Compositions and methods for scavenging h2s

A composition and compound technology, applied in drilling compositions, lubricating compositions, chemical instruments and methods, etc., can solve problems such as hydrogen sulfide health hazards

Active Publication Date: 2022-03-11
RHODIA POLIAMIDA E ESPECIALIDADES LTDA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Uncontrolled emissions of hydrogen sulfide cause serious health hazards

Method used

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  • Compositions and methods for scavenging h2s
  • Compositions and methods for scavenging h2s
  • Compositions and methods for scavenging h2s

Examples

Experimental program
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preparation example Construction

[0055] Preparation of A1-Sugarcane Liquid

[0056] Sugarcane liquor was obtained by: (i) subjecting bagasse to hydrothermal pretreatment at 160°C for 1 h; (ii) subjecting the liquor produced in the first step to acid hydrolysis at 120°C for 30 minutes; (iii) The resulting liquid was filtered and the pH was adjusted to 5.0.

[0057] A2-H 2 Performance of S scavengers

[0058] First, a control experiment was performed - ie a blank system without any scavenger. The apparatus used to perform the experiments included a 2 A glass tube for S, which is connected in series with two glass tubes to capture the gas produced. H is produced by the reaction between FeS and HCl 2 S. Quantification of generated H by FeS uptake 2 The amount of S. The solution with the scavenger to be evaluated (or no scavenger in the case of control experiments) was placed in the first capture glass tube and the NaOH solution was placed in the second capture glass tube. H at ambient temperature at a...

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PUM

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Abstract

A method of treating a fluid, the method comprising the steps of: (a) contacting a fluid comprising at least one sulfide compound with a composition comprising a lignocellulosic liquor in a reduced amount of sulfide, the lignocellulosic liquor comprising one or lignin-derived compounds and one or more hemicellulose sugar monomers and / or oligomers, and (b) reacting the lignocellulosic liquor with at least a portion of the sulfide in the fluid.

Description

Background technique [0001] In many industrial fields, and especially in the drilling, production, transportation, storage and processing of crude oil and gas, and in the storage of residual oil, hydrogen sulfide and / or sulfide and / or hydrogen sulfide ions are often present in association with The ground water from which the crude oil is removed, the oil itself, and the gas associated with such water and oil. Hydrogen sulfide (H 2 S) and its salts can also be found in pipelines from oil wells and gas lines. [0002] The presence of hydrogen sulfide is objectionable because it may react with hydrocarbons or fuel system components. In addition, hydrogen sulfide gas creates a strongly acidic environment, and metal surfaces are exposed to these highly acidic environments. Corrosion may occur in piping from oil wells and in metal equipment due to the presence of hydrogen sulfide and its salts. Water droplets may form on the inside of gas lines or on the surfaces of equipment, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/10C09K8/532
CPCC09K8/10C09K8/532C09K2208/20C02F1/683C02F2101/101C09K8/035C09K8/54C09K8/86C10M159/12E21B41/02C10N2030/12
Inventor E.里西托雷斯E.莱米罗德古斯V.费朗
Owner RHODIA POLIAMIDA E ESPECIALIDADES LTDA
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