Summary: The article is brief the gaseous contaminant that narrated human industrialization to bring if the harm of the environment of healthy to the mankind, zoology such as the NOx in waiting, SOx, P, As, PH3, CO reachs nitric acid tail gas, yellow phosphorus tail gas measure of prevention and cure, a few tests that knot co-worker unit has developed in adsorptive and detached domain study, the prospect that discussed adsorptive and detached technology to apply in processing gas contaminant reachs feasibility.

Key word: Air pollution of technology of aeriform adsorption depart prevents and cure

　1 preface

As human industrialization degree rise ceaselessly, the harmful matter that the mankind arranges in the environment that to oneself Lai Yisheng becomes is in ceaselessly grow in quantity, “ guards the catchword that the earth, environment ” that protects us to generate is an exaggerate sth just to scare people merely no longer, matter to our descendants however whether the important matter of existent no time to delay. The mankind needs to develop but need to protect an environment more, the environment that how has protected us is us the problem that broad Scientists and Technologists cares jointly. Current, the main contaminant that industrial production brings to the environment is industrial waste gas, industrial waste water, waste residue (namely industrial “ 3 useless ”) , among them the various industrial waste gas that the factory measures to enlarge of the platoon in atmosphere everyday are minatory to human health great, dropping contaminant discharge capacity lowermost limit as far as possible is very necessary.

Impact of opposite state environment is bigger browbeat with human health bigger and the waste gas with absolutely larger discharge capacity basically includes:

(1) the toxic gas that contains the contaminant such as NOx, SO2, P, As, PH3, CO, HF, C2HCl3, C2H3Cl3;

(2) other gas, begin what often be necessary about reducing the research dispute of this kind of harmful waste gas, the article combines the research that the author has begun in this one domain, the meaning that discussed to purify this kind of gas with contemporary and adsorptive detached technology reachs the feasibility that industry develops.

　　 2 adsorptive and detached technologies govern base of waste gas technology and process

(1) base of technology of aeriform adsorption depart

Technology of aeriform adsorption depart is to develop a faster new technology in recent years, the poor unusual cent according to second birth means mixes for law of pressure swing adsorption become lukewarm adsorptive law two kinds: (1) pressure swing adsorption (English name Pressure Swing Adsorption, abbreviation is PSA) law extract or separate unit is a basis constant different group share is in the gas mixture below temperature on sorbent the difference of the adsorptive capacity that the difference of adsorptive capacity or adsorptive rate and different pressure leave constituent to go up in sorbent and of implementation, because used the circular operation of pressure fluctuate, share of powerful adsorptive group presses next desorption in small fraction, sorbent be able to second birth; The service life of sorbent is 10 years of above commonly, PSA course is so basic it is not to have raw material to use up a process; (2) become lukewarm adsorptive law (English name Temperature Swing Adsorption, abbreviation is TSA) or become lukewarm law of pressure swing adsorption (abbreviation is PTSA) it is a basis the implementation of adsorptive size diversity that waits for separate group share to fall in different temperature is detached, because use the circular operation of temperature fluctuate, below the high temperature be been in by share of adsorptive powerful adsorptive group below microtherm be able to desorption, sorbent be able to second birth, refrigeration hind can issue share of group of adsorptive strong adsorption at microtherm again. The main basis that whether uses adsorptive law depart certainly departs to wait for the adsorption between constituent is isothermal, graph 1 to wait for detached constituent A (contaminant) , B (blame contaminant) isothermal place shows the adsorption that is T1 or T2 in temperature:
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