TDA RESEARCH, INC.

REGENERABLE HOT GAS ABSORBENTS (E.G., ZINC FERRITE) ARE BEING DEVELOPED TO REMOVE H2S FOR COAL SYNTHESIS GASES. THEREGENERATION PROCESS PRODUCES A STREAM OF SO2 WITH IS THEN REACTED WITH LIMESTONE. WH ...

AMONG THE MOST IMPORTANT OF THE POLLUTANTS ARISING FROM THE COMBUSTION OF COAL ARE THE NITROGEN OXIDES (NO AND NO2, OR NOX). CURRENTLY, THE ONLY CATALYTIC PROCESSES CAPABLE OF CONTROLLING NOX IN THE A ...

PHENOLIC COMPOUNDS ARE THE PRIMARY WASTEWATER TREATMENT CHALLENGE FOUND IN THE AQUEOUS EFFUENTS FROM PETROLEUM REFINERIES, COAL CONVERSION PROCESSES, PETROCHEMICAL PRODUCTION, AND THE MANUFACTURE OF P ...

METHANOL FUELED DIESELS ARE AN ATTRACTIVE MEANS OF MEETING STRINGENT 1994 DIESEL PARTICULATE STANDARDS, AND ARE A TOPICOF INTENSE INDUSTRIAL INTEREST. UNFORTUNATELY, BECAUSE OF METHANOL'S AUTOIGNITION ...

A SAFE, NONTOXIC, NONFLAMMABLE, LOW OZONE-DEPLETING ABSORPTION REFRIGERATION SYSTEM IS BEING DEVELOPED IN THIS PROJECT. THE SYSTEM DELIVERS A RELATIVELY HIGH COEFFICIENT OF PERFORMANCE (COP) IN SMALL ...

CONVENTIONAL REFRIGERATION SYSTEMS ARE LIMITED IN SEVERAL RESPECTS: NEITHER VAPOR COMPRESSION NOR ABSORPTION COOLERS ARE EFFICIENT IN SMALL-SCALE UNITS, AND MOST VAPOR COMPRESSION SYSTEMS USE FREONS ( ...

REFRIGERATION SYSTEMS FOR SHIPBOARD USE MUST BE EFFICIENT, MECHANICALLY SIMPLE, RELIABLE, SAFE, SMALL, AND LIGHTWEIGHT. CURRENT SYSTEMS MEET ALL OF THESE CRITERIA BUT USE CHLOROFLUROCARBONS (CFCS). TH ...

AN ADVANCED ABSORBENT HAS BEEN IDENTIFIED FOR SIMULTANEOUSLYREMOVING CARBON DIOXIDE, HUMIDITY, AND HEAT FROM THE GAS STREAM IN AN EXTRAVEHICULAR MOBILITY UNIT (EMU). THIS ABSORBENT ELIMINATES SEVERAL ...

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