PL4148B1

PL4148B1 - Method of gas desulphurization.

Info

Publication number: PL4148B1
Application number: PL4148A
Authority: PL
Filing date: 1923-07-14
Publication date: 1926-04-30

Description

Wynalazek niniejszy dotyczy sposobu odsiarczania gazów, przy którym siarko¬ wodór laczy sie z mineralami zasadowemi i który wskutek zwiekszenia szybkosci re¬ akcji, ma duze zastosowanie praktyczne.Wedlug sposobu niniejszego mozna znacznie odsiarczac duza ilosc gazu przy szybkim pradzie nawet przy nieduzej za¬ wartosci siarkowodoru. W tym celu prze¬ prowadza sie gaz, zawierajacy siarkowo¬ dór, nad mineralami zasadowemi, które sa ogrzane do temperatury wielokrotnie wyz¬ szej niz temperatura pokojowa.Wskutek ogrzania mineralów zasado¬ wych, szybkosc reakcji jest znacznie wiek¬ sza, ; --i,;:.^;: Wedlug, wynalazku niniejszego ^kre¬ slono, ze mineraly zasadowe maja naj¬ wyzsza zdolnosc odsiarczania gazów, siar¬ kowodór zawierajacych, w pewnych gra¬ nicach temperatur, lezacych powyzej temperatury pokojowej. Powyzej i poni¬ zej tych granic zdolnosc odsiarczania jest mniejsza.Naprzyklad przy wapnie granice tem¬ peratur, przy których szybkosc reakcji jest najwieksza, lezy pomiedzy 700° a 1100°.Dla innych mineralów zasadowych mozna w latwy sposób okreslic granice tempera¬ tury. W celu moznosci uzywania bez przer¬ wy jtych samych mineralów ogrzewa sie je, wedlug wynalazku niniejszego do tem¬ peratury wielokrotnie wyzszej niz tempe¬ ratura pokojowa i regeneruje sie je zapo- moca gazów, zazwyczaj mozliwie obojet¬ nych. Ogrzanie mineralów do odpowied-niej temperatury przyspiesza regeneracje.Regeneracja jest najskuteczniejsza je¬ zeli ogrzewa sie mineraly zasadowe do temperatury lezacej w pewnych okreslo¬ nych granicach. Naprzyklad przy wapnie temperatura ta lezy pomiedzy 700° a 1100°, Regeneracja zapomoca gazów obojet¬ nych moze sie odbywac na zmiane z re- .akcfa pochlaniania. Niekiedy jest pozada¬ ne regenerowac zapomoca produktów spa¬ lania (spalin) gazów odsiarczonych. PLThe present invention relates to a gas desulphurization process in which hydrogen sulphide is combined with alkaline minerals and which, due to the increase in the reaction rate, has great practical application. According to the present process, a large amount of gas can be desulphurized considerably at high current even with a low hydrogen sulphide content . To this end, a gas containing hydrogen sulfide is passed over the alkaline minerals which are heated to a temperature many times higher than room temperature. Due to the heating of the basic minerals, the rate of reaction is much greater; According to the present invention, it was pointed out that basic minerals have the highest ability to desulphurize gases, containing hydrogen sulfide, at certain temperature limits, above room temperature. Above and below these limits, the desulphurization capacity is lower. For example, for lime, the temperature limits at which the reaction rate is fastest lie between 700 ° and 1100 °. For other basic minerals, temperature limits can be easily determined. In order to be able to use the minerals themselves without interruption, according to the present invention, they are heated to a temperature many times higher than room temperature and regenerated with gases, usually inert as much as possible. Heating the minerals to a suitable temperature accelerates regeneration. Regeneration is most effective when the basic minerals are heated to a temperature within certain limits. For example, in the case of lime, the temperature is between 700 ° and 1100 °. Regeneration by means of inert gases can be alternated with the absorption reaction. It is sometimes desirable to regenerate the combustion products (exhaust gases) of desulfurized gases. PL

Claims

Patent claims. 1. A process for desulfurization of gases, characterized by the fact that gases containing hydrogen sulfide are carried over base minerals and heated to a temperature particularly suitable for combining them with hydrogen sulfide.

2. The method according to claim A process as claimed in claim 1, characterized in that the gases containing hydrogen sulfide are passed over lime heated to a temperature of 700 to 1100 °.

3. The method according to p. According to claim 1, characterized by the fact that the basic minerals are regenerated with the aid of as inert gases when combined with hydrogen sulphide, whereas the basic minerals are heated during regeneration to a temperature lying within certain limits where regeneration is most advantageous.

4. The method according to p. The method of claim 3, characterized in that the lime is heated to a temperature of 700 ° to 1100 ° during regeneration.

5. The method according to p. 3. The process of claim 3, wherein the combustion products of the desulfurized gas are used to regenerate basic minerals. Erich Will. Deputy: S. Pawlikowski, patent attorney. Print by L. Boguslawski, Warsaw, PL