Nalco Chemical Company

Ecolab USA Inc.

Nalco Company

Sam Ferguson

Glenn L Scattergood

Jin Wang

Darrell D Reese

Nigel P Hilton

Russell C Strong

Elizabeth Babaian-Kibala

John G Hyatt

Joe Scott Walker

Darrel D Reese

Kathryn G Burns

A method of correcting measurements of a chemical sensor used in an industrial facility. The method involves correcting for errors known to occur in the steady state and the dynamic state for specifically recognized situations. This method allows for correcting errors that occur due to deadtime, false zero measurements, and non-linear disturbances. The method combines automated measurement techniques and human know how to progressively learn and refine the accuracy of the corrections.

Development and implementation of analyzer based control system and algorithm

A method of optimizing system parameters in a crude unit to reduce corrosion and corrosion byproduct deposition in the crude unit is disclosed and claimed. The method includes measuring or predicting properties associated with the system parameters and using an automated controller to analyze the properties to cause adjustments in the chemical program to optimize the system parameters. Adjusting the system parameters effectively controls corrosion in the crude unit by reducing the corrosiveness of a fluid in the process stream and/or by protecting the system from a potentially corrosive substance. System parameter sensing probes are arranged at one or more locations in the process stream to allow accurate monitoring of the system parameters in the crude unit.

Method of reducing corrosion and corrosion byproduct deposition in a crude unit

Development and implementation of analyzer based on control system and algorithm

An apparatus of provided for simulating corrosion activity of a high temperature liquid stream. The apparatus includes a canister in which is positioned a plug, occupying part of the internal volume of the canister. A stream of high temperature liquid enters the canister through an inlet, flows around the plug, and exits the canister through an outlet. The volume and configuration of the plug may be varied to simulate corrosion activity under various flow regimes. Probes may be placed in the liquid stream to detect corrosion activity and temperature. Several canisters may be arranged in series, and corrosion activity may be simulated in each canister simultaneously to determine effects of various parameters such as liquid impingement, velocity, and temperature on corrosion activity.

High temperature corrosion simulator

A method of producing naphthenic acid having the formula ##STR1## where R.sub.1 is H or Me,

Naphthenic acid amides

A naphthenic acid amide having the formula: ##STR1## where R is the hydrocarbon portion of a naphthenic acid,

naphthenic acid amides

A process for substantially neutralizing the volatile acid gases and water present in the condensate of a distilling pertroleum product which comprises treating the distilling product prior to the condensation thereof with at least one amine having a boiling point below 95.degree. C. in an amount sufficient to substantially neutralize all of the volatile acid gases present with said petroleum product

Volatile amines for treating refinery overhead systems

1,2-imidazolines are prepared by reacting gas oils containing naphthenic acid with polyamines. This reaction, in addition to forming imidazolines, reduces the acidity of the starting gas oils.

Process for preparing naphthenic acid 1,2-imidazolines

A method of neutralizing the organic acidity in petroleum and petroleum fractions to produce a neutralization number less than 1.0 whereby they are rendered suitable as lube oil feed stocks which comprises treating said heavy gas oils with a neutralizing amount of monoethanolamine to form an amine salt with the organic acids and then heating the thus-neutralized petroleum or petroleum fraction at a temperature and for a time sufficient to convert the amine salts to amides.

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Sugar Land, TX, United States of America

Sam Ferguson