A gas purification device for removing low content of carbonyl nickel

By combining a gas-liquid separator, a dryer, and a nickel carbonyl absorber, the problem of purifying low-content nickel carbonyl in the chemical industry has been solved, enabling the recovery of high-purity hydrogen and improving economic benefits.

CN224506687UActive Publication Date: 2026-07-17河南开祥精细化工有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
河南开祥精细化工有限公司
Filing Date
2025-05-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, when using nickel alloy catalysts in hydrogenation reactors in chemical and other production fields, the low-content nickel carbonyl gas produced accumulates at the top of the reactor, resulting in nickel carbonyl in the vent gas. This affects hydrogen recovery and utilization as well as exhaust gas emissions, and enterprises have a strong demand for purification devices under economic pressure.

Method used

A purification device including a gas-liquid separator, a dryer, and a nickel carbonyl absorber was designed. Through gas-liquid separation, drying, and absorption processes, activated carbon is used to adsorb moisture and aluminum compound absorbents are used to remove nickel carbonyl, ensuring continuous operation of the device and recycling of purified gas.

Benefits of technology

This technology enables the recovery and utilization of high-purity hydrogen, reduces exhaust emissions, extends the service life of the absorbent, lowers production costs, and improves economic efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of gas purification devices of low content carbonyl nickel is taken out, the device has gas-liquid separator, dryer, carbonyl nickel absorber. Gas-liquid separator can be realized to the gas needing processing preliminary gas-liquid separation, separated liquid can be discharged in time simultaneously. Dryer is filled with activated carbon with good water absorption, water in gas can be further absorbed and taken out, and the activated carbon in dryer can be regenerated, repeatedly used. Carbonyl nickel absorber is filled with special carbonyl nickel absorbent, absorbs and takes out carbonyl nickel in incoming gas, finally obtains purified gas, and according to user production device recycling, to improve economic efficiency.
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Claims

1. A gas cleaning device for removing low content of carbonyl nickel, characterized in that: The apparatus includes a gas-liquid separator, a dryer, and a nickel carbonyl absorber. A level gauge is installed at the bottom of the gas-liquid separator. A differential pressure gauge is installed inside the dryer, and a differential pressure gauge is installed inside the nickel carbonyl absorber. An inlet pipe is provided at the top of the gas-liquid separator. The outlet pipe at the top of the gas-liquid separator is connected to the inlet pipe at the bottom of the dryer. The outlet pipe at the top of the gas-liquid separator is also connected to a bypass pipe, which is connected to the lower inlet pipe of the nickel carbonyl absorber. The outlet pipe at the top of the dryer is connected to the lower inlet pipe of the nickel carbonyl absorber. An outlet pipe is provided at the top of the nickel carbonyl absorber. Bottom pipes are also provided at the bottom of the gas-liquid separator, the dryer, and the nickel carbonyl absorber. All bottom pipes of the gas-liquid separator, the dryer, and the nickel carbonyl absorber are connected to a drain pipe.

2. The gas purification device for removing low content of nickel carbonyl according to claim 1, characterized in that: The gas-liquid separator is connected to a nitrogen replacement pipe via its inlet pipe.

3. The device for purifying gas from which low content of nickel carbonyl is released according to claim 1, characterized in that: A safety valve is installed on the outlet pipe at the top of the gas-liquid separator.

4. The device for purifying gas from which low content of nickel carbonyl is released according to claim 1, characterized in that: A nitrogen backflushing pipe is connected to the outlet pipe at the top of the dryer.

5. The device for purifying gas from which low content of nickel carbonyl is released according to claim 1, characterized in that: Pressure gauges are installed on the gas-liquid separator, dryer, and nickel carbonyl absorber.

6. The gas purification device for removing low-content nickel carbonyl according to claim 1, characterized in that: Both the dryer and the nickel carbonyl absorber are equipped with upper and lower grid plates, and 20-mesh wire mesh is laid on both the upper and lower grid plates.

7. A gas purification device for removing low-content nickel carbonyl as described in claim 6, characterized in that: A feed hole at an inclination of 45° is provided on the outer shell of the nickel carbonyl absorber between the upper and lower grid plates, and nickel carbonyl absorbent is contained inside the nickel carbonyl absorber.

8. The gas purification device for removing low content of nickel carbonyl according to claim 7, characterized in that: The carbonyl nickel absorbent is an aluminum compound.

9. The gas purification device for removing low content of nickel carbonyl according to claim 1, characterized in that: The volume of the nickel carbonyl absorber is twice that of the dryer.