INDIRECT BOILING FOR WATER TREATMENT

摘要

Systems and methods relate to vaporizing water into steam, which may be utilized in applications such as bitumen production. Initial indirect vaporization of the water at a first pressure for treatment precedes a steam generator boiling the water at a second pressure higher than the first pressure. The indirect vaporization of the water occurs in a vessel upon contact of the water with a substance such as solid particulate heated to a temperature sufficient to vaporize the water. Impurities in the water deposit on the solid particulate and/or combust limiting pass through of the impurities to the steam generator given that a vapor output of the vessel from the initial indirect vaporization condenses and is pressurized before being supplied to the steam generator.

主权项

1. A method of treating and vaporizing water, comprising:
circulating a solid particulate in a vessel; heating the solid particulate; treating the water by contacting the water with the solid particulate heated to a temperature for vaporizing the water into steam that is at a first pressure and is then separated from the solid particulate and condensed into a liquid to form a treated feed; and vaporizing the treated feed to generate steam at a second pressure higher than the first pressure.