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APPROXIMATEL HALF OF AUTOMOTIVE NOX IS RELEASED IN THE INITIAL MINUTES AFTER STARTUP, WHEN THE CATALYTIC CONVERTER IS COLD, AND IS A SIGNIFICANT SOURCE OF ACID RAIN. THIS PROJECT WILL DETERMINE THE FEASIBILITY OF REVERSIBLY ADSORBING THIS "COLD-START" NOX IN A SORBENT BED AND SUBSEQUENTLY RELEASING THE NOX INTO A THREE-WAY CATALYTIC CONVERTER TO BE REDUCED. THIS COULD REDUCE THE ENVIRONMENTAL NOX ...

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THE CLEAN AIR ACT AMENDMENTS OF 1990 INCLUDED STANDARDS FOR VOLATILE ORGANIC COMPOUND (VOC) EMISSIONS FROM EQUIPMENT LEAKS (FUGITIVE EMISSIONS) AND FROM SMALL VENT STREAMS. SUCH EMISSIONS ARE ESTIMATED TO TOTAL 330 MILLION KG/YEAR; ADDITIONAL CONTROLS REQUIRED BY THE NEW ACT ARE EXPECTED TO COST INDUSTRY ALMOST $120 MILLION/YEAR FOR THE NEXT DECADE AND BEYOND. VERY SMALL (1-3 SCFM) MEMBRANE VAPOR ...

CHLORINE RANKS AMONG THE TEN MOST IMPORTANT COMMODITY CHEMICALS. APPROXIMATELY 54% OF THE TOTAL U.S. CHLORINE PRODUCTION IS LIQUEFIED FOR SALE OR FOR IN-PLANT TRANSPORT. TAIL GAS PRODUCED FROM THE CHLORINE LIQUEFACTION PROCESS IS THE PRINCIPAL SOURCE OF CHLORINE-CONTAINING WASTE GAS STREAMS PRODUCED BY CHLOR-ALKALI PLANTS. CURRENTLY, SUCH STREAMS ARE TREATED BY ABSORPTION IN CARBON TETRACHLORIDE; ...

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STRINGENTLY REGULATED OZONE NONATTAINMENT AIR QUALITY REGIONS WILL REQUIRE THE IMPLEMENTATION OF ULTRA-LOW-NOX SYSTEMS. CURRENTLY, ONLY COSTLY SELECTIVE CATALYTIC REDUCTION (SCR) SYSTEMS CAN ACHIEVE VERY HIGH LEVELS OF NOX REDUCTION. INEXPENSIVE LOW NOX BURNERS, THAT CAN MEET THE REGULATIONS WITHOUT SCR, ARE URGENTLY NEEDED BY INDUSTRY. RECENTLY, PROGRESS HAS BEEN MADE TOWARDS DEVELOPING A SUB-9 P ...

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