A cleaning process and system for the disposal of acetylene waste acid
An acetylene and clean technology, which is applied in the field of three-waste recycling technology in the PVC industry, can solve problems such as non-compliance with environmental protection requirements, corrosion, and difficulty in selling gypsum.
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Embodiment 1
[0030] The design capacity of the device is: annual treatment of waste sulfuric acid is 5000t, and it is approved according to 300 days.
[0031]In the high-temperature gasification furnace (1) using natural gas as a heat source, 2.78t / h of acetylene waste acid (content: 81% sulfuric acid, 2.87% ash content, density: 1.72kg / L) is injected from the top, and the furnace top temperature is 400 °C, furnace bottom temperature is 700 °C, 25% of the liquid after the reaction is vaporized and decomposed into gas, of which SO 3 +H 2 The total amount of O is 0.695t / h (excluding H produced by fuel 2 O) wherein the gas content:
[0032] composition SO 3
h 2 o
N 2
O 2
CO 2
Content (volume content) 0.073 0.19 0.63 0.053 0.054
[0033] The gas leaving the gasifier enters the Venturi precipitator. The composition of the gas leaving the Venturi dust collector is:
[0034] composition SO 3
h 2 o
N 2
O 2
CO 2 ...
Embodiment 2
[0040] The design capacity of the device is: annual treatment of waste sulfuric acid is 5000t, and it is approved according to 300 days.
[0041] In the high-temperature gasification furnace (1) using natural gas as a heat source, acetylene waste acid (content: 81% sulfuric acid, 2.87% ash, density: 1.72kg / L) 2.78t / h is sprayed from the top, and the furnace top temperature is 450 ℃, the furnace bottom temperature is 750℃, 30% of the liquid after the reaction is gasified and decomposed into gas, among which SO 3 +H 2 The total amount of O is 0.834t / h (excluding H produced by fuel 2 O) wherein the gas content:
[0042] composition SO 3
h 2 o
N 2
O 2
CO 2
Content (volume content) 0.083 0.20 0.61 0.053 0.054
[0043] The gas leaving the gasifier enters the Venturi precipitator. The composition of the gas leaving the Venturi dust collector is:
[0044] composition SO 3
h 2 o
N 2
O 2
CO 2
...
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Abstract
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