The present invention provides a process for the hydrogenation of polyunsaturated hydrocarbon compounds, in particular di-olefins and alkynes, more particularly di-olefins, said process comprising contacting a feed comprising one or more polyunsaturated hydrocarbon compounds with a catalyst comprising copper and carbon in the presence of hydrogen, preferably wherein the catalyst is a copper catalyst on a carbon-containing support. The present invention also provides a process for producing a copper catalyst on a carbon-containing support and the use of a copper catalyst on a carbon-containing support to increase the selectivity towards di-olefin hydrogenation over mono-olefin hydrogenation in a process for hydrogenation of one or more di-olefins.

A conformally metal-coated glass capillary array and method of fabricating same. A glass capillary array is provided. The glass capillary array includes a plurality of glass capillaries. The glass capillary array includes a plurality of glass capillary array walls. The plurality of glass capillary array walls define a plurality of holes. The plurality of holes includes a plurality of hole peripheries. An electroless metallization catalyst is provided around the plurality of hole peripheries. A first metal is electroless plated on the plurality of glass capillary array walls using the electroless metallization catalyst. A second metal is electroplated on the electroless-plated, first metal, or the second metal is electroless-plated on the electroless-plated, first metal.

A conformally metal-coated glass capillary array and method of fabricating same. A glass capillary array is provided. The glass capillary array includes a plurality of glass capillaries. The glass capillary array includes a plurality of glass capillary array walls. The plurality of glass capillary array walls define a plurality of holes. The plurality of holes includes a plurality of hole peripheries. An electroless metallization catalyst is provided around the plurality of hole peripheries. A first metal is electroless plated on the plurality of glass capillary array walls using the electroless metallization catalyst. A second metal is electroplated on the electroless-plated, first metal, or the second metal is electroless-plated on the electroless-plated, first metal.

The present invention provides a process of catalytic depolymerization of polystyrene involving a spherical catalyst, an apparatus for carrying out the depolymerization, recovering the aromatic rich liquid product and recycling the catalyst without any decrease in the catalytic performance. Further, the present invention provides that the aromatic rich liquid product includes styrene, xylene, benzene, ethyl benzene, with styrene content greater than 65%. Additionally, the catalyst involved in the depolymerization process is a spherical catalyst that is easily recovered from coke/char formed during the process and is recycled and reused without any decrease in the catalytic performance.

The present invention provides a process of catalytic depolymerization of polystyrene involving a spherical catalyst, an apparatus for carrying out the depolymerization, recovering the aromatic rich liquid product and recycling the catalyst without any decrease in the catalytic performance. Further, the present invention provides that the aromatic rich liquid product includes styrene, xylene, benzene, ethyl benzene, with styrene content greater than 65%. Additionally, the catalyst involved in the depolymerization process is a spherical catalyst that is easily recovered from coke/char formed during the process and is recycled and reused without any decrease in the catalytic performance.

The present disclosure is directed to a system for treating an exhaust gas stream from an engine, which includes a diesel oxidation catalyst (DOC) located downstream of the engine and adapted for oxidation of hydrocarbons and carbon monoxide, an injector adapted for the addition of a reductant to the exhaust gas stream located downstream of the DOC, a catalyzed soot filter (CSF) located downstream of the injector, and a selective catalytic reduction component adapted for the oxidation of nitrogen oxides located downstream of the CSF. The CSF is adapted for oxidizing hydrocarbons and includes a selective oxidation catalyst composition on a filter with high selectivity ratio for hydrocarbon oxidation:ammonia oxidation (e.g., at least 0.6).

The present disclosure relates to mixed-bed systems comprising a particulate dehydrogenation catalyst based on one or more certain group 13 and 14 elements that further include additional metal components and a particulate non-catalytic additive comprising a heat-generating material, and to methods for dehydrogenating hydrocarbons using such systems. One aspect of the disclosure provides a mixed-bed system comprising a particulate dehydrogenation catalyst and a particulate non-catalytic additive. The particulate dehydrogenation catalyst includes a primary species P1 selected from Ga, In, TI, Ge, Sn Pb, and any mixture thereof; a primary species P2 selected from the lanthanides and any mixture thereof; a promoter M1 selected from Ni, Pd, Pt, La, Ir, Zn, Fe, Rh, Ru, Mn, Co, W, and any mixture thereof; and a promoter M2 selected from Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, and any mixture thereof on a support S1 selected from silica, alumina, zirconia, titania, yttria, and any mixture thereof. The particulate non-catalytic additive includes a heat-generating material and a carrier selected from inorganic oxides, clays, and any mixture thereof.

The present disclosure relates to mixed-bed systems comprising a particulate dehydrogenation catalyst based on one or more certain group 13 and 14 elements that further include additional metal components and a particulate non-catalytic additive comprising a heat-generating material, and to methods for dehydrogenating hydrocarbons using such systems. One aspect of the disclosure provides a mixed-bed system comprising a particulate dehydrogenation catalyst and a particulate non-catalytic additive. The particulate dehydrogenation catalyst includes a primary species P1 selected from Ga, In, TI, Ge, Sn Pb, and any mixture thereof; a primary species P2 selected from the lanthanides and any mixture thereof; a promoter M1 selected from Ni, Pd, Pt, La, Ir, Zn, Fe, Rh, Ru, Mn, Co, W, and any mixture thereof; and a promoter M2 selected from Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, and any mixture thereof on a support S1 selected from silica, alumina, zirconia, titania, yttria, and any mixture thereof. The particulate non-catalytic additive includes a heat-generating material and a carrier selected from inorganic oxides, clays, and any mixture thereof.

A method for producing neopentyl glycol comprising a step of perforning a hydrogenation reaction by injecting a hydroxypivaldehyde (HPA) solution and hydrogen into a hydrogenation reactor, and a step of adjusting the content of H.sub.2O contained in the hydroxypivaldehyde solutionto 6.0% by weight or less before the hydroxypivaldehyde solution being injected into the hydrogenation reactor.

Composites of silicon and various porous scaffold materials, such as carbon material comprising micro-, meso- and/or macropores, and methods for manufacturing the same are provided. The compositions find utility in various applications, including electrical energy storage electrodes and devices comprising the same.