catalysts催化剂catalystn.催化剂；刺激因素catalyst reactivation催化剂再生catalyst deactivation催化剂钝化catalyst carry-over催化剂带出catalyst surface area催化剂表面积catalyst regeneration催化剂再生catalyst contamination催化剂污染catalyst transfer line催化剂管线, 催化剂输送线catalyst concentration催化剂浓度catalyst deterioration催化剂中毒catalyst containing Zr含钙催化剂