DE250128C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- M 250128 CLASS 12 «. GROUP

FAUSTIN HLAVATI in VIENNA.

Patented in the German Empire on February 25, 1911.

The present process consists in making hydrogen and carbon oxide by heating a Mixture of alkali or alkaline earth hydroxide with a metal and carbon, among other possible To produce pressure reduction.

It is based on the knowledge that certain metals in the presence of coal are similar to alkalis or water bound to alkaline earths (hydroxyl water) to withdraw the oxygen when the temperature rises and to the Able to transfer coal.

Then one lets water or steam on the resulting oxides of the alkalis or the alkaline earths act in order to convert the latter anew into hydroxides or hydrates.

Example I.

If pulverized coal is mixed with the appropriate, finely divided metal (e.g. zinc, lead, iron, copper, cobalt, nickel, bismuth, etc.) and with any hydroxide or hydrate of the alkalis or alkaline earths to form an intimate mixture, put it in a container and close it the latter is hermetically sealed and heated the contents at about 50 ⁰ C, the metal is oxidized by the alkali metal hydroxide or Erdälkalihydroxyd formation of hydrogen, namely, the higher the applied temperature is more rapidly. The metal oxide remains in the container, mixed with coal and with the alkali oxide or alkaline earth oxide. If the above mixture is brought to an even higher temperature (300 to 550 ^° C.), the carbon in question also gradually reduces the metal oxide in question to the original metal with formation of carbon, the resulting carbon oxide reducing further metal oxide with formation of _{CO 2.}

The resulting CO ₂ in the presence of z. B. Na ₂ O or K ₂ O or Ca O or Sr O or Ba O forms Na ₂ CO ₃ or K ₀ CO ₃ or Ca CO ₃ or Sr CO ₃ or Ba CO ₃ . These carbonates are becoming finite. converted into the original oyds by further coal with formation of 2 CO according to the equations:

2C

i. 4 KOH + 2Cu + 2 C 2K ₂ O + 2CuO + 2C + 4H;

2 2 K ₂ O + 2 CuO + 2 CO + Cu + C0 + CuO -J- C;

2 _Λ

- 2K ₂ O + Cu

_{3.2K 2} O + 2Cu + CO ₂ + C
= K ₂ CO ₃ + K ₂ O + 2Cu + C.

50

55

Is now in the remaining mixture of coal, alkali or alkaline earth oxide and Metal water or steam supplied so that alkali or alkaline earth oxide in hydroxide is convicted, the above process can be carried out anew, as long as when there is still coal in the container.

In this method, such a temperature must be avoided at which the alkali or alkaline earth oxide is reduced by the coal or whichever is added Metal would evaporate.

Example II.

The generation of hydrogen and of

Carbon dioxide according to the above procedure can be used at significantly lower temperatures take place when one by pumping the gases from the container into this latter gets a vacuum. The higher the vacuum in the container, the lower the temperature effect is necessary on the mixture.

Example III.

If you mix any alkali hydroxide or suitable alkaline earth hydroxide with finely divided Palladium and charcoal, and if the mixture is heated to about 200 ° C., carbon oxide is obtained first, while hydrogen is obtained from the hydroxyl water is occluded to the saturation of palladium. Heated one to 250 ° to 350 ° C. and pumps the Gases out of the container in such a way that a vacuum is obtained therein, so one obtains hydrogen with carbon monoxide.

Example IV.

The mixture is heated in the container as described under I right from the start about 450 ° to 600 ° C, a hydrogen-carbon oxide mixture is obtained. You get by pumping out the gases in the container, a vacuum below 45 mm barometer level is achieved the above gas mixture at a significantly lower temperature.

Claims (1)

Patent claim: Process for the production of hydrogen and carbon oxide, characterized in, that one is a mixture of any alkali metal hydroxide or alkaline earth metal hydroxide or finally a mixture both with coal and a finely divided metal or metal mixture in front of the air inlet hermetically sealed container heated and possibly works under pressure reduction.