Catalyst sampling system
AssigneeExxonMobil Chemical Patents Inc.
InventorsNicolas P. Coute, James R. Lattner, Jeffrey Scott Smith, Carl Edward Manning
Life of this patent
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Abstract
A method and apparatus are provided for obtaining a reproducible sample of solid particles. The reproducible sample is obtained by receiving solid particles into a collection system that includes a sheltered volume. Solid particles that settle outside of the sheltered volume are purged from the collection system. The remaining solid particles inside the sheltered volume correspond to the reproducible sample.
Claims33
A method of collecting a predetermined volume of a solid material in particulate form having a particle density of from about 50 to about 200 pounds/cubic foot, from a reactor system, comprising the steps of:
- a) receiving solid material from a reactor system;
- b) collecting the solid material in a sample collection system;
- c) passing a gas through an unsheltered volume within the sample collection system to remove a portion of the solid material from the sample collection system;
- d) leaving a predetermined volume of the solid material within a sheltered volume within the sample collection system as the gas is passed through the collection system;
- and
- e) extracting the predetermined volume of the solid material left within the sample collection system.
A method for sampling solid particles having a narticle density of from about 50 to about 200 pounds/cubic foot. comprising the steps of:
- a) receiving a sample of solid particles by entraining the sample of solid particles within a gas flow and drawing the entrained solid particles into a collection system, wherein the sample comprises a first portion collected in a sheltered volume within said collection system, and a second portion;
- b) separating the second portion of the sample from the first portion of the sample within said collection system;
- and
- c) extracting the first portion of the sample from said collecting system.
An apparatus for obtaining a sample of solid particles, comprising:
- a) a particle intake conduit connected to a source of solid particle within a reactor, said solid particles having a particle density of from about 50 to about 200 pounds/cubic foot;
- b) a sheltered volume connected to the particle intake conduit, wherein the connection between the particle intake conduit and the sheltered volume defines a first flow path;
- c) a purge source connected to the first flow path between the particle intake conduit and the sheltered volume;
- and
- d) an exhaust connected to the first flow path, wherein the connection between the exhaust and the first flow path defines a second flow path, at least a portion of the first flow path and the second flow path are in common, and the second flow path does not pass through the sheltered volume.
A method for obtaining a sample of solid particles, the method comprising the steps of:
- a) providing a collection system comprising a particle intake conduit connected to a source of solid particles having a particle density of from about 50 to about 200 pounds/cubic foot, a source of purge gas, an exhaust, a sheltered volume, a first flow path connecting the particle intake conduit to the sheltered volume, and a second flow path connecting the source of purge gas and the exhaust, wherein at least a portion of the first flow path and second flow path are in common, and wherein the second flow path does not pass through the sheltered volume;
- b) receiving a sample of solid particles into the sheltered volume via the first flow path;
- c) flowing purge gas through the common portion of the flow paths;
- and
- d) extracting the sample of solid particles from the sheltered volume.
Dependencies are inferred from the claim text.