In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, embodiments of the present disclosure, in one aspect, relate to materials that can be used for gas (e.g., CO.sub.2) capture, methods of making materials, methods of capturing gas (e.g., CO.sub.2), and the like.

A high-efficiency method for removing sulfur and mercury of coal-fired flue gas, and an apparatus thereof. The method comprises: activating, by using water vapor, lime or Ca(OH).sub.2 used as a sulfur removal and mercury removal absorbent and mixing the lime or Ca(OH).sub.2 with flue gas; conveying, by using water vapor, part of a by-product to a top of a reaction tower and mixing the part of the by-product with the flue gas, so as to strengthen the sulfur removal and mercury removal effect; the flue gas entering a bag type or electric bag compound dust remover after sulfur removal and mercury removal in the reaction tower, and conveying part of the collected by-product to the reaction tower for cycle use.

A method for reducing the level of occluded alkali metal cations from an MSE-framework type molecular sieve comprises either (a) contacting the molecular sieve with a solution containing ammonium ions at a temperature of at least about 50 C. to ammonium-exchange at least part of the occluded potassium ions or (b) contacting the molecular sieve with steam at a temperature of at least about 300 C. and then subjecting the steamed molecular sieve to ammonium exchange.

Provided are a hygroscopic material having a transparent base material, a upper layer including a vinyl acetate resin, and a hygroscopic layer which is arranged between the base material and the upper layer to be adjacent to the upper layer and includes a moisture-absorbing agent which is an inorganic salt, and a resin, a method for producing the same, and a packaging material.

The invention relates to an on-site medical gas production plant (100) comprising a unit (50) for purifying gas, such as air, a first compartment (A) for storing purified gas, and a main gas line (10) fluidically connecting the gas purification unit (50) to the said first storage compartment (A). It furthermore comprises a three-way actuated valve (VA) arranged on the main gas line (10) upstream of the first storage compartment (A), and furthermore connected to the atmosphere (at 12) via a vent line (11), as well as an operating device (4) which controls at least the three-way actuated valve (VA), and at least a first gas analysis device (D1) of which a first measurement line (29) is fluidically connected (at 28) to the main line (10), upstream of the three-way actuated valve (VA), and which is electrically connected to the said operating device (4).

The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.

Device for solid-phase microextraction and analysis of substances to be analyzed, in particular in a gas chromatograph, with at least one collector, which is made of sorbent and/or adsorbent material and is placed on a rod-like support, and with at least one sample container, which is sealed with a pierceable partition wall and into which the collector is introduced piercing the partition wall for a sampling time, wherein the sealing of the sample container is assembled from the pierceable partition wall and a clamping ring, which can be mounted on the sample container and presses the partition wall together with a sealing element onto an upper rim of the sample container, and which comprises a socket in which a fitting of a transport adapter which is attached to a handling end of the rod-like support can be anchored detachably and with sealing surface pressure after the collector is inserted into the sample container following piercing the partition wall.

Articles including a solid porous material having a selenium nanomaterial bound to a surface of and within the solid porous material. The article may be a include no polymeric stabilizer or proteinaceous stabilizer. The solid porous material may be a sponge, a film, a fabric, a non-woven material, or a metal-organic framework (MOF), or a combination thereof. The article may be produced by treating a solid porous material with an aqueous selenous acid solution and heating the solid porous material to form the selenium nanomaterial on the surface of and within the solid porous material.

A sorbent composition with improved acid gas reactivity comprising calcium hydroxide particles is provided. In the calcium hydroxide composition, the amount of time it takes the calcium hydroxide particles to neutralize in citric acid of a mass greater than 10 times the mass of the calcium hydroxide particles is less than 10 seconds; about 90% of the calcium hydroxide particles are less than or equal to about 10 microns; and the calcium hydroxide particles have a BET surface area of about 18 m.sup.2/g or greater.

Porous structures are made from compositions that include hollow glass bodies and an inorganic powder. The inorganic powder may act as a rigid frame member, a crystallization agent, or both, which reduces the shrinkage of the porous structures during firing. The porous structures made therefrom have an open porosity of greater than 70% and reduced shrinkage of less than 10% compared to the green structures prior to firing. Methods for firing the green structures made from the compositions are also disclosed, the firing methods including reducing a temperature ramping rate of the green structures during a crystallization temperature range of the glass of the hollow bodies.