot be absorbed by simple absorbents such as carbon, making the application of this method severely limited
Moreover, even though carbon injection has the advantage of being relatively inexpensive, there is an obvious disadvantage: Mercury-contaminated carbon can mix with solid fuel dust by-products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0048] After completion of the test, the mercury charge was removed from the reactor and weighed. Mercury weighs 17.8945g, or 35.79% of its original weight. Then, the spongy zinc was removed from the trap and weighed. The zinc sponge weighed 117.6077 g, representing an increase of 17.61%, corresponding to a mercury transfer of 98.4% from the original charge, thus confirming a recovery of 98.40 from inlet and outlet concentration measurements. %.

[0049] Then, the spongy zinc was vacuum distilled at 200 °C for 1 hour. The distilled mercury weighed 17.5994 g, representing a recovery of 99.95% from the mercury trapped in the zinc sponge. Moreover, it was determined that the spongy zinc did not significantly change its shape and could be repurposed into a mercury-trapping system.

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PUM

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Abstract

The invention provides for the removal of mercury from flue and other mercury-contaminated gases. Compositions, systems and methods for the removal of elemental mercury and mercury compounds from flue gases are provided.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Application No. 60 / ___,___, entitled "Efficiently Removing Mercury from Flue Gases," filed November 1, 2004, the entire contents of which are hereby incorporated by reference middle. [0003] technical field of invention [0004] The present invention generally relates to the removal of mercury from flue gases. In particular, the present invention relates to materials, systems and methods for removing elemental mercury and mercury compounds from flue gases. Background of the invention [0005] Mercury is released into the atmosphere when fossil fuels are burned, especially coal and other solid fuels, which can cause mercury pollution to land and water bodies. In recent years, the EPA and state environmental agencies have identified the burning of fossil fuels in the electric power industry as a major source of mercury dispersion and are developing regulations to lim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/00
CPCB01D53/64B01D2257/602
Inventor 哈尔·施蒂勒史蒂文·C·阿门多拉
Owner 哈尔・施蒂勒