Sulfur recovery unit survey (prize for participation)
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This post was last edited by 654262293 on 2011-12-31 10:17. Dear colleagues, as environmental protection devices, sulfur recovery units are receiving increasing attention from various organizations. Could you all share information about the status of such devices in your respective locations? In the following format: Source of feed gas: Scale of the facility: Technology used in the facility: Operation status of the facility: Name of the organization (extra points for providing the organization’s name): Type and name of the catalyst used:
Source of feed gas: Purified acidic gas and acidic gas containing amino acids from the stripping tower. Plant capacity: Designed for 21,800 tons. Technology used in the plant: SSR. Operation status of the plant: Not satisfactory; there are many discrepancies compared to the design. Name of the organization (can be left blank if it’s not convenient): xxx. Type and name of catalysts used: Aluminum-based catalysts for sulfur production, and cobalt-molybdenum catalysts for hydrogenation. I’ll take a moment to respond first; I’m committed to active participation
This post was last edited by 654262293 on 2011-12-27 09:11. For our former facility: The source of the feed gas is acidic gas from low-temperature methanol washing plus the stripping gas from the shift stripper. The capacity of the plant is 20,000 tons per year. The technology used in this plant is the super Claus sulfur recovery process (three-stage Claus + super Claus). The operation of the plant is not satisfactory, with significant deviations from the design specifications. Name of the company: (I have left the company, so it’s not possible to disclose it.) Types and names of the catalysts used: All are imported catalysts, aluminum-based and titanium-based Claus catalysts of models CRS-31 and CR-3S, as well as super Claus catalysts.
Raw materials: Acidic water stripping (containing acidic gases) + solvent regeneration unit (for cleaning acidic gases). Plant capacity: 5,000 tons per year. Technology used: SSR. Operation status of the plant: Not in operation yet; it will start operating once the weather warms up in spring, given that the Changqing low-sulfur crude oil has a low sulfur content. Types and names of catalysts: Sulfur production catalyst – component is alumina (not sure if this is correct); hydrogenation catalyst – cobalt oxide, molybdenum oxide
Raw materials: Acidic water stripping (including acidic gases) + solvent regeneration unit (to clean acidic gases). Plant capacity: 30,000 tons per year. Technology used: SSR. Operation status of the plant: Operating fairly normally. Type and name of catalyst: LS-811, LS-971, LS-931
LS-931 is incorrect; it’s the LS-951 cobalt-molybdenum hydrogenation catalyst
Source of feed gas: Acidic gas from low-temperature methanol washing + stripping gas from the shift stripper. Plant capacity: 30,000 tons per year. Technology used in the plant: Three-stage Claus process. Operating condition of the plant: Fair; frequent shutdowns occur. Types and names of catalysts used: LS-811, LS-971, LS-931
Reply to 1# 654262293: Source of feed gas: acidic gas from low-temperature methanol washing, acidic gas from phenol recovery, and expanded gas from gas-water separation. Plant capacity: 7,000 tons per year. Technology used in the plant: Ultra-high efficiency Claus reaction. Status of the plant: Under construction. Name of the organization (can be left blank if it’s not convenient to disclose): Confidential. Types and names of catalysts used: CRS-31, CR-3S, KF756, SUPERCLAUS
Reply to 8# tySky: Do you use Lurgi reactors for gas production? Otherwise, there will be no phenol recovery
This post was last edited and replied to by ty sky on 2011-12-26 at 16:24. Reply 9# 654262293: I’m a beginner and don’t know much about vaporization yet. The project mentioned above is indeed a Lurgi furnace. For a new project currently under development, the BGL system is being used, and phenol recovery is part of the overall process in the plant. However, among the acidic gases used for sulfur recovery, only the low-temperature methanol washing acidic gas is involved:) Super Claus is used for this purpose. Right now, we are only working on sulfur recovery; we haven’t yet addressed the balance of the entire plant, and it’s really confusing.
Source of feed gas: Gas from the regeneration tower. Plant capacity: Associated with a coking plant of 1.35 million tons per year. Technology used in the plant: Claus catalytic technology. Operating status of the plant: Ready for operation. Name of the company (can be left blank if not convenient): Type and name of the catalyst used