Thistlethwaite Terence (Middlesbrough GB2) Maat Johan H. H. T. (Stockton-on-Tees GB2) Davidson Peter J. (Darlington GB2)
출원인 / 주소
Imperial Chemical Industries PLC (London GB2 03)
인용정보
피인용 횟수 :
11인용 특허 :
0
초록▼
A bed packing material, e.g. for use as a catalyst precursor, in the form of regular, preferably cylindrical, units having a multiplicity of through passages of small cross section so that the units have a low voidage, GV, a high ratio of the geometric surface area, GSA, to the volume V, of the equi
A bed packing material, e.g. for use as a catalyst precursor, in the form of regular, preferably cylindrical, units having a multiplicity of through passages of small cross section so that the units have a low voidage, GV, a high ratio of the geometric surface area, GSA, to the volume V, of the equivalent cylindrical unit having no passages, and a high ratio of GSA to the product of GV and the surface area, A, of the equivalent cylindrical unit having no passages.
대표청구항▼
A bed packing material in the form of units, each unit having (a) a multiplicity of passages of substantially uniform cross section extending lengthwise through the unit, said passages having an effective diameter of 0.03 to 1 mm, where the effective diameter is four times the cross-sectional area o
A bed packing material in the form of units, each unit having (a) a multiplicity of passages of substantially uniform cross section extending lengthwise through the unit, said passages having an effective diameter of 0.03 to 1 mm, where the effective diameter is four times the cross-sectional area of the passage divided by the perimeter of the passage cross section, and there being at least 20 passages per cm2 of the unit cross section area; (b) a substantially uniform cross section; (c) a ratio of the length, L, to the notional cross section diameter, D, of at least 0.5, said notional cross section diameter being the diameter of the circle of area equal to the cross-sectional area the unit would have if there were no passages therethrough, the minimum of said length and notional cross section diameter being at least 3 mm; the number of said passages, and their size relative to said length, L, and notional cross section diameter, D, being such that each unit has (i) a geometric voidage, GV, of not more then 0.40; (ii) a ratio of the geometric surface area, GSA, to the volume, V, of the cylinder of length L and diameter D, of at least 10 cm-1; and (iii) a ratio of GSA to the product of GV and A of at least 15, where A is the surface area of the cylinder of length L and diameter D.
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이 특허를 인용한 특허 (11)
Gupta, Ramesh; Deckman, Harry W.; Leta, Daniel P., Gas purification process utilizing engineered small particle adsorbents.
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Ravikovitch, Peter I.; Johnson, Robert A.; Deckman, Harry W.; Anderson, Thomas N., Pressure-temperature swing adsorption process for the separation of heavy hydrocarbons from natural gas streams.
Leta, Daniel P.; Kamakoti, Preeti; Deckman, Harry W.; Ravikovitch, Peter I.; Anderson, Thomas N., Temperature swing adsorption process for the separation of target species from a gas mixture.
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