Abstract:
An air treatment system is disclosed which comprises a dehumidification unit (10) comprising a liquid desiccant system comprising liquid desiccant for dehumidifying process air; an indirect evaporative cooling unit (100) for cooling process air from the dehumidification unit and for cooling the liquid desiccant; and a vapour compression unit (200) comprising a compressor (201), a condenser (202) and an evaporator (206) for further cooling process air from the indirect evaporative cooling unit. A preferred desiccant is potassium formate.
Abstract:
A garment incorporates a detachable garment strip. The garment has a first series of releasable fasteners attached to a garment part, and a second series of releasable fasteners attached to the garment part and spaced apart from the first series of releasable fasteners. The detachable garment strip is designed to overlie the garment part between the first and second series of releasable fasteners. The garment strip has first and second strip edges, a third series of releasable fasteners attached along the first strip edge, and a fourth series of releasable fasteners attached along the second strip edge.
Abstract:
A method for scrubbing off-gas generated in production units for the manufacture of acetic acid and an apparatus therefor. The method comprises supplying off-gas and acetic acid solvent at a tick-over flow rate to an acetic acid scrubbing unit, withdrawing off-gas from the scrubbing unit, supplying withdrawn off-gas to a methanol scrubbing unit, scrubbing the off-gas therein with methanol solvent and withdrawing scrubbed off-gas from the methanol scrubbing unit.
Abstract:
Rosin esters are provided. The rosin esters can exhibit improved color ( e.g. , the rosin ester can have a neat Gardner color of 8.5 or less), improved oxidative stability ( e.g. , when 1000 ppm or less of an antioxidant is present in combination with the rosin ester, the rosin ester can exhibit an oxidative-induction time at 130°C of at least 75 minutes), improved color stability ( e.g. , the rosin ester can exhibit less than a 10% change in neat Gardner color when heated to a temperature of 160°C for a period of three hours), or combinations thereof. Also provided polymeric compositions comprising the rosin esters, as well as methods of making the rosin esters.
Abstract:
Rosin esters are provided. The rosin esters can exhibit improved color ( e.g ., the rosin ester can have a neat Gardner color of 4 or less), improved oxidative stability ( e.g ., when 1000 ppm or less of an antioxidant is present in combination with the rosin ester, the rosin ester can exhibit an oxidative-induction time at 130°C of at least 30 minutes), improved color stability ( e.g ., the rosin ester can retain a neat Gardner color of 5 or less when heated to a temperature of 160°C for a period of three hours), or combinations thereof. Also provided polymeric compositions comprising the rosin esters, as well as methods of making the rosin esters.
Abstract:
A method of forming a metal-containing film by atomic layer deposition is provided herein. The method comprises using (a) at least one metal fluorinated β-diketonate precursor; and (b) a co-reagent comprising at least one optionally-substituted hydrazine.
Abstract:
A method of separating a first gas component from a feed gas mixture comprising the first gas component and a second gas component using a SAPO-34 molecular sieve membrane. Periodically removing unwanted components that are absorbed on the membrane may be accomplished by passing a regeneration gas stream through the membrane.
Abstract:
The invention concerns carbon molecular sieve membranes ("CMS membranes"), and more particularly the use of such membranes in gas separation. In particular, the present disclosure concerns an advantageous method for producing CMS membranes with desired selectivity and permeability properties. By controlling and selecting the oxygen concentration in the pyrolysis atmosphere used to produce CMS membranes, membrane selectivity and permeability can be adjusted. Additionally, oxygen concentration can be used in conjunction with pyrolysis temperature to further produce tuned or optimized CMS membranes.
Abstract:
A method of preparing a supported gas separation membrane, comprising: preparing crystalline seeds from a synthesis mixture comprising an aluminum source, a phosphorous source, a silicon source, at least one organic templating agent and water; applying the seeds to a porous support to produce a seeded porous support; contacting the seeded porous support with a synthesis gel under hydrothermal synthesis conditions to produce a coated porous support; and calcining the coated porous support is described. A supported gas separation membrane made by this method is also described.
Abstract:
A method of making a supported gas separation molecular sieve membrane. In this method a porous support, which is preferably pretreated, is contacted with a molecular sieve synthesis mixture under hydrothermal synthesis conditions. The contacting step is conducted for a shortened crystallization time period. The resulting coated porous support is calcined to yield the supported gas separation molecular sieve membrane having particularly good gas separation characteristics.