diff --git a/changelog.txt b/changelog.txt
index 5fc39af..a3301a1 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -3,12 +3,15 @@ Version: 1.0.11
 Date: 13.4.2022   
   Features:
     - updated ru locale thanks to Astorin
+    - flame throwers can now use kerosene and desulfurized kerosene
+    - added highly advanced oil/kerosene processing
 
   Changes:
     - Overhaul mode is now off by default to prevent sync issues
     - made early game techs towards ass. machine 2 cheaper to improve early game
     - added prerequisite for fi advanced purification tech
     - unused crusher recipes are now hidden
+    - heavily nerfed fi stage uranium purification, also nerfed extraction of uranium/thorium with purification
 
   Bugfixes:
     - temporary fix for multiplayer GUI handling by x2605
diff --git a/locale/en/lang_en.cfg b/locale/en/lang_en.cfg
index 31e5473..f0c5d2e 100644
--- a/locale/en/lang_en.cfg
+++ b/locale/en/lang_en.cfg
@@ -194,7 +194,7 @@ fi_arc_glass=Molten industrial glass
 fi_arc_gold=Molten gold
 fi_arc_titan=Molten titan
 fi_arc_neodym=Molten neodymium
-fi_acid_water=Acid gas
+fi_acid_gas=Acid gas
 
 
 fu_hydrogen=Hydrogen
diff --git a/prototypes/248k_techs.lua b/prototypes/248k_techs.lua
index 6bd9a57..73b7668 100644
--- a/prototypes/248k_techs.lua
+++ b/prototypes/248k_techs.lua
@@ -214,6 +214,27 @@ data:extend({
             time = 30,
         },
     },
+    {
+        name = 'el_purifier_2_tech',
+        type = 'technology',
+        icon = sprite('el_purifier_2_tech.png'),
+        icon_size = 128,
+        prerequisites = {'el_purifier_tech'},
+        effects = {
+            { 
+                type = 'unlock-recipe',
+                recipe = 'el_purify_stone_2_recipe',
+            }
+        },
+        unit = {
+            count = '50',
+            ingredients = {
+                {'automation-science-pack',1},
+                {'logistic-science-pack',1},
+            },
+            time = 30,
+        },
+    },
     {
         name = 'el_grower_tech',
         type = 'technology',
diff --git a/prototypes/el_recipes.lua b/prototypes/el_recipes.lua
index 0503352..4d14fd4 100644
--- a/prototypes/el_recipes.lua
+++ b/prototypes/el_recipes.lua
@@ -895,6 +895,24 @@ data:extend({
         energy_required = 1,
         always_show_made_in = true
     },
+    {
+        name = 'el_purify_stone_2_recipe',
+        type = 'recipe',
+        enabled = 'false',
+        category = 'el_purifier_category',
+        main_product = 'el_dirty_water',
+        ingredients = {
+            {type="fluid", name="water", amount=100},
+            --{type="fluid", name="steam", amount=240, temperature=165},
+            {type="item", name="stone", amount=10}
+        },
+        results = {
+            {type="fluid", name="el_dirty_water", amount=100},
+            {type="item", name="el_materials_pure_aluminum", amount=2},
+        },
+        energy_required = 1,
+        always_show_made_in = true
+    },
     {
         name = 'el_purify_iron_recipe',
         type = 'recipe',
diff --git a/prototypes/fi_recipes.lua b/prototypes/fi_recipes.lua
index 31fd071..e55403e 100644
--- a/prototypes/fi_recipes.lua
+++ b/prototypes/fi_recipes.lua
@@ -862,17 +862,17 @@ data:extend({
         category = 'el_purifier_category',
         main_product = 'fi_thorium232_item',
         ingredients = {
-            {type="fluid", name="fi_strong_acid", amount=200},
-            {type="fluid", name="water", amount=50},
+            {type="fluid", name="fi_strong_acid", amount=800},
+            {type="fluid", name="water", amount=200},
             --{type="fluid", name="steam", amount=240, temperature=165},
-            {type="item", name="iron-ore", amount=10}
+            {type="item", name="iron-ore", amount=40}
         },
         results = {
-            {type="fluid", name="fi_dirty_water", amount=50},
-            {type="item", name="fi_thorium232_item", amount=2},
-            {type="item", name="el_materials_pure_iron", amount=8}
+            {type="fluid", name="fi_dirty_water", amount=200},
+            {type="item", name="fi_thorium232_item", amount=1},
+            {type="item", name="el_materials_pure_iron", amount=39}
         },
-        energy_required = 4,
+        energy_required = 16,
         always_show_made_in = true
     },
     {
@@ -882,17 +882,17 @@ data:extend({
         category = 'el_purifier_category',
         main_product = 'uranium-238',
         ingredients = {
-            {type="fluid", name="fi_strong_acid", amount=200},
-            {type="fluid", name="water", amount=50},
+            {type="fluid", name="fi_strong_acid", amount=800},
+            {type="fluid", name="water", amount=200},
             --{type="fluid", name="steam", amount=240, temperature=165},
-            {type="item", name="copper-ore", amount=10}
+            {type="item", name="copper-ore", amount=40}
         },
         results = {
-            {type="fluid", name="fi_dirty_water", amount=50},
-            {type="item", name="uranium-238", amount=2},
-            {type="item", name="el_materials_pure_copper", amount=8}
+            {type="fluid", name="fi_dirty_water", amount=200},
+            {type="item", name="uranium-238", amount=1},
+            {type="item", name="el_materials_pure_copper", amount=39}
         },
-        energy_required = 2,
+        energy_required = 16,
         always_show_made_in = true
     },
     {
@@ -905,15 +905,15 @@ data:extend({
             {type="fluid", name="fi_strong_acid", amount=1000},
             {type="fluid", name="water", amount=500},
             --{type="fluid", name="steam", amount=240, temperature=165},
-            {type="item", name="uranium-ore", amount=100}
+            {type="item", name="uranium-ore", amount=500}
         },
         results = {
             {type="fluid", name="fi_dirty_water", amount=500},
-            {type="item", name="el_energy_crystal_item", amount=50},
-            {type="item", name="uranium-238", amount=20},
-            {type="item", name="uranium-235", amount=4},
+            {type="item", name="stone", amount=450},
+            {type="item", name="uranium-238", amount=49},
+            {type="item", name="uranium-235", amount=1},
         },
-        energy_required = 2,
+        energy_required = 20,
         always_show_made_in = true
     },
 
