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  2. Frasch process - Wikipedia

    en.wikipedia.org/wiki/Frasch_process

    The second Frasch-process mine opened in 1912 in Brazoria County, Texas. The Gulf Coast came to dominate world sulfur production in the early and middle 20th century. [7] However, starting in the 1970s, byproduct sulfur recovery from oil and natural gas lowered the price of sulfur and drove many Frasch-process mines out of business.

  3. Bergius process - Wikipedia

    en.wikipedia.org/wiki/Bergius_process

    Ruins of coal elevator in a synthetic gasoline plant from WWII (IG Farben Industrie Police, Poland) Coal hydrogenation is not used commercially any more. [5] The Bergius process was extensively used by Brabag, a cartel firm of Nazi Germany. Plants that used the process were targeted for bombing during the Oil Campaign of World War II. At ...

  4. Sicilian method - Wikipedia

    en.wikipedia.org/wiki/Sicilian_method

    Nevertheless, extracting the sulfur created serious ecological hardship on the country. [7] By 1912 the United States overtook Sicily for the worldwide production of sulfur. Large consistent bases of sulfur in Texas and Louisiana, as well as low-cost fuel and large quantities of water, made the newly invented Frasch process economical. [5]

  5. Contact process - Wikipedia

    en.wikipedia.org/wiki/Contact_process

    The contact process is a method of producing sulfuric acid in the high concentrations needed for industrial processes. Platinum was originally used as the catalyst for this reaction; however, because it is susceptible to reacting with arsenic impurities in the sulfur feedstock, vanadium(V) oxide (V 2 O 5) has since been preferred.

  6. Hybrid sulfur cycle - Wikipedia

    en.wikipedia.org/wiki/Hybrid_sulfur_cycle

    Simplified diagram of the Hybrid sulfur cycle. The hybrid sulfur cycle (HyS) is a two-step water-splitting process intended to be used for hydrogen production.Based on sulfur oxidation and reduction, it is classified as a hybrid thermochemical cycle because it uses an electrochemical (instead of a thermochemical) reaction for one of the two steps.

  7. Claus process - Wikipedia

    en.wikipedia.org/wiki/Claus_process

    Piles of sulfur produced in Alberta by the Claus process awaiting shipment at docks in Vancouver, Canada. The Claus process is the most significant gas desulfurizing process, recovering elemental sulfur from gaseous hydrogen sulfide. First patented in 1883 by the chemist Carl Friedrich Claus, the Claus process has become the industry standard.

  8. Wet sulfuric acid process - Wikipedia

    en.wikipedia.org/wiki/Wet_sulfuric_acid_process

    The wet sulfuric acid process (WSA process) is a gas desulfurization process. After Danish company Haldor Topsoe introduced this technology in 1987, it has been recognized as a process for recovering sulfur from various process gases in the form of commercial quality sulfuric acid (H 2 SO 4) with the simultaneous production of high-pressure steam.

  9. Lead chamber process - Wikipedia

    en.wikipedia.org/wiki/Lead_chamber_process

    The lead chamber process was an industrial method used to produce sulfuric acid in large quantities. It has been largely supplanted by the contact process.. In 1746 in Birmingham, England, John Roebuck began producing sulfuric acid in lead-lined chambers, which were stronger and less expensive and could be made much larger than the glass containers that had been used previously.