A honeycomb-structured catalyst for decomposing an organic substance, which includes a catalyst particle. The catalyst particle contains a perovskite-type composite oxide represented by A.sub.xB.sub.yM.sub.zO.sub.w, where the A contains at least of Ba and Sr, the B contains Zr, the M is at least one of Mn, Co, Ni, and Fe, y+z=1, 1.001x1.05, 0.05z0.2, and w is a positive value that satisfies electrical neutrality. The toluene decomposition rate is greater than 90% when toluene is decomposed using the honeycomb-structured catalyst subjected to a heat treatment at 1200 C. for 48 hours and a gas that contains 50 ppm toluene, 80% nitrogen, and 20% oxygen as a volume concentration as a target at a space velocity of 30,000/h and a catalyst temperature of 400 C.

Calcium hydroxide-containing compositions can be manufactured by slaking quicklime, and subsequently drying and milling the slaked product. The resulting calcium hydroxide-containing composition can have a size, steepness, pore volume, and/or other features that render the compositions suitable for treatment of exhaust gases and/or removal of contaminants. In some embodiments, the calcium hydroxide-containing compositions can include a D.sub.10 from about 0.5 microns to about 4 microns, a D.sub.90 less than about 30 microns, and a ratio of D.sub.90 to D.sub.10 from about 8 to about 20, wherein individual particles include a surface area greater than or equal to about 25 m.sup.2/g.

A gas separation unit for the separation of a first gas, carbon dioxide, from a mixture, by using an adsorption/desorption process using a loose particulate sorbent material arranged in at least two stacked layers. The primary heat exchange piping is arranged on the two outer edges of the layer within the cavity extending along a longitudinal direction. Further, an essentially parallel array of secondary heat exchange pipes is provided, the secondary heat exchange pipes extending along a transverse direction. The first diameter of the secondary heat exchange pipes is at least twice as large as the second outer diameter of the secondary heat exchange pipes and the secondary heat exchange pipes are in thermal contact with sheets of metal which extend oscillating between pairwise adjacent secondary heat exchange pipes.

Methods, systems, and apparatuses for coating a material by contacting the material with a coating material and a solvent are disclosed herein. The coated material can be obtained by evaporating the solvent: by heating the coated material directly or indirectly with electromagnetic radiation; by heating with heat generated from a heat source that heats an internal container for the material to be coated and/or coated material; and/or in an interior volume of a coating container having a side wall, by heating a portion of the side wall of the coating container and/or internal container with a heat source that is positioned outside of the interior volume of the coating container.

With the invention a washing apparatus and a process for the efficient separation and recovery of methanol from waste gases loaded with methanol is proposed, wherein the invention also can be used in an integrated flow chart for the production and processing of methanol. The methanol fractions separated from the waste gases are recovered within the already existing, distillative processing of the crude methanol to pure methanol, so that no separate apparatuses are required for the recovery of the methanol from the loaded scrubber waste waters. The valuable substance methanol is recovered and the impact on the environment is reduced. By particular aspects of the invention the total degree of methanol separation can be adapted according to the locally applicable emission limit values.

The invention pertains to a finishing process for urea-comprising material, a plant for finishing urea-comprising material, a method of modifying an existing plant, and a use. Methods are disclosed for preventing the clogging of the conduit for off-gas between the finishing section and the treatment section.

There is provided a Czochralski puller installation for Si monocrystalline ingot growth, including: a Czochralski puller; a SiOx dust filter system; and a vacuum pump connected downstream of said SiOx dust filter system, the SiOx dust filter system including at least a first filtration branch having a first SiOx filter unit, and at least a second filtration branch having a second SiOx filter unit, the first filtration branch and the second filtration branch being disposed in parallel and connected to a common first connection point upstream of first and second upstream valves and to a common second connection point downstream of first and second downstream valves, the first and the second filtration branches being connected through a bypass branch having a needle valve for pressure equilibration between the first and the second filtration branches.

Contaminant treatment methods and systems are described. Methods utilize biodegradable, non-toxic materials that can carry one or more functionalities useful for the remediation of fluids such as liquid or gaseous waste streams, chemical spills, etc. The carrier materials carry one or more functional groups that can target particular contaminants of a fluid for removal and/or modification to a more benign form. Targeted contaminants can include components of gaseous and/or liquids such as, and without limitation, gaseous discharges including VOCs and potentially hazardous contaminants such as organophosphorous compounds.

To provide a transfer chamber capable of replacing a chemical filter without affecting an internal atmosphere, and shortening or eliminating stop time of a transfer process of a wafer (W) associated with replacement of the chemical filter.

The transfer chamber transfers the wafer (W) to or from a processing device (6) by using a transfer robot (2) provided thereinside, and includes a circulation path (CL1) formed inside of a transfer chamber (1) to circulate gas, a chemical filter unit (7) provided in the midstream of the circulation path (CL1), and a connecting and disconnecting means (8) which switches connection and disconnection of the chemical filter unit (7) to and from the circulation path (CL1).

A system for reducing the release of hydrocarbons emitted from a hydrocarbon source into the atmosphere includes a hydrocarbon supply conduit configured to receive the emitted hydrocarbons. In addition, the system includes an air supply conduit coupled to an air source. Further, the system includes a combustion device coupled to an outlet end of the hydrocarbon supply conduit and an outlet end of the air supply conduit. The combustion device is configured to receive the hydrocarbons from the hydrocarbon supply conduit and the air from the air supply conduit, and combust the hydrocarbons. Still further, the system includes a catalytic converter spaced apart from the combustion device and a transfer conduit extending from an outlet of the combustion device to an inlet of a catalytic converter. The catalytic converter is configured to receive the combustion products and any un-combusted hydrocarbons from the transfer conduit, and oxidize the un-combusted hydrocarbons.