摘要:
A method of removing mercaptans, heterocyclic sulfur compounds, and/or COS from a fluid stream comprising contacting the fluid stream with a sorbent comprising a mixture of Cu 2 O and metallic copper.
摘要:
A method of removing mercury and/or sulfur from a fluid stream comprising contacting the fluid stream with a sorbent comprising a core and a porous shell formed to include a plurality of pores extending therethrough and communicating with the core. The core comprises a copper compound selected from the group consisting of a basic copper oxysalt, a copper oxide, and a copper sulfide.
摘要:
The present invention provides an essentially dry method for preparation of enhanced alumina powders. The first step involves rapid calcination of an aluminum compound to produce alumina powder. The alumina powder is mixed with solid ammonium carbonate and a small amount of water. This mixture heats itself although some external heat is helpful to produce ammonium aluminum hydroxycarbonate (dawsonite-type) NH4AlCO3(OH)2 upon curing which is then decomposed to produce enhanced alumina having a specific desired morphology and nano-sized dimensions.
摘要:
Mixing small amounts of an inorganic halide, such as NaCl, to basic copper carbonate followed by calcination at a temperature sufficient to decompose the carbonate results in a significant improvement in resistance to reduction of the resulting copper oxide. The introduction of the halide can be also achieved during the precipitation of the carbonate precursor. These reduction resistant copper oxides can be in the form of composites with alumina and are especially useful for purification of gas or liquid streams containing hydrogen or other reducing agents.
摘要:
A method of removing heterocyclic sulfide impurities from a fluid stream is presented. The method comprised contacting the fluid stream with a sorbent comprising metallic copper.
摘要:
A process for removal of trace chloride contaminants from a reactor effluent in a catalytic dehydrogenation process is described. The reactor effluent is compressed in a compressor to provide a compressed effluent. The compressed effluent is introduced from the compressor into a chloride treater. In the chloride treater, trace chloride contaminants in the compressed effluent are adsorbed to provide a treated effluent. The treated effluent is cooled in a cooler.
摘要:
A method of removing 0 2 , CO, H 2 , mercury, and/or sulfur from a fluid stream using a sorbent comprising metallic copper. The metallic copper is formed from direct reduction of a supported copper oxysalt by exposure to a reducing agent at a temperature of between 40°C and 220°C.