diff --git a/prototypes/fission/fi_modules.lua b/prototypes/fission/fi_modules.lua
index 392a5ad..8188863 100644
--- a/prototypes/fission/fi_modules.lua
+++ b/prototypes/fission/fi_modules.lua
@@ -45,7 +45,10 @@ local limitation_list = {
     'gr_materials_stack_up_item_recipe',
     'gr_materials_stack_down_item_recipe',
     'fi_rich_powder_recipe',
-    'fi_strong_acid_recipe'
+    'fi_strong_acid_recipe',
+    'fi_refinery_basic_recipe',
+    'fi_refinery_coal_recipe',
+    'fi_refinery_sulfur_recipe'
 }
 
 --item
diff --git a/prototypes/fission/fi_refinery.lua b/prototypes/fission/fi_refinery.lua
index 5bb1efe..dc85dc6 100644
--- a/prototypes/fission/fi_refinery.lua
+++ b/prototypes/fission/fi_refinery.lua
@@ -45,6 +45,7 @@ data:extend({
         energy_source = {
             type = 'electric',
             usage_priority = 'secondary-input',
+            emissions_per_minute = 20,
             --input_flow_limit = '4MW',
         },
         energy_usage = '1MW',
diff --git a/ressources/techs/el_purifier_2_tech.png b/ressources/techs/el_purifier_2_tech.png
new file mode 100644
index 0000000..ed7d217
Binary files /dev/null and b/ressources/techs/el_purifier_2_tech.png differ