Acid gas treatment
First Claim
1. Apparatus for treating acid gas, the apparatus comprising:
- an acid gas pre-treatment system;
in fluid communication with the acid gas pre-treatment system, an ammonia desulfurization system; and
,in fluid communication with the ammonia desulfurization system, an impurity removal apparatus that includes a catalytic oxidation apparatus.
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Abstract
Apparatus and methods for treating acid gas, which utilizes multi-stage absorption cycle of ammonia desulfurization to treat acid tail gas after pre-treatment of the acid gas, thereby achieving the purpose of efficient and low-cost treatment of acid tail gas. The parameters of the acid tail gas may be adjusted by a regulatory system such that the enthalpy value of the acid tail gas is in the range of 60-850 kJ/kg dry gas, for example, 80-680 kJ/kg dry gas or 100-450 kJ/kg dry gas, to meet the requirements of ammonia desulfurization, and achieve the synergy between the acid gas pre-treatment and ammonia desulfurization. Furthermore, hydrogen sulfide may be converted into sulfur/sulfuric acid plus ammonium sulfate at an adjustable ratio.
43 Citations
21 Claims
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1. Apparatus for treating acid gas, the apparatus comprising:
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an acid gas pre-treatment system; in fluid communication with the acid gas pre-treatment system, an ammonia desulfurization system; and
,in fluid communication with the ammonia desulfurization system, an impurity removal apparatus that includes a catalytic oxidation apparatus. - View Dependent Claims (2, 3, 4, 5, 6)
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7. Apparatus for treating acid gas, the apparatus comprising:
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an acid gas pre-treatment system; in fluid communication with the acid gas pre-treatment system, an ammonia desulfurization system; and
,in fluid communication with the ammonia desulfurization system; an impurity removal apparatus that includes a catalytic oxidation apparatus; and a dust removal apparatus. - View Dependent Claims (8, 9, 10)
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11. Apparatus for treating acid gas, the apparatus comprising:
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an acid gas pre-treatment system, the acid gas pre-treatment system including a sulfur recovery system plus incineration system; in fluid communication with the acid gas pre-treatment system, an ammonia desulfurization system; and
,in fluid communication with the ammonia desulfurization system, an impurity removal apparatus that includes a catalytic oxidation apparatus. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification