Compositions and methods for scavenging h2s

A technology of composition and compound, applied in the direction of drilling composition, lubricating composition, chemical instrument and method, etc., can solve the health hazards of hydrogen sulfide and other problems

Active Publication Date: 2019-11-12
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
Comparison scheme
Effect test

preparation example Construction

[0055] A1- Preparation of sugarcane liquid

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

[0057] A2-H 2 S scavenger performance

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

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Abstract

A method of treating a fluid includes the steps of: (a) contacting a fluid containing at least one sulfide with a sulfide-reducing amount of a composition comprising an lignocellulosic liquor comprising one or more lignin-derived compounds and one or more hemicellulose sugar monomers and/or oligomers and (b) allowing the lignocellulosic liquor to react with at least a portion of the sulfide in thefluid.

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 sulfide ions often exist in In groundwater where the crude oil is removed together, in the oil itself, and in 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 pipelines. [0002] The presence of hydrogen sulfide is annoying because it may react with hydrocarbons or fuel system components. In addition, hydrogen sulfide gas generates a strong acid environment, and metal surfaces are exposed to these strong acid environments. Due to the presence of hydrogen sulfide and its salts, corrosion may occur in pipelines from oil wells and in metal equipment. Water droplets may form on the inside of the gas pipeline or on the surface of the equipment, and may create corros...

Claims

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Application Information

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Patent Type & Authority Applications(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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