SU889063A1

SU889063A1 - Method of obtaining hydrogen sulphide absorber

Info

Publication number: SU889063A1
Application number: SU782637684A
Authority: SU
Inventors: Юрий Николаевич Соколов; Борис Васильевич Якубенко; Татьяна Яковлевна Депутатова
Original assignee: Нижневолжское Территориальное Геологическое Управление
Priority date: 1978-07-03
Filing date: 1978-07-03
Publication date: 1981-12-15

Description

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Изобретение относитс к получению поглотителей дл очистки газов и водных растворов от сероводорода и может быть использовано при бурении нефт ных и газовых скважин дл нейтрализации сероводорода в буровых растворах.The invention relates to the production of scavengers for the purification of gases and aqueous solutions from hydrogen sulfide and can be used in the drilling of oil and gas wells to neutralize hydrogen sulfide in drilling fluids.

Известен способ получени нейтрализатора сероводорода на основе оки-, си цинка или окисей цинка и меди, сущность которого заключаетс в том, что через суспензию технической окиси цинка в амг-шачной воде барботируют двуокись углерода. В полученный раствор или суспензию ввод т, при необходимости , соединени меди, обрабатывшот нагретым воздухом с последующим отделением осадка углекислых основных солей сушкой, прокалкой и формированием fl- .A known method for producing a hydrogen sulfide neutralizer based on oxide, zinc oxide or zinc and copper oxides, the essence of which is that carbon dioxide is bubbled through a slurry of technical zinc oxide in amgchase water. Into the resulting solution or suspension, if necessary, copper compounds are added, heated with heated air, followed by separation of the carbonate basic salts precipitate by drying, calcining and forming fl-.

Недостатком данного способа вл етс его сложность и низка нейтрализующа способность получаемого продукта . Кроме того, получаемые поThe disadvantage of this method is its complexity and low neutralizing ability of the obtained product. In addition, received by

данному способу нейтрализаторы не обладают способностью, к регенерации.This method neutralizers do not have the ability to regenerate.

Наиболее близким к изобретению по технической сущности и достигаемому результату вл етс способ получени поглотителей сероводорода путем смещивани хлорного железа или железного купороса с водным раствором каустической соды, бикарбоната натри или кальцинированной соды до рН среды 7-8 и сушку поглотител 2 .The closest to the invention according to the technical essence and the achieved result is a method of obtaining hydrogen sulphide scavengers by displacing ferric chloride or iron sulphate with an aqueous solution of caustic soda, sodium bicarbonate or soda ash to pH 7-8 and drying the absorber 2.

Недостатком данного способа вл етс то, что получаемый нейтрализатор обладает недостаточно высокой нейтрализующей способностью, котора не превьшает 400-450 мг сероводорода на 1 кг нейтрализатора.The disadvantage of this method is that the resulting neutralizer does not have a sufficiently high neutralizing ability, which does not exceed 400-450 mg of hydrogen sulfide per 1 kg of neutralizer.

Цель изобретени - повышение поглотительной емкости целевого продукта .The purpose of the invention is to increase the absorption capacity of the target product.

Claims

The goal is achieved by the method of obtaining a hydrogen sulfide scavenger, which includes the treatment of iron oxides with hydrochloric acid, neutralization of the product with a pH to pH and drying of the product, according to which iron oxides are treated with hydrochloric acid in a 2: 1 ratio, respectively, followed by stirring and diluting the product with water before neutralizing it. . In this case, stirring is carried out for 30-60 minutes and water for dilution is fed in 1.5-3-fold quantity. The resulting absorber of hydrogen sulfide has a high absorptive capacity, which is 700,750 mg of hydrogen sulfide per 1 g of neutralizer, and the absorption capacity of the resulting neutralizer is regenerated by blowing it with oxygen or air. Example. 100 cm of water are poured into the container and 300 g of magnetite powder (80 wt.% Ferrous oxide) are added and mixed mechanically. Then fe this container is added 100 cm of concentrated hydrochloric acid. The resulting mass is mechanically stirred for 60 minutes, diluted with water in two times and poured into PO cm 40% NaOH solution, adjusted to pH 7. After that, the solid phase is filtered 34 and dried at 1 g of the resulting absorber has a specific surface of 4, 25 k and neutralizes 740 mg of hydrogen sulfide,. Claim 1, A method for producing a hydrogen sulfide scavenger, including treating iron oxide with hydrochloric acid, neutralizing the product obtained with an alkali to pH 7-8, drying the product, characterized in that, in order to increase the absorption capacity of the target product, iron oxides hydrochloric acid in the ratio of 2: 1, respectively, followed by stirring and diluting the product with water before neutralization. 2, Pop method, 1, characterized in that the mixing is carried out for 30-60 minutes, and the water for dilution is supplied in a 1.5-3-fold amount. Sources of information, take into account in the examination 1, USSR Author's Certificate No. 231539, cl. B 01 D 53/02, 10,04,67,

2. Gas purification technologies, content (hydrogen sulfide shop, TNTO, Ser, Mining, M., 1974. p.48 prototype,