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Process for recovery of acid gases

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专利汇可以提供Process for recovery of acid gases专利检索,专利查询,专利分析的服务。并且A process for removing an acid gas component from a gas stream is shown. The gas is passed in contact with finely divided nepheline syenite which selectively sorbs acid components such as hydrogen fluoride, sulfur dioxide and silicon tetrafluoride from the gas. The nepheline syenite is desirably treated with water to increase its sorbant characteristics.,下面是Process for recovery of acid gases专利的具体信息内容。

  • 2. A process according to claim 1 wherein said acid gas is selected from the group consisting of hydrogen fluoride, silicon tetrafluoride and sulfur dioxide.
  • 3. A process according to claim 1 wherein the said nepheline syenite is in the form of particles of from 4 to 500 mesh.
  • 4. A process according to claim 1 wherein said gas stream is at a temperature of from 100* to 400*F. and is passed in contact with said nepheline syenite at a space velocity of from 102 to 107 hr. 1.
  • 5. A process for selectively sorbing an acid gas component selected from the group consisting of hydrogen fluoride, silicon tetrafluoride and sulfur dioxide from a gas stream, comprising the steps of: passing said gas stream at a temperature of from 100* to 400*F. and at a space velocity of from 102 to 107 hr. 1 in contact with finely divided nepheline syenite having a particle size of 4 to 500 mesh, said nepheline syenite having first been treated with water; and removing a gas stream from said bed from which said acid component has been selectively sorbed.
  • 6. A process according to claim 5 wherein said nepheline syenite is first treated with from 10 to 50 pounds of water per 100 pounds of nepheline syenite and then dried in order to increase the sorbant characteristics of said syenite for said acid gas components.
  • 7. A process according to claim 5 wherein said acid gas component is hydrogen fluoride.
  • 8. A process according to claim 5 wherein said acid gas component is sulfur dioxide.
  • 9. A process for improving the sorbant characteristics of nepheline syenite with respect to acid gases, comprising the steps of: treating said nepheline syenite with water so as to adsorb water thereon and thereafter drying said nepheline syenite.
  • 10. A process according to claim 9 wherein said nepheline syenite is treated with 10 to 50 pounds of water per 100 pounds of syenite.
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