diff --git a/openmc/data/ace.py b/openmc/data/ace.py
index 03052bcab..4085b4222 100644
--- a/openmc/data/ace.py
+++ b/openmc/data/ace.py
@@ -282,7 +282,7 @@ class Library(object):
 
         lines = [ace_file.readline() for i in range(13)]
 
-        while len(lines) != 0 and lines[0] != '':
+        while len(lines) != 0 and lines[0].strip() != '':
             # Read name of table, atomic mass ratio, and temperature. If first
             # line is empty, we are at end of file
 
diff --git a/openmc/data/function.py b/openmc/data/function.py
index bea6f5e9a..56a3d4a45 100644
--- a/openmc/data/function.py
+++ b/openmc/data/function.py
@@ -97,7 +97,7 @@ class Tabulated1D(object):
 
             if self.interpolation[k] == 1:
                 # Histogram
-                y[contined] = yi
+                y[contained] = yi
 
             elif self.interpolation[k] == 2:
                 # Linear-linear
diff --git a/openmc/data/neutron.py b/openmc/data/neutron.py
index 75c38e823..450cf81ec 100644
--- a/openmc/data/neutron.py
+++ b/openmc/data/neutron.py
@@ -178,7 +178,7 @@ class IncidentNeutron(object):
     @temperature.setter
     def temperature(self, temperature):
         cv.check_type('temperature', temperature, Real)
-        cv.check_greater_than('temperature', temperature, 0.0)
+        cv.check_greater_than('temperature', temperature, 0.0, True)
         self._temperature = temperature
 
     @energy.setter
@@ -448,6 +448,10 @@ class IncidentNeutron(object):
                 # Create summed reaction with appropriate cross section
                 rx = Reaction(mt)
                 mts = data.get_reaction_components(mt)
+                if len(mts) == 0:
+                    warn('Photon production is present for MT={} but no '
+                         'reaction components exist.'.format(mt))
+                    continue
                 rx.xs = Sum([data.reactions[mt_i].xs for mt_i in mts])
 
                 # Determine summed cross section
diff --git a/openmc/data/thermal.py b/openmc/data/thermal.py
index 6e3f6d452..9de39f518 100644
--- a/openmc/data/thermal.py
+++ b/openmc/data/thermal.py
@@ -16,6 +16,7 @@ from openmc.stats import Discrete, Tabular
 
 _THERMAL_NAMES = {'al': 'c_Al27', 'al27': 'c_Al27',
                   'be': 'c_Be',
+                  'beo': 'c_BeO',
                   'bebeo': 'c_Be_in_BeO', 'be-o': 'c_Be_in_BeO', 'be/o': 'c_Be_in_BeO',
                   'benz': 'c_Benzine',
                   'cah': 'c_Ca_in_CaH2',
diff --git a/scripts/openmc-ace-to-hdf5 b/scripts/openmc-ace-to-hdf5
index 21a2718a5..c2198ec4f 100755
--- a/scripts/openmc-ace-to-hdf5
+++ b/scripts/openmc-ace-to-hdf5
@@ -64,7 +64,9 @@ if args.xml is not None:
         directory = os.path.dirname(args.xml)
 
     for ace_table in root.findall('ace_table'):
-        ace_libraries.append(os.path.join(directory, ace_table.attrib['path']))
+        path = os.path.join(directory, ace_table.attrib['path'])
+        if path not in ace_libraries:
+            ace_libraries.append(path)
 
 elif args.xsdir is not None:
     # Find 'directory' section
@@ -116,8 +118,12 @@ for filename in ace_libraries:
     for table in lib.tables:
         if table.name.endswith('c'):
             # Continuous-energy neutron data
-            neutron = openmc.data.IncidentNeutron.from_ace(
-                table, args.metastable)
+            try:
+                neutron = openmc.data.IncidentNeutron.from_ace(
+                    table, args.metastable)
+            except Exception as e:
+                print('Failed to convert {}: {}'.format(table.name, e))
+                continue
             print('Converting {} (ACE) to {} (HDF5)'.format(table.name, neutron.name))
 
             # Determine filename