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  1. Separations technology improves amine system's overall reliability

    Magazine Articles

    Mon, 11 Jan 2010

    consequences can be much more severe. These include soot deposition in the converters, runaway hydrocarbon combustion in the Claus unit , and high SO2 emissions that result in regulatory penalties and possibly expensive capacity reductions. In the worst

  2. Solvent conversion at Canadian plant hikes sales gas, cuts CO 2 , S emissions

    Magazine Articles

    Mon, 20 Aug 2007

    sulfur-recovery unit. Plant 1 has a two-stage Claus followed by a Superclaus, while Plant 2 has a three-stage Claus unit . The plant’s license requires a current overall sulfur-recovery efficiency of 96.5%. The original feed to

  3. Processes combine to assist acid-gas handling, reinjection

    Magazine Articles

    Mon, 21 Jan 2002

    energy produced by the downstream Claus unit as low-pressure (LP) steam ..... This uses only one third of the Claus unit 's steam production, and only one ..... specification is important for charging a Claus unit but is equally important for acid

  4. AUXILLIARY EQUIPMENT, CORROSION FOCUS OF REFINING MEETING

    Magazine Articles

    Mon, 4 Apr 1994

    possible alternatie to debottlenecking a Claus unit . What modifications are needed ..... the maximum operating pressure of a Claus unit , provided that the liquid seals ..... gas unit. Sloan: Operating the Claus unit at higher pressures enables the product

  5. Sulfur wash removes soot from Claus catalyst bed online

    Magazine Articles

    Mon, 11 Jun 2001

    Basic Claus process Click here to enlarge image A typical Claus unit consists of a thermal stage followed by two or, more ..... before each catalytic stage. Fig. 1 shows a typical Claus unit . The thermal stage consists of a reaction furnace

  6. Successful revamp of QP MDEA unit hikes capacity

    Magazine Articles

    Mon, 6 Jun 2005

    units goes to a Claus plant for sulfur recovery. The Claus unit was designed also by Elf (the former Elf proprietary ..... a negative impact on the operation of the downstream Claus unit . Click here to enlarge image At that time

  7. Collaboration is key for downstream E&C efficiency

    Magazine Articles

    Mon, 8 Apr 2002

    Kazakhstan, Italy, and the Philippines in various stages of completion. Parsons is in the engineering phase of a Claus unit project for Tengizchevroil at Tengiz, Kazakhstan. The project, when completed in 2005, will process 2,400 t/d

  8. Shell unveils gas biodesulfurization process

    Magazine Articles

    Mon, 11 Oct 1999

    natural gas by converting it to sulfur. A conventional hydrodesulfurization plant comprises an amine scrubbing unit, a Claus unit , and a Claus tail gas unit; the Shell-Paques process requires dilution in a caustic solution followed by treatment

  9. Blending amines debottlenecks Iranian gas plant

    Magazine Articles

    Mon, 13 Nov 2000

    plant is a bottleneck for plant-capacity increase or feed-gas composition change. Sour-gas quality delivered to a Claus unit is such that it requires improvements; that is, an H 2 S concentration increase by introduction of CO 2 slippage in

  10. DANUBE REFINERY OPERATES UNDER COMPLEX AIR REGULATIONS

    Magazine Articles

    Mon, 30 May 1994

    40 tons/year. The offgas from Claus unit No. 2 is not analyzed. The SO2 ..... calculated using produced sulfur and a Claus unit efficiency of 98%. The results ..... expected to be in 1995, Gobel says the Claus unit efficiency will have to be increased

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