Roasted Corn Chowder with Lime Cured Shrimp

Name: Roasted Corn Chowder with Lime Cured Shrimp
Ingredients: 1 lime; 1 pound baby shrimp, shelled and deveined; 2 cups fresh corn kernels (from about 4 ears) or thawed frozen corn kernels (do not use canned corn); 1/4 cup vegetable oil; 1/2 cup chopped raw bacon; 1 red onion, diced; 1/2 cup celery, finely diced; 1 green bell pepper, diced; 1 red bell pepper, diced; 6 cloves garlic, minced; 1/2 cup all-purpose flour; 2 cups (1 pint) heavy cream; 6 cups chicken stock; 1/2 pound red bliss potatoes, diced; 3 tablespoons freshly squeezed lime juice; 2 tablespoons chopped fresh parsley leaves; 1/4 teaspoon cayenne pepper; 1 bunch scallions, chopped; Oyster crackers, as an accompaniment