Ethylene tail gas recovery
In recent years, with the increase in people's awareness of environmental protection, the improvement of environmental requirements for petrochemical plants in China and around the world, and the recovery and reuse of waste to reduce production costs, considering the higher economic efficiency for enterprises, the exhaust gas recovery technology of ethylene and acrylic plants has great social and economic benefits.
Technology of desulfurization and CO2 removal using NHD method
Gas decarbonization technology using polyethylene glycol dimethyl ether as the absorption solution, known abroad as Seleoxl technology, known as NHD technology in China; this technology is included in the National Catalog of Clean Manufacturing Technologies in Key Industries by the State Economic and Trade Commission. This technology is a physical technology for CO2 removal, regeneration is carried out using air or nitrogen, so this process does not require the consumption of steam.
Methane extraction technology - biogas
PSA natural gas purification is a technology using adsorbent to separate gases such as methane, carbon dioxide and nitrogen in biogas to achieve the goal of methane enrichment. Biogas removes water through a liquid separation tank and then after desulphurization in a column enters PSA to produce natural gas product. Installation scale: 200~5000nm³/h.
Desulfurization technology using the redox wet method
HDS cyanogen desulfurization and removal technology is a wet oxidation method, which is a distinctive desulfurization method developed by Huaxi and scientific and technical personnel in the synthetic ammonia and coke industry, which allows the desulfurization percentage of H2S in gas to be at least 99.9%, and the desulfurization percentage of HCN to be more than 97%.
Flue gas desulfurization technology using ammonia
A by-product of desulfurization using the ammonia method is ammonium sulfate fertilizer; from 1 ton of ammonia you can get 4 tons of by-product ammonium sulfate, and its profitability depends on the prices of ammonium sulfate and ammonia.
Vinyl chloride recycling technology
After liquid separation in the vinyl chloride tail gas separator, a large amount of vinyl chloride and acetylene still remained, and the vinyl chloride and acetylene were concentrated for disposal by adsorption, which had high economic value. Installation scale: 100~10000nm³/h.
Ecology
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