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  2. Recovery boiler - Wikipedia

    en.wikipedia.org/wiki/Recovery_boiler

    The invention of the recovery boiler by G.H. Tomlinson in the early 1930s was a milestone in the advancement of the kraft process. [1] Recovery boilers are also used in the (less common) sulfite process of wood pulping; this article deals only with recovery boiler use in the kraft process.

  3. Sulfite process - Wikipedia

    en.wikipedia.org/wiki/Sulfite_process

    The invention of the recovery boiler by G. H. Tomlinson in the early 1930s [2] allowed kraft mills to recycle almost all of their pulping chemicals. This, along with the ability of the kraft process to accept a wider variety of types of wood and produce stronger fibers [ 4 ] made the kraft process the dominant pulping process starting in the ...

  4. Pinch analysis - Wikipedia

    en.wikipedia.org/wiki/Pinch_analysis

    Temperature vs. heat load diagram of hot stream (H 2 O entering at 20 bar, 473.15 K, and 4 kg/s) and cold stream (R-11 entering at 18 bar, 303.15 K, and 5 kg/s) in a counter-flow heat exchanger. "Pinch" is the point of closest approach between the hot and cold streams in the T vs. H diagram.

  5. Steam generator - Wikipedia

    en.wikipedia.org/wiki/Steam_generator

    Supercritical steam generator or Benson boiler, a high-pressure steam generator that operates in the supercritical pressure regime, such that no boiling takes place within it. Steam generator (auxiliary boiler), a steam-powered boiler used on ships to produce a low-pressure steam, heated by a high-pressure steam supply rather than a flame.

  6. Claus process - Wikipedia

    en.wikipedia.org/wiki/Claus_process

    A schematic process flow diagram of a basic 2+1-reactor (converter) SuperClaus unit is shown below: Schematic flow diagram of a straight-through, 3 reactor (converter), Claus sulfur recovery unit. The Claus technology can be divided into two process steps, thermal and catalytic.

  7. Organic Rankine cycle - Wikipedia

    en.wikipedia.org/wiki/Organic_Rankine_cycle

    T-s diagram for the ideal/real ORC. The working principle of the organic Rankine cycle is the same as that of the Rankine cycle: the working fluid is pumped to a boiler where it is evaporated, passed through an expansion device (turbine, [3] screw, [4] scroll, [5] or other expander), and then through a condenser heat exchanger where it is finally re-condensed.

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Recuperator - Wikipedia

    en.wikipedia.org/wiki/Recuperator

    A recuperator is a special purpose counter-flow energy recovery heat exchanger positioned within the supply and exhaust air streams of an air handling system, or in the exhaust gases of an industrial process, in order to recover the waste heat. Generally, they are used to extract heat from the exhaust and use it to preheat air entering the ...

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