減少硫化氫之生物性複合物及方法

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

100140774

專利證號

I 444223

專利獲證名稱

減少硫化氫之生物性複合物及方法

專利所屬機關 (申請機關)

國立交通大學

獲證日期

2014/07/11

技術說明

硫化氫的生物氧化會造成硫酸根的累積及pH的下降，進而影響沼氣中硫化氫的去除效率，本發明我們發現可耐低pH值及高濃度硫酸的硫氧化菌，命名為Thermus sp. CP1，將其固定化於生物活性濾料應用於沼氣硫化氫的去除，在219天的長期監測研究，結果發現當氣體滯留時間為2分鐘時，其平均硫化氫去除率可達95%，硫化氫容量低於154 g m-3 h-1，其去除率達100%，當容量為400 g m-3 h-1，其最大去除效率可達352 g m-3 h-1，進一步分析沼氣流量為150 L h-1，約有50%的硫化氫轉成硫酸根，此發明可應用於沼氣、天然氣純化、造紙業及石化業脫硫反應，避免純化的生物反應器堵塞或氣體短流的現象發生。 The biooxidation of hydrogen sulfide can result in the accumulation of sulfate and the drop of pH affecting the removal efficiency of H2S gas. We have successfully isolated the strain, designated as Thermus sp. CP1, which was capable of tolerating low pH and high sulfate. A biofilter with immobilized Thermus sp. CP1 was applied to estimate the removal efficiency and capacity of H2S. During the 219 days operating period in the biofilter, the removal efficiency attained the average 95% at an EBRT of 120 s. The elimination capacity was near 100% as the inlet loading below 154 g m-3 h-1, while the maximum elimination capacity of 352 g m-3 h-1 was exhibited for an inlet loading of 400 g m-3 h-1. Further study on sulfur recovery showed that the bioconversion rate of 50% into sulfate was obtained at the flow rate of 150 L h-1. This invention can be applied in purification of biogas, natural gas, gas of paper industry and petrochemical industry to avoid short-circuiting in biofilter.

備註

本會(收文號1110027136)回應該校111年5月12日陽明交大研產學字第1110015716號函申請終止維護專利(國立陽明交通大學)

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