Patent ID: 8361197

Claim:
A zeolite membrane-provided article provided with a zeolite membrane, the zeolite membrane-provided article having an N 2 gas permeation speed at room temperature of 1.0×10 −6 mol·m −2 ·s −1 ·Pa −1 or more and a permeation speed ratio of 1,3,5-trimethylbenzene/N 2 at room temperature of 0.17 or more, wherein the zeolite membrane-provided article is free from dyeing caused by the impregnation with Rhodamine B, and wherein pore sizes of pores inherent to zeolite crystals are 0.76 nm or less and pore sizes of pores other than the pores inherent to zeolite crystals are 0.76 nm to 2 nm.