MMT sensitivity test of paraffin oil catalytic cracking gasoline
MMT (mgMn/L)	RON	△RON	MON	△MON	Test grounding
0	88.5		77.7		National petroleum products Quality Supervision and Inspection Center
18	91.1	+2.6	79.7	+2.0
0	90.5				PetroChina Changqing Petrochemical Branch Company
15	92.9	+2.4
0	91.3		79.5		PetroChina Yumen Refinery
16	93.6	+2.3	81.1	+1.6

 

MMT sensitivity test with 90% induced steam and 10% direct steam
MMT (mg Mn/L)	RON	△RON	Test grounding
0	89.9		PetroChina Yumen Refinery
18	92.3	+2.7
0	87.5		PetroChina Changqing Petrochemical Branch Company
15	90.2	+2.7
0	89.2		Shandong Shida Technology Group Co., Ltd.
18	91.6	+2.4

The susceptibility measurement data of MMT in each factory indicate: 
(1) For paraffin oil catalytic cracking gasoline, when RON was 87-89 and MMT was added at a concentration of 18mg Mn/L, the RON gain was 2.5-3.0. Under normal circumstances, the use of MMT alone can make paraffin oil catalyzed gasoline meet the specification of 90-octane unleaded gasoline. 
(2) Heavy oil catalytic cracking gasoline, with RON around 90, fails to meet the anti-knock index of unleaded gasoline of grade 93. At this point, as long as the addition concentration is less than 18mg Mn/L and MMT is added, the standard of unleaded gasoline of No. 93 can be achieved. 
(3) When catalytic gasoline is blended with straight-run gasoline, it has a better sensitivity to MMT. In the production of No. 90 unleaded gasoline, MMT can help heavy oil catalytic gasoline absorb 5% to 10% of straight-run gasoline. 
(4) MMT is a highly valuable octane number improver that flexibly blend oil refineries.