A system and process for the recovery of at least one anesthetic from a gas stream including at least two anesthetics. The recovery includes adsorption by exposing the gas stream to an adsorbent. The adsorbent is then regenerated by exposing the adsorbent to a purge gas under conditions which efficiently desorb the at least two anethetics from the adsorbent. The at least two anesthetics (and impurities or reaction products) are condensed from the purge gas and subjected to fractional distillation to provide a recovered anesthetic.

An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol% and 50 vol% n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol% and 50 vol% n-butane, an effective butane working capacity (BWC) of less than 3 g/dL, and a g-total BWC of between 2 grams and 6 grams. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr butane loading step.

An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr BETP butane loading step.

Novel radioactive iodide molecular traps, in which one or more metal atoms are functionalized by coordinating to an amine containing two or more nitrogens, and methods of using the molecular traps to capture radioactive iodide.

An organic matter decomposition catalyst that contains a perovskite type complex oxide represented by A.sub.xB.sub.yM.sub.zO.sub.w, wherein A contains 90 at % or more of at least one element selected from the group consisting of Ba and Sr, B contains 80 at % or more of Zr, M is at least one element selected from the group consisting of Mn, Co, Ni, and Fe, y+z=1, x>1, z<0.4, and w is a positive value that satisfies electrical neutrality.

Catalyst regeneration processes that include measures for controlling emissions generated during the regeneration are described. The present invention further relates to catalytic processes for producing various chlorinated aromatic compounds that include provisions for controlling emissions during catalyst regeneration.

The present invention relates to a process for removing acid compounds contained in a gaseous effluent which consists in bringing a gaseous effluent into contact, in the absorption column, with an absorbent solution comprising water, between 20% and 28% by weight of pentamethyldipropylenetriamine and between 5% and 35% by weight of N-methyldiethanolamine.

There is provided a photoreactor for the remediation of gaseous emissions and/or contaminated water using ultraviolet (UV) or vacuum ultraviolet (VUV). There is also provided an emission source for generating UV and/or VUV, the source comprising: a microwave generator; a chamber arranged to receive microwaves generated by the microwave generator, the chamber comprising: a gas comprising species for forming excimers; a resonator arranged to receive the microwaves in the chamber and generate a plasma; a first electrode spaced apart from the resonator; and a voltage source configured to generate an electric field between the resonator and the first electrode, wherein, on application of the electric field, the electric field drives electrons and/or ions from the plasma to generate excimers and produce vacuum ultraviolet or ultraviolet emission. There are also provided methods of generating UV and/or VUV, and methods of remediating fluids.

To provide a carbon dioxide separation composition which is excellent in carbon dioxide desorption efficiency (desorption amount/absorption amount) and durability to nitrogen oxides, and a method for separating carbon dioxide.

A carbon dioxide separation composition, containing at least one amine compound selected from the group consisting of an amine compound represented by the following formula (1):

##STR00001## wherein R.sup.1 to R.sup.3 each independently represent a hydrogen atom or a C.sub.1-4 alkyl group, and an amine compound represented by the following formula (2):

##STR00002## wherein R.sup.10, R.sup.11, R.sup.12, R.sup.13 and R.sup.14 each independently represent a hydrogen atom, a C.sub.1-4 alkyl group, a hydroxy group, a hydroxymethyl group, a 2-hydroxyethyl group or a C.sub.1-4 alkoxy group, a and b are each independently 0 or 1 and satisfy the relation a+b=1, and R.sup.15 is a hydrogen atom, a C.sub.1-4 alkyl group, a methoxymethyl group, a methoxyethoxymethyl group or a 2-hydroxyethyl group.

In a process for the purification of a gas flow containing NO.sub.2, carbon dioxide and nitrogen, the gas flow is purified by adsorption in order to produce a flow enriched in carbon dioxide and in NO.sub.x and depleted in nitrogen, the flow enriched in carbon dioxide and in NO.sub.x and depleted in nitrogen is treated in a treatment unit in order to form a fluid enriched in NO.sub.2 with respect to the treated flow, the fluid enriched in NO.sub.2 is sent to a catalytic conversion unit making possible the conversion of at least a portion of the NO.sub.2, in the presence of oxygen and also of ammonia or of urea, to give nitrogen and water in order to produce a gas depleted in NO.sub.2 with respect to the fluid enriched in NO.sub.2, the catalytic conversion unit also being fed with a fluid having nitrogen as main component.