按废气污染物成分划分的适用类型

Applicable types classified by the composition of exhaust pollutants

1. 低浓度 VOCs 为主、含少量 CO 的混合废气

1. Mixed exhaust gas mainly composed of low concentration VOCs and containing a small amount of CO

典型成分：烷烃（如丙烷、丁烷）、芳烃（苯、甲苯、二甲苯）、酮类（丙酮、丁酮）、醇类（乙醇、异丙醇），搭配少量一氧化碳（CO，来自燃烧设备不完全燃烧或化学反应副产物）。

Typical components: alkanes (such as propane, butane), aromatics (benzene, toluene, xylene), ketones (acetone, butanone), alcohols (ethanol, isopropanol), combined with a small amount of carbon monoxide (CO, a byproduct of incomplete combustion or chemical reactions in combustion equipment).

工艺适配性：

Process adaptability:

沸石转轮优先吸附 VOCs，将低浓度废气（如 VOCs≤1000mg/m³，CO≤500mg/m³）浓缩 10-20 倍，使后续催化氧化设备只需处理高浓度 VOCs（5000-10000mg/m³），同时 CO 在催化剂作用下同步氧化为 CO₂，避免单独处理低浓度废气的能耗浪费。

The zeolite wheel preferentially adsorbs VOCs, concentrating low concentration exhaust gases (such as VOCs ≤ 1000mg/m ³, CO ≤ 500mg/m ³) 10-20 times, so that subsequent catalytic oxidation equipment only needs to process high concentration VOCs (5000-10000mg/m ³), while CO is synchronously oxidized to CO ₂ under the action of the catalyst, avoiding energy waste in processing low concentration exhaust gases separately.

2. 成分复杂、易波动的多组分废气

2. Multi component exhaust gas with complex composition and easy fluctuation

典型成分：同时含有苯系物、酯类（乙酸乙酯、乙酸丁酯）、醛类（甲醛、乙醛）及 CO 的混合废气，常见于化工反应釜尾气、溶剂回收车间废气。

Typical components: A mixed exhaust gas containing benzene derivatives, esters (ethyl acetate, butyl acetate), aldehydes (formaldehyde, acetaldehyde), and CO, commonly found in the exhaust gas of chemical reaction vessels and solvent recovery workshops.

工艺优势：

Technological advantages:

沸石转轮的疏水性沸石分子筛对极性 / 非极性 VOCs 均有吸附能力，能 “广谱捕捉” 多种有机物；催化氧化设备的催化剂（如铂钯合金）对不同 VOCs 的氧化反应具有普适性，且不受废气浓度瞬间波动（如开停车阶段浓度骤升）影响，通过转轮的缓冲吸附，确保催化单元稳定运行。

The hydrophobic zeolite molecular sieve of the zeolite wheel has adsorption capacity for both polar and non-polar VOCs, and can "broad-spectrum capture" various organic compounds; The catalyst of catalytic oxidation equipment (such as platinum palladium alloy) has universality for the oxidation reaction of different VOCs, and is not affected by the instantaneous fluctuation of exhaust gas concentration (such as the sudden increase in concentration during the start-up and shutdown stages). Through the buffering adsorption of the impeller, the stable operation of the catalytic unit is ensured.

3. 易燃易爆风险的废气

3. Waste gases with flammable and explosive risks

典型成分：高挥发性溶剂废气（如汽油蒸气、溶剂油雾），或含易爆炸下限（LEL）10%-30% 的可燃气体（如二甲苯与空气混合气体），同时可能含 CO（来自不完全燃烧）。

Typical components: high volatility solvent exhaust gas (such as gasoline vapor, solvent oil mist), or combustible gases containing a lower explosive limit (LEL) of 10% -30% (such as a mixture of xylene and air), and may also contain CO (from incomplete combustion).

安全适配性：

Safety adaptability:

沸石转轮的吸附过程在常温下进行，避免高温引发爆炸；催化氧化温度（200-400℃）远低于 VOCs 燃点（如二甲苯燃点 525℃），且浓缩后的废气经稀释后进入催化单元，浓度控制在 LEL 的 25% 以下，从源头杜绝安全隐患。

The adsorption process of zeolite wheel is carried out at room temperature to avoid explosion caused by high temperature; The catalytic oxidation temperature (200-400 ℃) is much lower than the ignition point of VOCs (such as the ignition point of xylene at 525 ℃), and the concentrated exhaust gas enters the catalytic unit after dilution, with a concentration controlled below 25% of LEL, to eliminate safety hazards from the source.

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