Ａ　ｎｅｗ　ｒｏｕｔｅ　ｆｏｒ　ｔｒｅａｔｍ
ｅｎｔ　ｏｆ　Ｃｒ^６＋ｃｏｎｔａｉｎｉｎｇ　ｗａｓｔｅ　ｗａｔｅｒ　ｆｒ
ｏｍ　ｍａｎｕｆａｃｔｕｒｅ　ｏｆ　ｈｉｇｈ　ｔｅｍｐｅｒａｔｕｒｅ　ＣＯ　ｓｈ
ｉｆｔ　ｃａｔａｌｙｓｔ　ｗａｓ　ｄｅｓｃｒｉｂｅｄ．Ａ　ｕｓｅｆｕｌ　ｂｙｐ
ｒｏｄｕｃｔＭｇＳＯ４·７Ｈ_２Ｏｃａｎ　ｂｅ　ｏｂｔａｉｎｅｄ　ｗｈｉｌ
ｅ　ｅｌｉｍｉｎａｔｉｎｇ　ｃｈｒｏｍｉｕｍ　ｐｏｌｌｕｔｉｏｎ．

The paper investigated the influence of distrib
ution of palladium-gold on kinetic parameters, activity, selectivity, surface a
ppearance of active components, and temperatureprogrammed reduction (TPR) of vinyl acetate synthesis catalyst. Experiment on different catalysts showed that egg-shell type catalyst with surface distribution has better surface dispersion,lo
w activation energy for main reaction and higher activation energy for side reac
tion. As the result, it has higher activity and selectivity than egg-white type
and homogeneous catalysts. TPR results showed that catalyst with heterogeneous distribution has two peaks while that with homogeneous distribution has only one peak.

ＭＢ-１，ａ　ｎｅｗｌｙ　ｄｅｖｅｌｏｐｅｄ
　ｎｉｃｋｅｌ　ｐａｓｓｉｖａｔｏｒ　ｗｉｔｈ　ｈｉｇｈ　ｅｆｆｉｃｉｅｎｃｙ　
ａｎｄ　ｓｔａｂｉｌｉｔｙ，ｗａｓ　ｔｅｓｔｅｄ　ｏｎ　ａ　ｉｎｄｕｓｔｒｉａｌ
　ＲＦＣＣ　ｕｎｉｔ．Ｔｅｓｔ　ｒｅｓｕｌｔｓ　ｓｈｏｗｅｄ　ｔｈａｔ，ｗｉｔｈ
　８～１０％　ｒｅｓｉｄｕｅ　ｉｎ　ｆｅｅｄｓｔｏｃｋ　ａｎｄ　１１０００～１３
０００ｐｐｍ　ｎｉｃｋｅｌ　ｉｎ　ｅｑｕｉｌｉｂｉｕｍ　ｃａｔａｌｙｓｔ，ｌｉｇ
ｈｔ　ｏｉｌ　ｙｉｅｌｄ　ｗａｓ　ｉｎｃｒｅａｓｅｄ　ｂｙ　１.４％（ｗｔ），ｃ
ｏｋｅ　ｙｉｅｌｄ　ｗａｓ　ｒｅｄｕｃｅｄ　ｂｙ　１２～１３％（ｗｔ），ａｎｄ　
ｈｙｄｒｏｇｅｎ　ｙｉｅｌｄ　ｗａｓ　ｄｅｃｒｅａｓｅｄ　ｂｙ　５３～５４％（ｗ
ｔ）　ａｆｔｅｒ　ｕｓｉｎｇ　ｔｈｅ　ｐａｓｓｉｖａｔｏｒ．Ａｃｔｉｖｉｔｙ　ｏ
ｆ　ｔｈｅ　ｅｑｕｉｌｉｂｉｕｍ　ｃａｔａｌｙｓｔ　ｗａｓ　ａｌｓｏ　ｉｎｃｒｅ
ａｓｅｄ　ｂｙ　ｔｈｉｓ．

Ａｃｉｄｉｔｙ　ｏｆ　ｔｈｅ　ｆｒｅｓｈ　ａｎｄ　ｈｙｄｒｏｔｈｅｒｍａｌ　ｔｒｅａｔｅｄ　ｓａｍｐｌｅｓ　ｏｆ　ｔｈｒｅｅ　ｔｙｐｉｃａｌ　ＦＣＣ　ｃａｔａｌｙｓｔ　ｍａｔｒｉｘ　ｗａｓ　ｃｈａｒａｃｔｅｒｉｚｅｄ　ｕｓｉｎｇ　Ｐｙ-ＦＴＩＲ．Ｔｈｅ　ａｃｉｄｉｔｙ　ｏｆ　ｔｈｅ　ｍａｔｒｉｘ　ｗａｓ　ｃｏｒｒｅｌａｔｅｄ　ｗｉｔｈ　ｉｔｓ　ｃａｔａｌｙｔｉｃ　ｐｒｏｐｅｒｔｙ　ｆｏｒ　ｃａｔａｌｙｔｉｃ　ｃｒａｃｋｉｎｇ，ｅｓｐｅｃｉａｌｌｙ　ｆｏｒ　ｈｙｄｒｏｇｅｎ　ｔｒａｎｓｆｅｒ　ｒｅａｃｔｉｏｎｓ．Ｉｔ　ｗａｓ　ｆｏｕｎｄ　ｔｈａｔ　ｃａｔａｌｙｔｉｃ　ｐｒｏｐｅｒｔｙ　ｏｆ　ｔｈｅ　
ｍａｔｒｉｘ　ｗａｓ　ｄｉｒｅｃｔｌｙ　ｒｅｌａｔｅｄ　ｔｏ　ａｃｉｄｉｔｙ　ｏ
ｆ　ｉｔｓ　ｅｑｕｉｌｉｂｒｉｕｍ　ｓａｍｐｌｅ，ｎｏｔ　ｆｒｅｓｈ　ｏｎｅ．