Optimization of acid strength and total organic carbon in acid processes
AssigneeExxon Research & Engineering Co.
InventorsRobert John Louis Chimenti, Gerald Martin Halpern, Bernie John Pafford
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Abstract
The present invention is a method to determine the water content and/or total organic carbon content in a petrochemical stream including water, organic carbon and acid comprising irradiating a feed stream including an acid, water, and organic carbon, with optical radiation; determining the optical absorption of the feed stream for at least two selected wavelengths; and determining the weight percent of the water and/or organic carbon content from the optical absorption.
Claims7
A method to determine the water content and/or organic carbon content in a stream including water, organic carbon and acid comprising:
- a. irradiating a feed stream including an acid, water, and organic carbon (heavy hydrocarbons which become insoluble in a petrochemical process), with optical radiation,
- b. determining the optical absorption of said feed stream for at least two selected wavelengths, the selected wavelengths chosen according to whether water content or organic carbon is being determined;
- and
- c. determining the weight percent of said water and/or organic carbon content from said optical absorption.
A system to control acid-water content and/or organic carbon content in a petrochemical stream including water, organic carbon (heavy hydrocarbons which can become insoluble in a petrochemical process), and acid feed stream comprising:
- a. means for irradiating said petrochemical stream including an acid, water, and organic carbon, with optical (visible and/or near infrared) radiation;
- b. means for determining the absorptivity of said feed stream for at least two selected wavelengths, the selected wavelengths chosen according to whether water content or organic carbon is being determined;
- c. means for determining the weight percent of said water and/or organic carbon content from said absorptivity wherein said water content is determined using a non-linear regression model;
- and
- d. means for determining acid strength and/or organic carbon content from said weight percents;
- and
- e. means for adjusting the water content and/or acid content of said petrochemical stream.
Dependencies are inferred from the claim text.