ABSORBENT MATERIAL FOR LOW-MOLECULAR-WEIGHT ORGANIC GAS AND FUEL VAPOR TREATMENT APPARATUS USING SAME
First Claim
1. A low-molecular-weight organic gas absorbent material comprisinga porous material having an average pore size of 10 to 100 nmimpregnated with one or more organic compounds having a boiling point of 200°
- C. or more, and selected from aliphatic alcohols, carboxylic acids, ketones, ethers, esters and aromatic hydrocarbons each of which has unsaturated carbon chain,in a proportion of 10 wt % or more based on the porous material, wherein the organic compounds are in the form of liquid or semi-solid at an ordinary temperature.
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Abstract
Provided are a low-molecular-weight organic gas absorbent material including a porous material having an average pore size of 10 to 200 nm impregnated with one or more organic compounds having 10 or more carbon atoms in a proportion of 10 wt % or more based on the porous material, and a fuel vapor treatment apparatus for an internal combustion engine using this low-molecular-weight organic gas absorbent material. This low-molecular-weight organic gas absorbent material sufficiently absorbs and removes low-molecular-weight organic gases even for a porous material having large pores which cannot adsorb low-molecular-weight organic gases such as butane and the like.
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Citations
15 Claims
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1. A low-molecular-weight organic gas absorbent material comprising
a porous material having an average pore size of 10 to 100 nm impregnated with one or more organic compounds having a boiling point of 200° - C. or more, and selected from aliphatic alcohols, carboxylic acids, ketones, ethers, esters and aromatic hydrocarbons each of which has unsaturated carbon chain,
in a proportion of 10 wt % or more based on the porous material, wherein the organic compounds are in the form of liquid or semi-solid at an ordinary temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- C. or more, and selected from aliphatic alcohols, carboxylic acids, ketones, ethers, esters and aromatic hydrocarbons each of which has unsaturated carbon chain,
Specification