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Adsorption news and technical articles from Oil & Gas Journal. Search Adsorption latest and archived news and articles

  1. Modified cycles, adsorbents improve gas treatment, increase mol-sieve life

    Magazine Articles

    Mon, 4 Aug 2008

    potential. ExxonMobil has been involved in adsorption and adsorbent use for at least a half ..... enters from the top of the bed during the adsorption cycle. As the bed adsorbs contaminants over ..... is already near its maximum water- adsorption capacity (for that temperature and

  2. Field tests prove microscale NRU to upgrade low-btu gas

    Magazine Articles

    Thu, 1 Oct 2009

    8-11 conventional pressure swing adsorption , 12-15 or lean oil absorption (Mehra ..... supply. NRU process Pressure swing adsorption is a proven commercial technique that ..... and the reactivated bed reused for adsorption in the next cycle. The demonstration

  3. Market conditions encourage refiners to recover by-product gases


    Mon, 7 Oct 2013

    include cryogenic, pressure-swing adsorption (PSA), semi-permeable membranes ..... and purification (pressure-swing adsorption , membrane). Existing NGL recovery ..... comparison among those technologies.2 Adsorption (PSA system) is the best choice when

  4. Activated carbon passes tests for acid-gas cleanup

    Magazine Articles

    Mon, 24 Jun 1996

    actual plant conditions. Following the adsorption step, the activated carbon was easily ..... be used throughout this discussion: Adsorption capacity -How much hydrocarbon a given ..... hold up to breakthrough of benzene. Adsorption efficiency -The percentage of hydrocarbon

  5. BTX: PROBLEM AND SOLUTION-1: Activated carbon eliminates Claus deactivation problem

    Magazine Articles

    Mon, 22 Oct 2007

    amine. Refrigerating the feed. BTX adsorption from acid gas using molecular sieve ..... enrichment. Fuel-gas stripping. BTX adsorption from acid gas using regenerable activated ..... could be achieved with either carbon adsorption or acid-gas enrichment. It had

  6. SPECIAL REPORT: Extending mole-sieve life depends on understanding how liquids form

    Magazine Articles

    Mon, 19 May 2008

    slows the mass transfer rate of moisture adsorption plus the heavier hydrocarbons tend to ..... permanently restrict sites for moisture adsorption . 1 Liquid droplets hitting the molecular ..... fewer than 500, and the incremental adsorption temperature had no negative effect on

  7. Two-phase expanders manage feed-gas changes


    Mon, 3 Mar 2014

    that removes CO2 from the gas down to about 5 ppm (vol). The next process block is a thermally regenerated two-stage adsorption system with molecular sieves that remove water as the first stage, while the second stage, based on activated carbon, removes

  8. Energy optimization drives design for Saudi Aramco NGL-recovery plant


    Mon, 3 Feb 2014

    the condensed water and hydrocarbon liquid. This separation will help reduce the water content in the feed gas before the adsorption process in the molecular-sieve dehydration unit and hence optimize the size of the dehydrators. A study assessed the feasibility

  9. Study compares COS-removal processes

    Magazine Articles

    Mon, 22 Sep 2003

    enlarge image Type I: One-stage direct adsorption with inlet preheating. Synetix's Puraspec ..... costs. Type II: One-stage direct adsorption (no preheat), low sulfur-loading ..... wt %. Type III: One-stage direct adsorption (no preheat), high sulfur-loading

  10. BTX: PROBLEM AND SOLUTION-Conclusion: CBUs eliminate BTX-induced catalyst deactivation

    Magazine Articles

    Mon, 5 Nov 2007

    completely dried long before the end of the adsorption cycle. This water is carried directly ..... superficial velocity through the bed when in adsorption mode. Design guidelines have been reported ..... enhance efficiency: lowest possible adsorption temperature balanced against relative

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