Carbonate process, regenerative

However, the actual product contained also sp carbon and impurities (H, N, I and Ni) [42,43]. Along with direct electrochemical carbonization processes (Eqs 4.14 4.16) also indirect reactions were explored, in which the active species is electrochemically generated and consumed for the chemical carbonization in a regenerative loop. For instance, dehydrochlorination of 1,1,2-trichloroethylene proceeds with /-buthanolate (BuO ), which is generated from Z-butylalcohol (BuOl 1) on a Ni cathode in dimethylsulfoxide electrolyte solution [44]. 

Regenerative Aqueous Carbonate Process for Utility and Industrial Sulfur Dioxide Removal... 

Hydrogen sulfide, H2S, is removed by a variety of processes, of which one is a regenerative solution process using aqueous solutions of sodium hydroxide, NaOH, calcium hydroxide, Ca(OH)2, sodium phosphate, Na PO, and sodium carbonate, Na2C02. 

Bosch A regenerative, two-stage process for reducing carbon dioxide to oxygen ... 

Jones A regenerative process for making carbon black by pyrolyzing petroleum fractions. The gaseous co-product can be added to town gas. 

Girbotol process a continuous, regenerative process to separate hydrogen sulfide, carbon dioxide, and other acid impurities from natural gas, refinery gas, etc., using mono-, di-, or triethanolamine as the reagent. 

To demonstrate the potential available, simulations were carried out for the oxidation of carbon monoxide on a palladium shell catalyst with water desorption from 3A zeolite as a heat sink, based on experimentally validated model parameters for the individual steps (Figure 16). The calculations indicated that the reaction cycle time could be lengthened by a factor of 10, to a total 20 minutes, in comparison to a simple regenerative process with a similar amount of inert material instead of adsorbent in the fixed bed and for the same threshold for temperature deviation from the initial value. 

In the reformer, multiple reactions occur simultaneously. This process is endothermic and is subject to carbon laydown thus, refiners must regenerate reforming catalysts. Several catalyst-regenerating approaches are possible. Semi-regenerative processes use... 

The first proposals for the employment of electrical heating in the production of phosphorus were made by Headman, Parker and Robinson.5 The simultaneous production of an alkali silicate by heating alkali phosphate, silica and carbon in a regenerative furnace was patented by Folie-Desjardins.6 In the Readman-Parker-Robinson process, as worked later, the phosphate, carbon and fluxes, previously heated to a high temperature, are introduced into the upper part of an electric furnace made of iron lined with refractory bricks and fitted with condensing pipes in its upper part. The gases pass through a series of copper condensers, the first of which contains hot water, the others cold water (or see p. 9). It has been found advisable to replace... 

Douren, L., Making the Most of Sulfuric Acid, More, A.I., Ed., British Sulphur, London, 1982, 317. Bosch A regenerative, two-stage process for reducing carbon dioxide to oxygen ... 

---