Adsorption Lab

This Micromeritics ASAP 2020 is a gas adsorption instrument designed for core samples with very small pore sizes that range between 3 to 200 nanometers. It is mostly useful to measure the pore sizes of unconventional reservoir rocks. It has two outgassing and one analysis ports. Depending on the pore sizes, each sample measurement can take from a few hours (only surface area) to a few days (nanometer-sized pores in organic matter). The samples are measured in their powder form, and the gases that can be used for this instrument are Argon, N2, Hexane, CO2 and water vapor. The samples are first outgassed for 24 hours a 200°C under vacuum conditions while flowing inert gas through the sample to remove any contaminant gas. Then the sample is subjected to increasing partial pressures to obtain a full isotherm. The following is a list of parameters which can be measured using ASAP 2020:

1. Specific surface area
2. Isotherm – adsorption & desorption
3. Pore size distribution
4. Total pore volume
5. Average pore size

The Quadrasorb EVO/SI is a versatile gas adsorption instrument designed for high throughput. With four independent analysis stations it is capable of analyzing four samples simultaneously. Quadrasorb EVO/SI is available in a KR/MP configuration, which is equipped with a turbomolecular pump and 10-torr or 1- torr pressure transducer for measuring low surface area samples with krypton and microporous samples with nitrogen or argon. The following is a partial list of important parameters which can be determined from Quadrasorb Adsorption experiments:

1. Specific surface area
2. Isotherm – adsorption & desorption
3. Pore size distribution
4. Total pore volume
5. Average pore size

Flovacdegasser is used in conjunction with the Quadrasorb EVP/SI for outgassing at vacuum conditions purposes.